ME Test Reviewer 1 PDF

MATERIALS REVIEWER NOTES 1. Scales for weighing aggregates and cement 9. The contractor shall submit in writing a job-mix shall be accurate within ____ % throughout the formula for the mixture supported by laboratory test range of use. Scales shall...

MATERIALS REVIEWER NOTES 1. Scales for weighing aggregates and cement 9. The contractor shall submit in writing a job-mix shall be accurate within ____ % throughout the formula for the mixture supported by laboratory test range of use. Scales shall be inspected and sealed as data along with samples of resources of components often as the Engineer may deem necessary to assure and viscosity – temperature relationships to the their continued accuracy. Engineer for testing and approval at least ____. a) 1.0 % c) 0.5 % a) two weeks c) one week b) 1.5 % d) 2.0 % b) three weeks d) four weeks 2. When cement is placed in contact with the 10. The concrete samples should be stored in a moist aggregate, batches may be rejected unless mixed conditioned temperature within the range of ____ until within _____ hours of such contact. the time of test. a) 1.5 hours c) 0.5 hours a)18* C to 24* C c) 14* C to 24* C b) 2.0 hours d) 2.5 hours b) 15* C to 18* C d) 18* C to 28* C 3.When mixed at the site or in a central mixing plant, the mixing time shall not be less than ______ nor more 11. This is used in soil stabilized road surface due to than ____ unless mixer performance test prove its high ____ property, that is, it absorb and retain adequate mixing of concrete in a shorter time period. water. a) 30 seconds nor more than 90 seconds a) Potassium Chloride c) Magnesium Chloride b) 50 seconds nor more than 90 seconds b) Calcium Chloride d) Sodium Chloride c) 60 seconds nor more than 120 seconds d) 90 seconds nor more than 120 seconds 12. The mass % wear of soil aggregate used in cement/lime proportions should not be more than ____ 4. The flow of water shall be uniform and all water.1 - should be in the drum by the end of the first ____ a) 40 % c) 45 % seconds of the mixing period. b) 50 % d) 55 % a) 45 seconds c) 15 seconds b) 30 seconds d) 20 seconds 13. The uniform rate at which the movable head of the CBR machine travel is _____. 5. Concrete not place within ____ minutes from the a) 0.05 in/ min c) 0.08 in /min time the ingredients were charged into the mixing b) 0.10 in /min d) 0.09 in /min drum shall be used. a) 120 minutes c) 60 minutes 14. Cast in place concrete shall not be post – b) 150 minutes d) 90 minutes tensioned until at least ____ and until the compressive strength has reached the strength specified. 6.When concrete is delivered in truck mixers, a) 7 days c) 14 days additional water may beaded to the batch and b) 10 days d) 20 days additional mixing performed to increase the slump to meet the specified requirement if permitted by the 15. The penetration test is an indication of the ____ of Engineer, provided all these operation are performed asphalt. within ____ after the initial mixing operation and the a) Consistency c) Hardness water and cement ratio is not exceeded. b) Softness d) Flash Point a) 30 minutes c) 45 minutes b) 15 minutes d) 60 minutes 16. Specification requires one (1) Quality test for every ____ of asphalt 7.A sample from a bituminous mix weighs 1000 grams. a) 20 tons c) 50 tons At extraction, it was found out that the dry aggregate b) 200 tons d) 40 tons weighed 950grams. What is the % of asphalt by weight of mix? 17. The ____ is the most commonly used method in a) 5.2 % c) 5.4 % the design and evaluation of bituminous concrete b) 5.0 % d) 4.8% mixes. a) Job mix formula c) Marshall Stability 8. The minimum penetration of the preservative with b) Design mix d) Extraction the surface of the timber piles shall be ____ a) 150 mm c) 250 mm b)20 mm d) 100 mm 18. Vibration shall operate a frequency of 8,300 to 27.In which DPWH item is emulsified asphalt not 9,600 impulses per minute under load at a maximum suitable? spacing of ____ cm. a) Item 301 c) Item 304 a) 30 cm c) 60 cm b) Item302 d) Item 308 b) 50 cm d) 40 cm 28.Unconfined compressive strength test is usually 19. The specific gravity of Sodium Sulfate used in performed on______. soundness test for aggregate should be within the a) Sandy soils c)Organic soils range of ____. b) Silty soils d) Clayey soils a)1.151 to 1.174 c) 1.051 to 1.154 b) 1.250 to 1.178 d) 1.058 to 1.184 29. Consolidation test is usually performed on ____ samples 20. The specific gravity magnesium sulfate solution a) Disturbed c) Consolidated used in soundness test for aggregate should be within b) Undisturbed d) both a & b the range of ____. a) 1.280 to 1.408 c) 1.295 to 1.308 30. A concrete core sample having a maximum height b) 1.180 to 1.308 d) 1.195 to 1.318 of less than_____ of its diameter before capping or height less than its diameter after capping shall not be 21. Aggregate accounts for 92 – 95 % of the weight of tested. the bituminous mixture asphalt accounts for 5 – 8 % of a) 93 % c) 95 % the weight of the mix. The exact percentage to be b) 94 % d) 96 % used is determined by the _____ a) Trial mix c) Job mix 31. The cohesion and internal friction of soil is tested b) Design mix d) Job order by a) Tri axial shear test c) Bearing test 22. _____ is an indication that the asphalt mix is b) Direct shear test d) All of the above overheated. a) Blue smoke c) Rising steam 32. In concrete acceptance, core will be considered b) Stiff appearance d) Mix slumps in truck adequate if the average strength of the cores is equal to what? 23. In checking the temperature of the mix, a) 80% of specified strength & if no single core is less the thermometer should be inserted into the mix at than 75% of specified strength least ____. b) 90% of specified strength & if no single core is lesst a) 2 inches c) 4 inches b) 6 inches d) 6.0 mm han 80% of specified strength c) 85% of specified strength& if no single core 24. _____ is applied on existing bit, or cement is less than 75% of specified strength concrete surface with bituminous materials. a) Bituminous Prime Coat c) Bituminous Seal Coat 33. Before the cement is to be used, sampling must be b) Bituminous Tack Coat d) Bituminous Surface done at least _____ before use. Treatment a) one week c) two weeks b) 14 days d) 12 days 25. The solution used in the soundness test of aggregate shall be cooled to a temperature of 21 +or – 34. Asphalt cement shall not be used while it is 1* C and maintain at that foaming nor shall be heated at ____ at anytime after temperature for at least _____. delivery. a) 24 hours c) 48 hours a) 107* c) 120* b) 36 hours d)18 hours b) 159* 26.Proper compaction of the fill materials is very 35. Moisture content of aggregate in bit mix shall not important, as it will ______. exceed ____ of the time it is introduce into the mixing a) Increase the shear strength unit. b) Decrease permeability a) 1.5 mass % c) 1 mass % c) Minimize compressibility b) 2.0 mass % d) All of the above 36. Batching tolerance for Sand and Aggregate is 45. Minimum thickness of bedding materials ____. beneath the pipe is _____. a) 1 % c) 3 % a) 100 mm c) 200 mm b) 2 % b) 150 mm 37. Between stage of curing, concrete shall not be 46.Diameter Tolerance of gabion dimension is exposed for more than how many hours? _________________. a) 24 hours c)½ hour a) +/-.1mm c) +/-.3mm b) 3 hours d) 72 hours b) +/-.2mm d) +/-.4mm 38. As a Materials Engineer, what will you do with 47. Minimum thickness of galvanized wire mesh is major honeycombed area that is considered as ____________. defective work? a) 2.0 mm c) 2.7 mm a) Plaster b)2.2 mm d) 3.4 mm b) Payment of the concrete will be made an adjustment 48. Minimum density of gabions is ___________. c) Removed and replaced at the expensed of the a) 1,000 kg/cu. m c)1,400 kg/cu. m contractor b) 1,200 kg/cu. m d) 1,500 kg/cu. m 39.If the strength of control specimen does not meet 49. Soundness loss of rocks used for field gabions is the requirement and not feasible to obtain cores due to __________________. structural consideration, as a Materials Engineer a) 9 % after 5 cycles c) 11 % after 5 cycles what will be your decision? b) 10 % after 5 cycles d) 12 % after 5 cycles a) Removed and replaced b) Area will not be paid 50. The heating temperature of reflectorized c) Payment will be made at an adjusted if thermoplastic material during application is _____ applicable a) 130 +/- 7* C c) 200 +/- 7* C b) 150 +/- 7* C d) 211 +/- 7* C 40. After concrete has been placed, it is advisable to 51. The minimum quantity of sample for asphalt maintain fully welted and in position for how many cement is -------. hours? a) 5 kg c) 20 kg a) 14 hours c)72 hours b) 10 kg d) 100 kg b) 24 hours d) 15 – 18 hours 52. For how many years does the small Contractor 41. Rock shall be excavated to a depth ____ below given to procure necessary testing equipment? sub grade within the limit of the roadbed a) 2 years c) 5 years a) 100mm c) 200 mm b) 4 years d) 6 years b) 150 mm 53. The depth of the weakened joints must not be less 42. Minimum penetration of all piles shall be ____. than ____ and a width of___. a) 3 meter c) 7 meter a) 40 mm & 6 mm c) 40 mm & 5 mm b) 6 meter d) 4.5 meter b) 50 mm & 5 mm d) 50 mm & 6 mm 54. Used of bituminous cold mix for potholes patching during rainy/wet period is acceptable 43. Piles shall not be driven within 7 meters of a) False b) true concrete less than _____ old. a) 7 days c) 28 days 55. In soil, all boring shall be carried to a depth of at b) 14 day least ____ below the proposed grade line. a) 0.50m c) 1.5 m 44. Paint contains _____ of pigment and _____ b) 1.0 m d) 1.8 m vehicle. a) 20 % & 80 % c) 79 % & 21 % 56. The test that determines pile bearing capacity b) 21 % & 79 % d) 80 % & 20 % by loading one or more pile and measuring settlement under load is _____. a) Vane shear test b) Pile load test b) Plate bearing test 67. What is the rate of loading for concrete beam 57. The weight of disturbed samples from hard auger tested for flexural stress? or split spoon shall beat least ____. a) 110 – 150 psi/sec c)125 – 175 psi/min a) 1 kg c) 10 kg b) 115 – 150 psi/sec d) 130 - 175 psi/sec b) 20 kg d) 100 kg 68.In concrete sampling paste shall be of normal 58. Submission of sample for testing for cement is consistency of _____ when the rod settles to a point _____. below the original surface in 30 secs. a) 10 kg c) 15 kg a) 10 +/- 1 mm c) 15 +/- 1mm b) 20 kg d) 40 kg b) 11 +/- 1 mm d) 20 +/- 1 mm 59. The length of Shelby Tube of an undisturbed 69.What the temperature of a concrete sample?a) 10 – sample is _____. 15 * C c) 15 – 18* C a) 10” long c) 20” long b)18 – 24 * C b) 18” long 70.What is the wash loss of fine aggregates in the no. 60. For small project where quantity of steel bars is 200 sieve? 10,000 kg or less, what is the basis for acceptance of a) 1 % c) 3 % material If is not in critical structure? b) 2 % d) 4 % a) No testing c) Mill certificate b) P.E, certificate d) Simplified test 71. Retarder can delay the setting time of concrete up to how many hours? 61.______ determines the best combination of the a) 1 hour c) 4 hours material that will produce a potentially stable & durable b) 2 hours d) 8 hours mixture. a) Job mix formula c) Design of bituminous mix 72. Super plasticizer can increase the strength of b) Marshall formula concrete up to how many percent? a) 40 –60 % c) 50 – 70 % 62. _______ is the rate of loading for concrete cylinder b) 50 – 60 % d) 60 – 70 % sample subject to compression test a) 20 - 40 psi/sec c) 15 – 40psi/sec 73.___________ is the moisture in an air – dried soil B)20 - 50psi/sec d) 15 – 40 psi/sec a) Moisture Content b) Natural Moisture Content 63.I n a soil exploration, if the characteristic of rock is c) Hygroscopic Moisture Content questionable, the minimum depth of boring into the d) Hydrometer Moisture Content bedrock should be _______. a) 1.5 m c) 2.5 m 74._________ is the tolerance of mix in bituminous. b) 2.0 m d)3.0 m a) 10* C c) 15* C b) 12* C d) 18* C 64. Determine soil bearing capacity by loading a steel 75._________ Number of measurement taken in a plate usually30” diameter. core sample for thickness determination of the finish a) Vane shear test c) Pile load test asphalt pavement b) Plate bearing test d) None of the above a) 3 c) 5 b) 4 d) 8 65. How many hours do aggregate stockpile or binned for draining before being batch? 76. In the absence of beam mold in site, cylinder mold a) 1 hour c)12 hours is allowed by specification. What is the required b) 6 hours d) 24 hours strength?based on blue book 2004,not anymore 2013. a) 2,500 psi c) 3500psi 66. What is the relative strength of mortar at 7 & 28 b) 3,000 psi d) 4,000 psi days of fine aggregates, when tested for the effect of organic impurities, which is higher than the standard? a) not less than 90 % c) not less than 95 % b) not less than 80 % d) not less than 98 % 77. Prime coat shall be left undisturbed for at least b) Granular materials d) clayey materials _____ a) 6 hours c) 24 hours 88.________ a classification of soil which 35% or b) 12 hours more of the particles passthrough no. 200 sieve a) Course Sand Soil c) Silty-Clay Materials 78. The first phase of rolling the spread bituminous mix b) Granular Materials d) Clayey Materials is called breakdown rolling which is carried out by pneumatic roller, temperature requirement must 89.It evaluate the quality of soil as highway subgrade be _____. material. a) 200 – 225* F c) 160 – 180* F a) Atterberg Limit c) Group Index b) 190 – 199* F d)150 – 185* F b) Plasticity Index d) Liquid Limit 79. How many gradation ranges for hot plant mix 90.When soil has plasticity index value of 10, what is bituminous pavement are there in the blue book? the criteria of the material? a) 5 c) 7 a)Coarse grain c) Clayey b) 6 d) 8 b) Sandy d) Silty 80. What is the plasticity index of mineral filler? 91. When plasticity index is equal to 0 a)not greater than 4 c) not greater than 8 a) Coarse grain c) Clayey b) not greater than 6 d) zero b) Sandy d) Silty 81. If no core had been taken at the end of each day of operation and the project has already been completed, 92. _______ is an empirical number used in evaluation a core shall be taken ________. for G.I. a)for every 75 l.m,/lane c) for every 100 l.m/lane a) 0 – 15 c)0 – 20 b) for every 150 l.m/lane d) for every 1,000 l.m/lane b) 5 – 20 d) 0 – 25 82. ________ is the slump of workable concrete if 93.It indicates good subbase materials when G.I. is vibrated. equal to _____. a) 10 – 20 mm c) 40 – 50 mm a) 0 c) 10 b) 10 – 40 mm d) 40 – 75 mm b) 5 d) 20 83.________ Burnt product which is used by Gypsum 94.It indicates very poor subbase materials when G.I. and pulverized to form Portland cement. is equal to _____. a) Hydraulic cement c) Fly Ash a) 0 c) 10 b) Clinker d) Volcanic Ash b) 5 d)20 84.When group index = 0, what is the grade of soil? 95. ______ indicates the composition of soil. a) weak soil c) good soil a)Atterberg Limit c) Group Classification b) poor soil b) Plasticity Index 85.______ is a process of breaking down of rocks into 96.The higher the value of PI of the soil, the weaker small pieces of various sizes that can range from large will be the soilperformance as a _____. boulders to very small clay particles. a) True c) Depend a) Consolidation c) Weathering b) False d) None of the above b) Unconsolidation 97. _______ the Plasticity Index of group of silty,gravel 86.________ is the limit were further loss of water due and sandy soil to evaporation which will not result in reduction of a) 0 c)10 volume. b) 6 d) 11 a) Plastic limit c) Shrinkage limit b) Liquid limit 98. _______ is the minimum percent of A-6 group classification of soil. 87.________ a classification of soil which 35% or less a) 0 % c) 35 % the particles passthrough no. 200 sieve. b) 25 % d) 36 % a) Grain size soil c) Silty clay materials 99. _______ is the maximum of G.I. of Silty Clay 110. Mass percent loose for fine aggregates Materials when tested in Clay lumps is _____. a) 0 c)20 a) 0.10 c) 0.80 b) 25 d) 35 b) 0.25 d) 1.0 100.When the value of G.I. is negative, what will be 111._________ is a type of cement which shall be the soil performance? transferred to an elevated, air tight and weather proof a) Poor Subgrade c) Good subgrade bins storage. b) Very good subgrade d) None of the above a) Portland Cement c) Bulk Cement b) Pozzolan Cemenr d) None of the above 101.The weight of Sandy soil for Hydrometer Analysis is ______. 112.Scales for weighing aggregates and cement shall a) 10 grams c) 50 grams be accurate within _____. b) 25 grams d) 100 grams a) 0.1% c) 0.5% b) 0.25% d) 1.9% 102.The weight of Clayey or Silty soil for Hydrometer Analysis is ______ 113.The minimum thickness of conventional concrete.a) 10 grams c) 50 grams as the surface course in monolithic pavement is b) 25 grams d) 100 grams _____. a) 50 mm c) 100 mm 103. A 25 grams fine grained soil can be dried in about b) 75 mm d) 150 mm ______. a) 1 hour c) 3 hours 114._____________ determines the resistance of the b) 2 hours d) 4 hours emulsion to break when mixed with mineral aggregate. a) Viscosity Test c) Spot test 104.A 25 grams sandy soil can be dried in about b) Distillation Test d) Cement Mixing ______. a) 1 hour c) 3 hours 115._____________ is an instrument used for rapid in b) 2 hours d) 4 hours – site measurement of the structural properties of existing road pavement. 105.________ is a type of soil in which most of the soil a) Pundit Ultra Sonic Concrete Tester grains are of the samesize. b) Dynamic Core Penetrometer a) Poorly graded c) Gap graded c) Falling Weight Deflectometer b) Well graded d) Non of the above d) Core Test 106.The soil grained are force apart by the 116. How many days does the emulsified asphalt water added, thus the grain is reduced, what is the must be tested after delivery at temperature method used? 40*F(4.5*C). a) Lubrication c) Swelling a) 10 days c) 14 days b) Welting d) Saturation b) 12 days d) 16 days 107.Percent passing loose for coarse aggregates 117.In bituminous mixture asphalt content is 5 – 8% when tested for clay lump is _____. and 92 - 95%aggregates, what will be the amount of a) 0.1 masspercent c) 0.8 mass percent additives? b) 0.25 mass percent d) 1.0 mass percent a) not more than 2% c) more than 2% b) not more than 3% d) more than 4% 108.The mass percent passing loose for coarse aggregates when tested insoft fragment is ____. 118.___________ determines the effect of water on a) 0.10 c) 3.5 the cohesion of the mixture b) 0.25 d) 1.00 a) Stability Test c) Distillation b) Solubility d) Immersion-Compression Test 109.If slag is used, the density of coarse aggregate is ______. a) 30 – 100 kg/cu. m c)1,120 kg/cu. m 119. The distance of the sample by grooving before b) 150 kg /cu. m d) 1,400 kg/cu. M rotating the brass cup is _____. a) ¼” c) ¾” b)½” d) 1” percentage to be used is determined by the _Trial Mix_. 120. the most common method of assessing strength and stiffness of both subgrade and pavement is 130._Blue smoke_ is an indication that the _______. asphalt is over heated a) FDT c) SPT b) CBR d)Non of the above 131. The penetrator test is an indication of the _Consistency_ of the asphalt 121. How many days do the specimen for CBR soaked? 132._Marshall Stability Test_ is the most common a) 1 day c) 3 days used method in the design and evaluation of b) 2 days d) 4 days bituminous concrete mixes 122.When mixed at the site or a in central mixing plant, the mixing time shall not be 133._Extraction Test_ determines the asphalt content less than _50__ seconds nor more than _90_ seconds in the bituminous mixes. unless mixer performance test prove adequate mixing of the concrete in a shorter time period. 134. Cast in place concrete shall not be post- tensioned until at least _10_ days and until the 123. The batches shall be so charged into the drum compressive strength has reached the strength that a portion of the mixing water shall enter in specified advance of the cement and aggregate. The flow of water shall be uniform and all water should be in the 135.This is the characteristic generally used for drum by the end of the _15_ seconds of the mixing calculation of the volume occupied by the aggregate in period various mixture containing aggregates including Portland Cement concrete, bituminous concrete, and 124.The time elapsed from the time water is other mixtures that are proportioned or analyzed on an added to the mix until the concrete is deposited at the absolute volume basis.Answere: Bulk Specific site shall not exceed _90_ minutes when concrete is Gravity hauled in the truck. 136._Apparent Specific Gravity_ pertains to 125.When concrete is delivered in truck mixers, the relative density of the soil material making up the additional water maybe added to the batch and constituents particle not including the pore space additional mixing performed to increase the slump to within the particles that is accessible to water. meet the specified requirement if permitted by the Engineer, provided all these operation are performed 137.Weight of sandy soil needed for Hydrometer test within _45_ minutes after the initial mixing operation is _100 grams_ and the water and cement ratio is not exceeded 138.Weight of silty or clayey soil needed for 126.Concrete not placed within _90_ minutes from the Hydrometer test is _50 grams_ time the ingredients were charge into the mixing drum should not be use. 139. These are widely used to control the characteristics of soil which are to be incorporated in 127. The completed pavement shall be accepted on a roadway. Ans. Liquid and Plastic Limits lot basis. A lot shall be considered as _500_ linear meter double lane 140.This is defined as the highest moisture content of which the mass attainsits minimum volume but 128. Each lot shall be divided into _5_ equal segment continues to lose weight /mass. Ans. ShrinkageLimit and one core will be obtained from each segment in accordance with AASHTO T24. 141._Le Chattelier Flask___ is an apparatus used in determination of specific gravity of Hydraulic Cement. 129. Aggregate account for 92 – 142._Autoclave Machine_ is an equipment used 95% of the weight of the bituminous mix while in determination of soundness of Portland Cement asphalts for 5 – 8% of the weight of the mix. The exact 143.Asphalt shall be homogeneous, free from 157. ______ is the viscosity used to grade asphalt ce water, and shall not foam when heated to _175* ment. C(347* F)_ Ans.149F ( 60*C) 144._Cement Mixing Test of Asphalt_ 158.The coarse aggregate used in asphalt mix is ____ indicate the rate at which the asphalt emulsion will. break when mix with aggregate. Ans. Retained by2.36mm (no 8 sieve) 145.The lost in weight of rock used in gabions when 159.The application temperature of emulsified asphalt tested to sodium sulfate, soundness loss shall not range from ____. exceeds__9%__ Ans.10-71*C 146.Gabions dimensions are subject to 160. When the tar is used for seal coats, it shall be a tolerance limit of _+/- 3%_ heated to free flowing but not to exceed ___________. Ans. 149*C 147. The pour point of concrete joint sealer shall be at least 161._______ is used to determine the soil strength 11*C(20*F) lower than the safe heating temperature, parameter. which is the maximum temperature to which the Ans.Unconfined and Tri-Axial Compression Test material may be heated without exceeding the permitted flow. 162. ________ is used to determine the settlement characteristic of soil. 148. The penetration of concrete Ans.Consolidation joint sealer, Hot Poured Elastic Type shall not exceed_90_ 163.The weight of disturbed samples from hard auger or split spoon shall beat least__________ 149.The CBR is generally selected at _2.54 mm (0.10 Ans. 1.0 kg in)_ penetration. 164.The undisturbed samples from Shellby Tube shall 150. If the ratio at 5.08 mm (0.21 in ) penetration is be atleast______. greater,it should be _Rerun_ Ans.. 18” long 151. If the check test gives a similar result, the ratio at 165._______ determines the pile bearing capacity 5.08 mm penetration shall be__adopted or used__ by loading one or more piles and measuring settlement under load. 152. The penetration piston of CBR machine Ans. Pile Load Test should have a uniform penetration at a rate of __1.30 mm/min__ 166.________ determines the in-site shear strength of soft to medium clay. 153. During soaking maintain the water level in the Ans. Vane Shear Test mold and the soaking tank is approximately __25.40 mm ( 1.0 in )__ above the top of the specimen 167._______ determines the soil bearing capacity by loading a steel plate usually 30 inches in diameter. 154. Soak the specimen for _96 hours (4days) __ Ans. Plate Bearing Test 155. The diameter of penetration piston is ____. Ans. 168. Laboratory which measures, examines, calibrate 49.63 +/- 0.23mm (1935 cu m) or otherwise determine the characteristic or performance materials or products. Ans... Testing Laboratory 156.The temperature of the asphalt cement delivered 169. Standard technical procedure to determine one or to the mixer shall beas required to achieve a kinetic more specified characteristic of material product viscosity in the range of ______. is called___. Ans. 150 to 300 cu m/s or 150 to 300 centistokes Ans. Test Method 170. A document which pertains to the 180.This is an arbitrary measurement of consistency test results and other information relevant to test is and is the basis of classification of all solid and semi- called _____ solid asphalt. Ans... Test Report Ans.. Penetration Test of Asphalt 181. This is a process to measure the consistency of liquid asphaltic materials to determine their fluidity or resistance to flow. 171.__________ is a document signed by the Ans... Viscosity Test Director of BRS issued to Testing laboratory authorizing them to perform the required test inbehalf 182._________ was developed in order to differentiate of DPWH. bituminous materials with respect to hardening Ans. Certificate of Accreditation characteristic. Ans... Thin Film Oven Test 172. This test have been developed to measure the loss of cohesion as a result of water action on the 183. Plant-mixed bituminous mixtures should be compacted bituminous mixture. sampled in accordance with the Standard Method of Ans. Film Stripping & Immersion – Sampling Bituminous Mixture. A sample not less than Compression Test ______ kg is taken and place in sample bag that would insure against contamination. This is taken 173. This mean porosity or perviousness of the every 75 cu m or 130 tons of mix. mixture, a dense grade mix prevent water from Ans... 10 kgs entering the base through the surface. Ans.. Permeability 184. The bearing blocks of the compression machine should be at least _____ greater than the diameter of 174. This is used in classifying liquid asphalt into the specimen. grades. It is useful as a measure to control of Ans... 3.0 % consistency, particularly when run at the temperature of intended application Ans…Viscosity Test 185. The bottom bearing block shall be at least _____ thick 175. This test determines the total bitumen content of When new asphaltic materials, which is the actual cementing Ans. 1.0” (22.50 mm ) constituent of the asphalt. Ans.. Solubility Test 186. The bottom bearing block shall be at least _______ thick after anyresurfacing operations.. 176.This is an accelerated test to show the loss of Ans. 0.9” (22.50 mm ) volatiles when the sample is heated at 163*C for five hours and the loss due to volatilization is determined. 187. The curing temperature of a Ans… Loss on Heating specimen before testing is ______. Ans. 18*C to 24*C 177.This test classifies the different asphalt into types and the different types into grade. 188. The apparatus used to determine the flash point Ans.. Consistency Test of asphalticmaterial is called ____ Ans. Cleveland Open Cup 178.For liquid asphaltic materials, this test is run on the residue after distillation.. 189. The asphalt samples for ductility and penetration Ans.. Quality Test test should be subjected to water bath at a temperature of 25*C for ____. Ans... 11/2 hours 179.This is one of the most important engineering properties of soil. It is defined as its ability to resist 190.The concrete shall not be left exposed for more sliding along internal surface within the mass.. than ____ hour between stages of curing or during the Ans.. Shearing Strength of Soil curing period. Ans... ½ hour 191.The rate of application of bituminous prime coat a) 20-14 c) 0 – 6 is ____. b) 0 – 12 a) 1-2L/sq. m. c) 0.2-1.5L/sq. m. b) 0.2-0.7L/sq. m. d) 0.5-2L/sq. m. 202.The number of specimen samples in testing concrete hollow block is _____. 192.Another name for asphalt joint filler is_______. a) 6pcs./20,000 units (3 for absorption test and 3 for a) asphalt cement c) blown asphalt strength test ) b) rock asphalt d) cutback asphalt b) 4 pcs./20,000 units c) 8 pcs./20,000 units 193.In asphalting work, there are _______ phase of rolling 203.Is it really necessary to cure concrete specimen? a) 2 c)1 a) Yes c) No b) 3 d) 4 b) None of the two 194.The _____ test determines the asphalt content 204.The kind of test that determines the consistency of in the bituminous mix. concrete is _____. a) Grading c)Extraction a) Slump test c)Abrasion test b)Bulk Specific Gravity d) Absorption b) Specific Gravity 205.What is the dimension of concrete cylindrical sample? 195.In a bituminous mix, there are 3 kinds of a) 6” dia. And 12” high c) 8” dia. And 14 high aggregate. What kind of passes the no. 200 sieve? b) 4” dia and 8” high a) Coarse c) Mineral Filler 206.In the absence of concrete beam mold at the b) Fine d) Admixture project site, are concrete cylindrical molds allowed by the specification to be used in sampler for item 311 – PCCP? 196.Liquid asphalt is also called ___________. a) Yes a) Cutback asphalt c) Blown asphalt b) may be b) Emulsion d) Asphalt cement c) No 197.The different test for soil classification are: 207.The minimumpercent compaction for embankment a) compaction and FDT is _______. b) Hydrometer test and moisture content a) 92% b) 95%c) 97% c) Grading, LL and PL test 208.The minimum percent compaction for base 198.The apparatus/equipment used in the liquid limit of the road is ______ and plastic limit test iscalled___. a) 100% b)110%c) 105% a) Sieves and chisel c) mortar andpestle b) Atterberg Device and glass plate 209. The CBR value of aggregate base course is not less than ____. 199._________ is a method of laboratory sampling. a) 80% b) 90%c) 85% a) Mixing c) Proportioning b) Using mechanical splitter/quartering 210.The CBR value of aggregate subbase course is not less than ____. 200.In laboratory compaction test/moisture density a) 25% b)35%c) 30% relation test, what is the specification of rammer? a) 5.5 lb. (2.5 kg) with 12 in drop 211.The minimum compressive strength for class A b) 8 lb. (3.6 kg) in weight with 16 in drop concrete is ________. c) 10 lb. (4.5 kg) in weight with 18 in drop a) 3,000 psi. ( 20.7 MN/sq.m ) b)2,400 psi. ( 16.7 MN/sq. m. ) c) 5,000 psi. ( 37.7 MN/sq. m. ) 201. What is the specification of mass present passing in sieve 0.075 mm (No.200 ) grading “A” for aggregate 212.What is the significance of determination of base course. the tensile properties of reinforcing steel bars? a) This method is intended to determine the yield and tensile strength of the bar as well as its elongation, 222.The drying temperature of sample is ________ and is used to classify the bars into grade a) 110 +/- 5*C b) This method is intended to evaluate the ductile b) 100 +/- 5*C properties of the reinforcing bars c)100*C c) None of the above 223._______ is a solid asphalt which is a basic 213.A tie bar should be ______ constituent of all other asphalt called as hot asphalt or a) deformed bar b) round bar c) flat bar penetration grade asphalt. a) Asphalt Cement 214.A dowel bar should be ____________. b) Emulsified Asphalt a) deformed bar b) round bar c) flat bar c) Cutback Asphalt 215. The mortar for masonry shall consist of ________ 224.________ is a kind of liquid asphalt which is.a) one part Portland cement and 2 parts of sand a mixture of asphalt cement and kerosene. b) one part Portland Cement and 3 parts of sand a) Medium Curing Cutback c) one part Portland Cement and 4 parts of sand b) Asphalt Cement c) Rapid Curing Cutback 216. The apparatus used to measure the thickness or height of compacted bituminous paving mixture. 225.________ is a kind of liquid asphalt which is a a) Ruler b) Vernier Califer c) Steel Tape mixture of asphalt cement and oil. a) Slow Curing Cutback 217. It is used in calculating the unit weight of b) Emulsified Asphalt the mixture and the degree of compaction of the c) Blown Asphalt asphalt pavement. a) Bulk Specific Gravity of compacted bituminous mixtures using saturated surface dry specimen. 226.________ is a kind of liquid asphalt which is a b) Dry unit weight of compacted bituminous mixtures mixture of asphalt cement and gasoline c) Mass of specimen in water a) rapid Curing Cutback b) Blown Asphalt 218. The test which covers the quantitative c) Joint Filler determination of bitumen in hot-mixed paving mixtures and pavement samples for 227.Asphalt is defined as _________. specification acceptance,service evaluation, control an a) A petroleum product d research. b) A dark brown to black cementitious materials whose a) Extraction consistency range sfrom solid to semi-solid and whose b) Spot Test main constituent is called bitumen which is either c) Flash Point found in nature or as a residue in petroleum refining. c) None of the above 219.The solvent used in extraction of bitumen is _____. 228. It is a kind of liquid asphalt which is a mixture a) Diesel oil of asphalt cement and water with emulsified with b) Gasoline pungent odor. c) Water a) Emulsified Asphalt b) Asphalt Cement 220.The percent of bitumen content is computed c) Rapid Curing Asphalt based on ______. a) mass of raw sample 229. Joint filler in concrete pavement is a __________. b) mass of dry aggregate a) Blown Asphalt c)mass of asphalt b) Hot asphalt c) Liquid asphalt 221.The method used to determine the grading of aggregate extracted from bituminous mixture is ____. 230. A device used to measure the relative hardness a) Mechanical analysis of extracted aggregate of asphalt is __________. b) Stability Test a) Penetrometer c) Viscosity b) Spectometer c) Vicat Apparatus 240.____________ is a property of bituminous mixes in pavement to resist deformation or displacement due 231. A property of asphalt cement to stretch without to impose load or repeated loading. breaking iscalled________. a) Stability a) Ductility b)Flexibility b)Durability c)Tensile c)Tensile 241.____________ is a property of bituminous mixes 232.It is a point where the volatile components of in pavement to resist disintegration or deterioration asphalt will evaporate. due to the action of water, traffic and changing climate a) Fire Point a) Durability b) Flash Point b) Flexibility c) Center Point c)Ductility 233.It determines whether asphalt is over heated or 273. The minimum flexural strength requirement not during the process of manufacture. of beam sample when tested by third point a) Spot Test loading method is ____________. b) Boil Test a) 3.5 Mpa c) Extraction Test b) 3.8 Mpa c) 4.0 Mpa 234.An apparatus used to determine the specific gravity of asphalt is called ______. 274.The minimum flexural strength requirement a) Metal Pycnometer of beam sample when tested by midpoint method is b)Glass Pycnometer ____________. c) any bottle a) 4.5 Mpa b) 3.5 Mpa 235.Consistency test for asphalt is c) 5.0 Mpa called___________. a) Viscosity 275.____________ are additives used in mixing b) Slump test concrete. c)Loss in ting a) sodium chloride b) Admixtures 236.A process of c) curing agent volatilization test which measures the relative proportion of asphalt to oil. 276.____________ determines the consistency of a) Distillation concrete. b) Extraction a) Slump Test c) Float Test b) Consolidation test c) Viscosity 237. It is a period wherein the asphalt begins to melt. a) Softening Point 277. Equipment used in the consolidation of fresh b) Boiling Point concrete. c) Fire Point a) Jack hammer b) Vibrator 238.The sampling requirement of asphalt is _____. c) Drilling machine a) 1 sample for every 200 drums or 40 metric tons b) 1 sample for every 100 drums 278. The prescribed forms to be used in concrete c) 1 sample for every shipment paving is called ____________ a) steel forms 239.The component of bituminous mixes which b) Wooden range from 92 to 96%is called __________. c) Combination of steel and wood a) Bituminous Blended Aggregate b) Concrete Aggregate 279. The initial setting time of c) Sand Portland cement is not less than _________________. a) 30min. b) 45min. a) first seven days c) 90 min. b) first 10 days c) 28 days 280.The final setting time of Portland cement Type I is _____________. 289.The standard dimension of concrete cylindrical a) 6.25hrs. sample is ___________. b) 24 hrs. a) 6” dia. and 12” tall c) 36 hrs. b)6” dia. and 6” tall c) 6” dia. and 8” tall 281.The standard sand used in testing the mortar strength of Portlandcement is called __________. 290.There are two layers in performing sampling of a) Ottawa Sand beam samples. How many numbers of blows are b) Beach Sand required per layer? c) River Sand a) 63 blows b) 75 blows 282.The apparatus used in determining the fineness of c) 50 blows Portland cement by air permeability is __________. a) Blaine Air Permeability Apparatus 291.There are three layers in performing sampling of b) Sieve No. 200 concrete cylinder. How many blows are required per c) Gillmore layer? a) 25 blows 283.A mixture of cement and water is called b) 30 blows ____________. c ) 35 blows a) cement paste b) mortar paste 292.The formula which determines the proportion of c)concrete paste the mix which can meet the desired strength requirement of concrete is called____________. 284.The apparatus used to determine the a) design of concrete mix initial and final setting of cement in the laboratory b) Boyle’s Formula is _________. c) Bernouli’s Formula a) Gillmore needles b) Bailey needle 293.The minimum testing requirement for c) Vicat apparatus every project is indicated in a duly approved________. 285.The compressive strength of cement mortar a) Quality Control Program sample in sevendays is not less than _________. b) Program of Work a) 19.3 MN/sq. m c) Work Schedule b) 20 MN/sq. m c) 24 MN/sq. m 294.It is prescribed in each project based on estimated quantities and specifies the kind and number of test for 286.What each item of work. is the appearance of the molded cement paste which f a) Minimum number of work ails to meet the autoclave b) Minimum Testing Requirements expansion.______________. c) Work Schedule a) Crumble b) Shiny 295. Embankment materials delivered at the job site c) Changes color was about 12,000 cu. m. The minimum test requirement calls for 1 – G, P, C for every 1,500 cu. m. 287.The dimension of beam sample for paving a) 10 – G, P, C concrete is ___________. b) 8 – G, P, C a) 6” x 6” x 21” c) 6 – G, P, C b) 6” x 6” x 24” c) 4” x 4”x218” 296. There is 1 – Q cement required for every _________________. 288.The critical number of days of curing concrete a) 4,000 bags or fraction thereof is ____________. b) 2,000 bags or fraction thereof c) 10,000 bags 305. The minimum test requirement for paint is ______________. 297.There is – Q of rein.steel required for a) 1 – sample for every 100 cans or fraction thereof every ____________________. b) 1 – sample for every 50 cans or fraction thereof a) 20,000 kg or fraction thereof c) Mill Certificate b) 10,000 kg or fraction thereof c)115,000 kg or fraction thereof 306. The minimum test requirement for water used in concrete for a questionable source is ______. 298.How many set of beam samples taken for every a)P.E. Certificate 75 cu. m. of concretepoured per day? b) 1 – Quality Test a)one ( 1 ) set c) Inspection Report b) two ( 2 ) sets c)three ( 3 ) sets 307. Based on the maximum dry density obtained by laboratory test, the degree of compaction required for 299.In a completed pavement, what is the aggregate subbase should be at minimum core samples required before payment is least _______________________. effected? (Assuming that the thickness is23 cm. ) a) 95% a) Fiveholes per km per lane b) One hole per 500m c) 100% c) P.E. b) 98% Certificate d) None of the above 300.In a Barangay road, what is the minimum 308.Per our present Specification for requirement for thickness determination of its Highways and Bridges including amendments, it is completed pavement? mandatory to open PCCP to traffic not later a) Five holes per km per lane than ___________. b) P.E. Certificate c)One hole a) 7days after pouring b) 21 days after pouring 301.A quality test is one of the minimum c) 14 days after pouring requirement for item 200 –aggregate subbase course. d) 28 days after pouring a) True b)False 309. In casting reinforced c)optional concrete railings, the concrete used is _____________. 302.There is no CBR test for item 300 – aggregate a) ClassA1 c) Class C1 surface course. b) Class A2 d) any of the preceding classes a) True b) False 310.For efficient compaction, the embankment c) optional materials should at the timeof rolling be ______. a)dry c) at optimum moisture content 303.In item 311 and b) wet d) at maximum moisture content 405, grading is perform _______________. a) for every 75 cu. m. b) for every 300 cu. m. 311.For a road base course the most preferable c) none material is one with CBR of ____________. a) 60 c) 50 304.For pipe culverts and storm drains, the minimum b) 30 d) 80 test is 1 – Pipe for every 50 pipes. What is the alternative requirement? 312.Peat and muck are ______________. a) 1 – set consisting of 3 concrete cylinder a) fair subgrade spoil c) unsuitable soil samples for not more than25 pipes cast in the field b) stable soil d) good subgrade soil and 1 – inspection report for each size for not more than 25 pipes cast in the field. 313The slump test on concrete is a measure _______ b) Inspection report is enough _______ c) Mill Certificate a) strength c) consistency b) unit weight d) durability 314.The fineness modulus is highest of ____________ 324.In casting of reinforced concrete pile, the concrete _____. used is ____________. a) fine sand c) very coarse sand a) A1 c) C1 b) very fine sand d) coarse sand b) D d) C2 315.If concrete is continuously moist cured, it will gain 325.The natural water content of highly organic soil is strength beyond 180 days. __________. a) True c) it depends on curing temperature a) less than 20 c) between 50 and 100 b) False b) between 20 and 50 d) more than 100% 316.The quality of paving concrete is usually 326. Which of the following dead load is equivalent for measured by its _____________. loose sand, earth and gravel fill? a) compressive c) flexural a) 2,403tons/cu. m. c) 1,603 tons/cu. m. b) tensile d) bond strength b) 1,922 tons/cu. m. d) 2,150 tons/cu. m. 317.Generally speaking, batching of 327.Rate of application for curing compound concrete aggregates by volume is preferable than is _______________. weight. a) 0.30 li/sq. m. c) 0.15 li/sq. m. a) True c) False b) 0.20 li/sq. m. d) 0.10 li/sq. m. b) they are the same 328.During coring of completed pavement, how 318.If angular coarse aggregate is used in a concrete many cores /km/lane is required as per specification? mix, it will require more ________________ a) 4 c) 6 a) water c) water and fine aggregates b) 5 d) 7 b) fine aggregates d) neither a and b 329.What is the correct proportion for concrete 319.The most favorable period for curing concrete is masonry work? ______________. a) 1: 2 c) 1: 4 a) during the first few days or week b) 1: 3 d) 1 : 5 b) after 3 days c) after one week 330.The opening of No. 4 sieve is bigger than the d) before 28 days opening of a ¼sieve. a) true 320.Lower water content ratio in concrete mixes b)false improves ________________. c) they are the same a) strength c) water tightness b) durability d) all of the preceding 331.The standard compaction test on predominantly fine grained soils is performed on soil fraction passing sieve no. ___________ a) 200 c) 16 321.When concrete must be placed in a sloping b) 40 d) 4 surface, placing should startat the __________. a) bottom c) can be top or bottom 332.Which plasticity index would you prefer for the bas b) top e course of PCCP? a) less than 6 c) 10 to 12 322.The maximum percent abrasion loss allowed for b)6 to 9 d) more than 12. concrete coarse aggregate is __________. 333.A soil which is classified A-7 by the highway a) 30% c) 45% research board method will have a subgrade rating b) 40% d) 50% of __________. a) excellent c) fair 323. The plasticity index of aggregate base course b) good d) poor should be not greater than ___________. a) 6 c)10 334.The empirical number used in design is b) 8 d) 12 ____________. a) Plasticity index  b) Group index 345.Soil is fully saturated if the water content is c) Both of the preceding ______________. a) at optimum amount c) more than 100&% 335. Soil is fully saturated at optimum moisture b) 100% d) none of the peceeding content. a) True 346.The density to which a soil can be compacted b) False is related to ____________. c) It depends on void ratio a) compactive effort c) both a and b b)water content d) neither a or b 336. Water content of soil is generally base on ____________. 347.Specification require 1 quality test a) total weight of soil c) weight of solids every ___________ of asphaltmix. b) total volume of soil d) unit weight test a) 40 ton c) 50 tons b) 130 tons d) 150 tons 337. Optimum water content of soil is determined by ______________. 348.All asphalt are _______, a) field density test c) compaction test they became harder as temperature decreases b) liquid limit test d) unit weight test and softer as their temperature increases. a) Thermoplastic c) brittle 338.The particle size distribution of soil is determined b) Hydrophobic d) none of the above by __________________. a) liquid limit granular c) sieve analysis test 349.The viscosity of the asphalt during mixing and lay b) plastic limit test d) any of the preceding test down is ____________. a) Viscosity at 135*C c) viscosity at 60*C 339. Which of the following are most suitable for b) Viscosity at 125*C d) viscosity at 163*C construction of highway embankments? a) granular c) plastic 350.The trial section for compaction for each type of fill b) fine- grained d) clayey materials andtype of equipment to be used in the work should have an areaof__________. 340.The particle size distribution of sandy gravel is a)500 sq. m. c) 600 sq. m. b) 335 sq. m. determined by ________. d) 400 sq. m. a) hydrometer test c) dilantacy test b) sieve test d) any of the preceding test 351.Control slip shall have an area of approximately ____________. 341.The best soil for a road subgrade would behave a) 500 sq. m. c) 600 sq. m. a group index of ___________ b) 335 sq. m. d) 400 sq. m. a) less than3 c) 11 to 15 b) 5 to 10 d) 16 to 20 352.Fine aggregate used in asphalt mix is the one ________________. 342.The highest moisture content in the plastic state of a) passing the no. 8 sieve fine grained soil isthe ___________. b) passing the no. 30 sieve a) liquid limit b) plastic limit c) passing the no. 200 sieve d) returned the no. 8 sieve 343.Which of the following is characterizes unsuitable materials? 353.The corrugation produce a) soil with liquid limit exceeding 80 by brooming is _____________. b) plasticity index exceeding 55 a) 1.5 mm. c) 2.5 mm. c) soil with natural water content exceeding 100% b) 2.0 mm. d) 1.0 mm. d) all of the above 354.The higher the ________, the higher 344.Shringkage factor test is _______________. the penetration. a) test to determine pay volume a) specific gravity c) durability b) test to determine strength characteristic b) viscosity d) solubility c) test to determine volume change d) test to determine maximum density 355.The required thickness of the thermoplastic paint in PCCP is __________. a) 3.2 to 4.8 mm. c) 3.3 to 3.8 mm. b) 3.0 to 4.5 mm. d) 3.2 to 4.0 mm 364.What is the basis for rejection or acceptance of any construction materials? 356.What percent of hydrated lime shall be added to a) Certificate of Billingc) Statement of work accomplis the mixture during mixing operation of asphalt mix? hed a) 0.5 to 1.0 mass % c) 0.75 to 1.2 mass %. b)Materials Test Report d) none of the abcve b) 1.0 to 1.5 mass % d) 0.2 to 0.7 mass % 365. Initial rolling of bituminous mixes shall be 357.As Materials Engineer, what performed with a ______ roller. would you recommend in order to check the suitability a) Vibrator c) sheep foot and efficiency of the equipment to used prior to b) Pneumatic d) none of the above subbase construction for item 310, Bituminous Concrete Surface Course? 366.In bituminous mix sample, what is the % a) make a trial section c) make trial mix of asphalt by a) weight of aggregate and by b) weight b) establish control strips d) none of the above of mix? Given the following data:Weight of dry aggregates (after extraction) = 950 grams: Weight of Mix = 1010. 358. Quality of factor – produced reinforced concrete A. pipes may be best established through what? a) 6.32% a)compressive strength test b)5.50% b) flexural strength test c) 6.0% c) core test d) none of the above d) crushing strength test B. a) 5.50% b) 6.32% c) 6.0% d) 5.94% 367.What grade of asphalt has a penetration grade of 359.Result of Immersion – Compression 0 – 30? test conducted on a bituminous mix sample are as a) emulsified asphalt c) blown asphalt follow: Dry stability = 2,000 Kpa, Wet stability = 1,000 b) asphalt cement d) none of the above Kpa,What is the resulting Index of Retained Strength? a) 60% c) 50% 368.Problems regarding quality of construction b) 55% d) 70% materials shall be reported directly by the Contractor’s Materials Engineer to the ____________. 360.In DPWH Contract Projects, Quality Control is the a) DPWH Materials Engineer sole responsibility of ___________. c) Contractor’s Project Engineer a) the DPWH project personnel b) Contractor d) none of the above b) the government’s Materials Engineer c) the Contractor 369.If the RC pipes in the forgoing problem is not cast in the field, how many pipes will be required to be 361.As Materials Engineer, when is the right time subjected to the Crushing Strength test? to start sampling and testing of materials to be a) 75 pcs. incorporated into the work? b) 70 pcs. a) before final payment c) 50 pcs b) before start of work items c) before first partial payment 370.How many concrete cylinder samples are required for 3,500 pcs. of reinforced concrete pipes? 362.The Spot Test on asphalt is used to determine a) 14 sets of 3 c) 75 sets of 3 what? b) 140 sets of 3 d) none of the above a) Cleanliness c) safe working temperature b)overheating duringmanufacture 371. What is the bitumen obtained from the d) viscosity of the mix distillation coal or wood? a) rock asphalt c) emulsion 363.Underwhat climate b) tar d) none of the above conditions do we use higher penetration grade asphalt cement? 372.How do you reduce the viscosity of Medium – a) hot climate c) cold climate Curing Cutback Asphalt? b)rainy weather d) none of the above By mixing it with _______. a) gasoline c) kerosene 382.When is the completed asphalt pavement opened b) diesel d) emulsion to traffic? a) when the asphalt has cooled to atmospheric 373.What establish the exact percent of aggregates temperature and asphalt content in abituminous mix _______. b) when the asphalt has cooled to +/- 10*C of the a) design mix c) job mix formula spreading temperature b) job order d) extraction formula c) when asphalt is still hot 374.What greatly influence the serviceability of an 383.The apparatus used in determining the asphalt pavement? consistency of asphalt cement is ___________. a) quality of aggregates and climate a) penetrometer b) penetration grade and quantity of asphalt b) Viscometer c) density and compaction of completed pavement c)thermometer 375.In asphalt pavement 384.How is the consistency of liquid asphalt construction, how is the surface level of the determined? completed pavement check? a) viscometer a) by T – core test b) Tag open cup b) bydensity test c) penetrometer c) by the use of 3 meter straight edge 385.The Optimum Asphalt Content obtained in 376.What primarily influence the grade of asphalt to be Marshall Stability Test is the average asphalt content selected? of the Maximum Stability, Maximum Bulk Specific a) penetration c) climate Gravity, and _________________. a) 4% Air Voids b) class of aggregate d) temperature b) 2 mm flow c) 5% mineral content 377.Who will approve the Job Mix Formula? a) DPWH Project/Materials Engineer 386.What test determines the safe working b) Contractor temperature of the asphalt? c) Contractor’s Materials Engineer a) Ductility test b) Flash Point Test 378.What control c) Stability Test during the mixing and compaction of the bituminous pavement is of great significance in the resulting 387._________________ are usually tested for extract pavement? ion. a) Compaction c) grading of aggregates. a) Asphalt Mixes b) Density d) temperature b) emulsions c) asphalt cement 379. In asphalt pavement construction, there are three phases of rolling; what 388.Steel bars for the concrete reinforcement are kind of roller is required to be used for the final tested for their __________ properties. compaction and smoothing?. a) tensile and bending a) pneumatic roller b) compressive b) sheep foot roller c) crushing c) tandem- smooth wheeled roller. 389.What method is used in determining the 380.What is the maximum speed of the roller in strength of concrete pipes? compaction of asphalt pavement? a) third point loading method a) 4 kph c) 8kph b) center point loading method b)5 kph d) 6 kph c) three edge bearing method 381. What shall be checked after final rolling? 390.How many units shall be tested for strength, a) Degree of compaction b) optimum asphalt content c moisture and absorption in a lot of 120,000 CHB )quantity of aggregates Ans.. 18 units 391.For 250 gallons of Reflectorized Traffic Paint, how Ans.. Non volatile material many samples are required to be submitted for Quality Testing? 403.___________ consist of beads of good quality, a) 3 samples optically clear, lead free glass with not less than 90% b) 2 samples reasonably spherical and free from flows. c) 4 samples Ans. Ballotini for reflective road paint 392.The bituminous mix should have a mass % 404.___________ is a reflector which shall be of air voids within the range of __________. the short base type having a maximum base area of a) 2 to 3% 180 mm x 140 mm. b) 1 to 4% Ans. Flash surface reflective stud c) 3 to 5% 405.The pads shall be highly resilient and durable 393.Traffic paint shall be applied to the pavement at rubber reinforced with canvas and shall have a design the rate of 0.33li/sq. m. and shall dry sufficiently to be life of at least ____________. free it from cracking from ___________.. Ans. Five ( 5 ) years Ans. 150to 30mins. 406.The reflectors shall have the minimum specific 394.This is the only class of riprap that may consist of intensity value expressed as ______ of illumination. round natural stones. Ans.. Class A Riprap Ans.. Candle power per foot candle 395.The surface of riprap shall not vary 407.The reflector shall support a vertical load from the theoretical surface by more than _________ of _____ when tested. mm. ay any point. Ans. 10 KN Ans.. 100 mm. 408.When raised profile type reflector are 396.Fine aggregates of masonry shall all passes the _ specified the approved _______ epoxy adhesive shall _______ mm.sieve. be used.Ans. Two ( 2 ) parts Ans.. 2.36 mm (No. 8 sieve ) 409.Expansion joint filler having a nominal thickness of 397.Mortar that is not used within ______ minutes less than ________ mm. shall not be subject to a after the water has-been added shall be discarded. requirement for water absorption. Ans. 90 minutes Ans. 9.5 mm 398.Maximum projection of rock faces beyond the 410.Expansion joint filler having a pitch lines shall not be more than _____. nominal thickness of less than ________ mm. shall not Ans.. 50 mm. be subject to a requirement for compaction. Ans.. 13 mm. 399.In hot or dry weather, the masonry shall be satisfactory protected from the sun and shall be kept 411.Strip of the joint filler that do not conform to the wet for a period at least _________ after completion. specified dimension within the permissible variation of Ans.. Three ( 3 ) days ______ mm. thickness ________ in depth shall be reflected. 400.For pavement markings, the composition of white Ans. +/- 1.6 to – 0 thickness ; +/- 3mm. in depth paint shall be _______ pigment and ______% of vehicle 412.These are finely divided residue that result Ans.. 42 – 45 % pigment ; 53 –55% vehicle from the combustion of ground or powdered coal. Ans. Fly Ash 401.The composition of yellow paint shall be _______ pigment and ______ vehicle. 413.A light spray application of asphalt to an existing Ans.. 23% pigment and 77% vehicle pavement as a seal to inhibit raveling, or seal the surface or both. 402.The __________ material shall be of such quality Ans.. Fog Seal that it will not darken or become yellow when a thin section is exposed to sunlight. 414.A light application of bituminous 424.___________ is a spray application of bituminous material for the express purpose of laying and bonding material used to temporarily stabilize a recently loose dust. seeded area. The bituminous material can be applied Ans.. Dust Binder to the soil or to a straw or hay mulch as a tie down. Ans. Mulch treatment 415.The aggregate that is graded from the 425.___________ is a combination of bituminous maximum size, down to and including filler, with the material and aggregate that isphysically mixed by object of obtaining a bituminous mix with a controlled mechanical means, spread on the job site void content and high stability is called. andcompacted. Ans.Dense – graded aggregate Ans. BituminousAggregate Mixtures 416.The bituminous material used to fill and seal cracks in existingpavement is called______. 426.__________ is a combination of Ans. Crack filler bituminous material and mineral aggregate applied at ambient temperature for use in patching 417.The application of sprayed bituminous coatings holes,depression and distress area in existing paveme not involving theuse of aggregate is called_____. nt. Ans. Bituminous application Ans.Maintenance Mix 418.A mixture of bituminous material and mineral 427.__________ is a pavement construction using aggregate usuallyprepared in a conventional hot – mix essentially one-sizeaggregate which penetrated in plant or drum mixer at atemperature of not more than place by an application of highviscosity bituminous ______ and spread and compacted at the job site at a material followed by an application of smallersize temperature above _______. course aggregate and thoroughly rolled, Ans. 260*F (127*C)/200*F (93*C Ans. Penetration Macadam 419.__________ is an application of low viscosity 428.The glass beads used in traffic paint shall have bituminous material to an absorptive surface designed a minimum of ______ % true spheres. to penetrate, bond, and stabilize this existing surface Ans. 70% and to promote adhesion between it and the new super-impose construction. 429.The glass beads shall have a minimum refractive Ans. PrimeCoat index of ______..Ans. 1.50 420. A uniform application of a mixture of emulsified asphalt, fine aggregate,mineral filler, and water to 430.The white thermoplastic an existing pavement , single or material shall not exceed a yellowish index of ______. multipleapplication may be used. Ans. 0.12 Ans. Slurry Seal 431.The thermoplastic material shall have a maximum 421._____________ is an application of bituminous percent residue of _____ after heating at 8 +/- 0.5 material applied for an existing, relatively non- hours at 218 +/- 2*C absorbent surface to provide a thorough Ans. 28% bondbetween old and new surfacing. Ans. Tack Coat 432.The softening point of thermoplastic paint should be _______. 422.____________ is a bituminous aggregate Ans. 102.5+/-9.5*C. application to any type of road or pavement surface for the purpose of providing a wearing course, or surface 433.What kind of water shall be used in laboratory seal or both. test especially if itdeals with chemical? Ans. Treatment and Seals Ans. Distilled Water 423.___________ is a bituminous-sand application to 434.Liquid limit brass cup with a sample is raised and an existing pavement to seal the surface and to allowed to dropsharply on the base through a height of function as a light – wearing course. what? Ans. Sand Seal Ans. 10 mm. 435.How many rotation per second will the crank of a li 444.If the soil is properly compacted at MDD it will quid limitdevice be rotated? __________. Ans. 2 rotation per seconds a) increase stability/strength b) minimize future settlement 436. What is the required size of calibrated sand used c) decrease permeability for FDT ? d) all of the above Ans. Any clean, dry, free- flowing, uncemented and passing # 10 andretained # 200 sieve 445.Asphalt construction, compaction must be completed before themixture cools 437.What is the degree of compaction of soil having to _______. a maximum dry densityof 2,250 kg/cu. m. and wet a) 165*F ( 60*C ) c) 185*F ( 71*C ) density of soil from hole is equivalent to 2,335kg/cu. m. b) 175*F ( 65*C ) d) 195*F ( 76*C ) and average moisture content of 8.85%? Ans. 446.Which contractor are required by DPWH to own % degree of compaction = (dry density/Max. dry the minimum material testing equipment for pre- density ) x 100= qualification purposes? [2,335/(1+8.85/100)] / 2,250 x 100= a) small c) large ( 2,145.15/2,250 ) x 100= 9.34% b) medium d) all of the above 438.What is the standard diameter of an orifice in FDT 447.As percent asphalt increases in sand cone? Marshall stability test, the % Air voids____________. Ans. ½” ( 12.7 mm ) a) increases c) remains constant b)decreases d) a or b 439.Soil properties can be improved by ____________. 448.The aggregate component contribute to shear a) Adequate compaction c) Maximizing water content strength and stability of bituminous mixture. The b) Additional binder d) Stabilization desirable shape and surface texture of aggregate is _________. 440.As construction progresses, you noticed that a) round and smooth surface c) round and rough the materials delivered at the project site are different texture from the one tested and passed the requirement, as b) angular and smooth surfaced) angular and rough Materials Engineer what would you do? texture a) Authorize the use of the materials b) Conduct immediate retesting of the materials for 449. You can classify a soil sample in accordance to verification purposes AASHTO through _________. c) Reject materials a) Grain size analysisc) both a and b d) Replace the materials b) Atterberglimit d) none of the above 441.What is the test criteria for RCPC test with three ( 3 ) Edge Bearing Test? 450.Who should take samples of materials and bring a) 0.3 mm. c) 0.5 mm. them to the laboratory for acceptance purposes?. b) 0.4 mm. d) 0.6 mm. a) DPWH Materials Engineer c) Contractor’s Project Engineer 442.The Immersion – Compression test is prepared to b) Contractor’s Materials Engineer determine_________. d) DPWH Project Engineer a) ductility c) stability b) solubility d) flexibility 443.The use of sea water in reinforced concrete 451.How do you determine the diameter of RSB? is not allowed due to ____________. a) by Vernier Caliper b) by unit weight a) no effect b) cause of reduction in ultimate strength of concrete 452.Cement which has been in storage for so c) induce corrosion of R.S.B long period that there isalready doubt as to its d) b and c quality should be _____________. a) retested prior to use c) authorized to use b) not to used  b) 800 psi d) 1,200 psi 453.In abrasion test, a sample of 5,000 grams was subjected to abrasion, a2,000 grams sample was 463.The surface condition of tack coat before the next retained in no. 12 sieve after washing, what is the course should be applied is _______. abrasion loss? a) wet c)dry a) 50c) 60 b) sticky d) plastic b) 40d) 30 464.The contractor shall give the Engineer at least 454.Different brand of cement should not be allowed _______ days notice prior to the beginning of work at because _____________. the mill or shop where the metal structure has been manufactured or fabricated, so that the required a) different in texture c) varies in strength inspection may be made. b) different in color when dried a) 14 c) 21 b) 17 d) 15 455.An apparatus used for field density test is called ___________. 465.The request for recoring shall be made by the a) Sand cone c) Nuclear density meterb) Rubber ballo contractor within _________ weeks after the official on d) all of the above result of the coring test has been released if the structure failed to meet strength requirement. 456.Thickness tolerance in the construction of sub- a) one ( 1 ) c) three ( 3 ) base course is ____________. b) two ( 2 ) d) four ( 4 ) a) +/- 10 mm. c) +/-5 mm. b) +/- 20 mm.d) +/- 15 mm. 466.A revised design strength for concrete works was set forth from 14 daysto 7 days for concrete pavement 457.PH value of water used in concrete is for national roads and _____ days for major ___________. interchanges and busy intersection thus minimizing a) 4 to 6 c) 6 to 10 occurrence of roadcongestion. b) 6 to 8 d) 3 to 5 a) seven( 7 ) c) six ( 6 ) b) three ( 3 ) d) four ( 4 ) 458.In what item of work emulsified asphalt and cut back asphaltused? 467.Compressive strength for mortar samples test at a) Tack Coatc) Seal Coat 3 days and 7 sevendays can be considered for b)Prime Coat acceptance provided the strength of the samplesat 7 d) Bituminous Surface Course Hot-Laid days is not less than ________ Mpa which is 85% of the compressivestrength for 28 days 459.What is the boundary between Coarse and Fine a) 22.08 c) 23.45 aggregates usedin concreting. b)24.84 d) 21.53 a) passing No. 3/8 sievec) passing No. 6 sieve b)passing No. 4 sieve d) passing No. 8 sieve 460.The purpose of trial section is to check 468.The use of Fly Ash concrete mix as mineral ___________________. admixture in PCCP and as ______ % replaces the a) the suitability of materials Portland cement in concrete mix