RSMSSB-JE Civil (B.Tech) Paper Solution (06 December 2020) PDF

1 RSMSSB Paper ZONE TECH CH TE E N ZO 5 RSMSSB Paper ZONE TECH CH TE E N ZO  6 RSMSSB Paper ZONE TECH...

1 RSMSSB Paper ZONE TECH CH TE E N ZO 5 RSMSSB Paper ZONE TECH CH TE E N ZO  6 RSMSSB Paper ZONE TECH Technical Questions 41. Emulsion paint contain 47. The direction of the magnetic meridian is (a) Nitro cotton (b) Zinc white established at each traverse station and the direction of the line is determined with (c) White lead (d) Poly vinyl acetate reference to the magnetic meridian, this method of traversing is known as 42. Find the surface tension in soap bubble of (a) Fixed needle method 40 mm diameter when the inside pressure (b) Loose needle method is 2.5 N/m2 above atmospheric pressure. (c) Fast needle method (a) 0.0125 N/m (b) 0.0064 N/m (d) Bearing method CH (c) 0.860 N/m (d) 1.265 N/m 48. The material of a rubber balloon has 43. If the reduced level of a benchmark is 101.00 Poisson's ratio of 0.5. If uniform pressure is m. The back sight reading is 1.215 m and applied to blow the balloon, the volumetric the fore sight is 1.810 m, the reduced level strain of the material will be of the forward station is (a) Zero (b) 0.20 (a) 99.605 m (b) 100.405 m (c) 0.25 (d) 0.50 (c) 104.025 m (d) 104.305 m TE 44. Agonic line is the line joining points having 49. The point of contraflexure is a point where (a) Shear force changes sign declination. (b) Bending moment changes sign (a) Zero Declination (c) Shear force is maximum (b) Minimum Declination (d) Bending moment is maximum (c) Maximum Declination E (d) Same Declination 50. According to Lacey's theory, the silt supporting eddies are generated from (a) Bottom of channel only N 45. Two closed coil springs of stiffness s and (b) Sides of channel only 2s are arranged in series in one case and in parallel in other case. The ratio of stiffness (c) Bottom as well as sides of channel of springs connected in series to parallel is (d) None of these ZO (a) 1/3 (b) 1/6 (c) 2/9 (d) 2/3 51. Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey's theory will be 46. If the height of the hydraulic gradient line (a) 19 m (b) 38 m above the floor of thickness t is h and the specfic gravity of the material of the floor is (c) 57 m (d) 76 m G, the minimum thickness t of the floor down stream of the crest wall, is given by 52. The relation between duty D in hectares/ the equation cumec, depth of water  in metres and base period B in days is given by h1 h1 (a) t= (b) t= 1.98B 8.64B Gt Gt (a)  (b)  D D h1 h1 (c) t= (d) t= 5.68B 8.64D G Gt (c)  (d)  D B  7 RSMSSB Paper ZONE TECH 53. Which of the following is the correct ratio 61. Bearing stiffner in a plate girder is used to of refraction correction to curvature (a) Transfer the load from the top flange to correction? the botton one (a) 1/4 (b) 1/6 (b) Decrease the effective depth of web (c) 1/7 (d) 1/9 (c) Prevent buckling of web (d) Prevent excessive deflection 54. What is the whole circle bearing of a quadrant bearing N15°28'W? 62. The percentage of minimum reinforcement (a) 195°28' (b) 164°32' should be of the gross sectional area in (c) 344°32' (d) 344°28' slabs is (a) 0.001 (b) 0.0012 55. The angle between the true meridian and (c) 0.0015 (d) 0.0018 CH the magnetic meridian at the time of observations is known as: 63. For M150 mix concrete, according to I.S. (a) Dip specifications local band stress is (b) Bearing angle (a) 5 kg/cm2 (b) 15 kg/cm2 (c) Magnetic bearing (c) 10 kg/cm 2 (d) 20 kg/cm2 (d) Magnetic declination 64. A symmetrical parabolic arch of span 19 m and parallel curves_______is used in AutoCAD. TE 56. To obtain parallel lines, concentric circles and rise 4 m is hinged at the springings. It supports a uniformly distributed load of 1.5 tonnes per meter run of the span. The (a) Array (b) Fillet horizontal thrust in tonnes at each of the (c) Copy (d) Offset springing is (a) Zero (b) 20.63 57. Which mode allows the user to draw 90° (c) 16.92 (d) 8.5 straight lines in AutoCAD? E (a) Osnap (b) Ortho 65. If in a concrete mix the fineness modulus (c) Linear (d) Polar tracking of coarse aggregate is 7.6, the fineness modulus of fine aggregate is 2.8 and the N 58. In brick masonary the bond produced by economical value of the fineness modulus laying alternate headers and stretchers in of combined aggregate is 6.4, then the each course is known as proportion of fine aggregate is (a) English bond (a) 25% (b) 33.33% ZO (b) Double Flemish bond (c) 50% (d) 66.67% (c) Zigzag bond (d) Single Flemish bond 66. The field capacity of a soil is 25%, its permanent wilting point is 15% and specific 59. Crushing strength of a good building stone dry unit weight is 1.5. If the depth of root should be more than zone of a crop is 80 cm, then the storage (a) 50 MPa (b) 100 MPa capacity of the soil is (c) 150 MPa (d) 200 MPa (a) 8 cm (b) 10 cm (c) 12 cm (d) 14 cm 60. Economical depth of a plate girder corresponds to 67. In column analogy, the area of an analogous (a) Minimum weight column for a fixed beam of span 'L' and flexural rigidity 'EI' is taken as: (b) Minimum depth (a) L/EI (b) L/2EI (c) Maximum weight (c) L/3EI (d) L/4EI (d) Minimum thickness of web  8 RSMSSB Paper ZONE TECH 68. A fixed beam AB of span L, is subjected to 75. Inorganic soil with low compressibility is a clockwise moment at a distance 'a' from presented by end A. Fixed end moment at end A will be (a) MH (b) SL M M (c) ML (d) CH (a) L  a L  3a  (b) L  a L2 L2 76. The maximum particle size for which M M Darcy's law is applicable (c) 2  L  a  (d) 2  L  3a  2L 3L (a) 0.2 mm (b) 0.4 mm (c) 0.5 mm (d) 1.2 mm 69. A simply supported rectangular beam of span 'L' and depth 'd' carries a central load 77. The compression index of soil 'w'. The ratio of maximum deflection to (a) Decreases with increase in liquid limit CH maximum bending stress is (b) Increses with an increase in the liquid limit L2 L2 (c) Decreases with an increase in plastic limit (a) (b) (d) None of these 6Ed 8Ed L2 L2 78. The minimum water content at which the (c) (d) 48Ed 12Ed soil just begin to crumble when rolled into threads 3 mm in diameter is 70. If W is load on a circular slab of radius R, the maximum radial moment at the centre of the slab is TE (a) Liquid limit (b) Plastic limit (c) Shrinkage limit 3WR2 WR 2 (d) Permeability limit (a) (b) 16 16 79. How many grip points does a circle have in 3WR 2 WR 2 AutoCAD? (c) (d) 32 32 (a) 5 (b) 4 E (c) 3 (d) 2 71. Which of the following is not the displacement method? 80. The initial setting time of ordinary portland N (a) Equilibrium method cement should not be less than (b) Column analogy method (a) 36 minutes (b) 20 minutes (c) Moment distribution method (c) 30 minutes (d) 25 minutes (d) Kani's method ZO 81. The area of a sloping surface of a protective 72. The deformation of a spring produced by a embankment of mean height d, side slope S unit load is called : 1 and length L is (a) Stiffness (b) Flexibility (a) Ld 1  S 2 (b) 2Ld 1  S 2 (c) Unit strain (d) None of these 2 (c) d × d × S (d) d 2   dS  73. Select the correct range of density index (a) ID  0 (b) ID > 0 82. In order to measure the magnetic bearing (c) 0 < ID< 1 (d) 0  I D  1 of a line, the theodolite should be provided with 74. A soil is said to be well graded if coefficient (a) Tabular or trough compass of curvature lies between (b) Spirit level (a) Less than 1 (b) 1 and 3 (c) Extra telescope (c) 3 and 5 (d) 5 and 7 (d) Compass 9 RSMSSB Paper ZONE TECH CH TE E N ZO  10 RSMSSB Paper ZONE TECH 83. The expected out-turn of 12 mm plastering 91. What is the degree of static indeterminacy with cement mortar is of the plane structure as shown in the figure (a) 8.0 sq.m (b) 2.5 sq.m below? (c) 4.0 sq.m (d) 6.0 sq.m 84. Which one of the following sights is taken on a "turning point"? (a) Backsight only (b) Foresight and intermediate sight (c) Foresight only (d) Foresight and backsight CH 85. Agate cap is fitted with a (a) 3 (b) 4 (a) Cross staff (b) Level (c) 5 (d) 6 (c) Chain (d) Prismatic compass 92. Bending mo ment at any section in a 86. Equipotential lines and stream lines are conjugate beam gives..............in the actual intersect to each other at beam. (a) Acute angle (c) Right angle (b) Obtuse angle (d) 45° TE (a) Slope (c) Deflection (b) Cuvature (d) Bending moment 93. A rigid jointed plane frame is stable and 87. Pressure inside a water droplet is given by statically determinate if relation (a) (m + r) = 2j (b) (m + r) = 3j 16 4 (c) (3m + r) = 3j (d) (m + 3r) = 3j (a) P (b) P d d 94. The value of Poisson's ratios of the materials E 3 8 lie between (c) P (d) P d d (a) 1 and 2 (b) 0 and 1/2 (c) 0 and 1 (d) 2 and 3 N 88. The performance of a specific task in CPM is known as 95. The moment of inertia of a rectangle of (a) Dummy (b) Activity width b and depth d, about an axis xx passing through its centre of gravity and ZO (c) Contract (d) Event parallel to the ends, is given as (a) Ixx = db3/24 (b) Ixx = bd3/12 89. Which of the following expression represent 3 (c) Ixx = db /64 (d) Ixx = db3/32 the correct value of coefficient of curvature? D30  2  D 60  2 96. The relation between modulus of elasticity (a) CC (b) CC E, bulk modulus K, Posson's ratio 1/m is : D60  D10 D 30  D 10 (a) E = 3K (1 – 2/m)  D 10  2 D 30 (b) E = 2K (1 – 3/m) (c) CC (d) CC D  D (c) K = 3E (1 – 2/m) D 60  D 30 60 10 (d) K = 2E (1 – 3/m) 90. If the plasticity index of a soil mass is zero, 97. Maximum deflection in a simply supported then the type of soil is beam with a central point load is given by (a) Sand (b) Clay (a) 5 WL3/34EI (b) WL 3 /3EI (c) Silt (d) Clayey silt (c) WL3 /48EI (d) WL3 /8EI  11 RSMSSB Paper ZONE TECH 98. Which is the symbol used for well graded 106. In long and short wall method of estimation gravel as per ISC system of classification? the length of long wall is the centre to centre (a) GW (b) W distance between the walls and (c) WG (d) G (a) breadth of the wall (b) two third breadth of wall 99. The most commonly used retarder in cement (c) half breadth of wall on each side is (d) one fourth breadth of wall on each side (a) Gypsum (b) Calcium chloride 107. What is the total pressure on a plane surface (c) Calcium carbonate inclined at an angle  with the horizontal? (d) Sodium chloride (a) PA cos  (b) PA (c) PA tan  (d) PA sin  CH 100. Which of the following tree is not endogenous (a) Deodar (b) Bamboo 108. What is the approximate ratio between the (c) Cane (d) Palm strength of cement concrete at 7 days and 28 days 101. Quick lime on reaction with water gives 2 1 (a) Calcium oxide (a) (b) 3 3 (b) Calcium carbonate (c) Calcium hydroxide 1 3 (d) None of these TE 102. "Newton's Law of Viscocity" is a relationship (c) 2 (d) 4 109. With reference to the network shown in between below figure which statement is incorrect? (a) Pressure, velocity and Temperature 5 (b) Shear stress and Rate of shear strain (c) Shear stress and velocity (d) Rate of shear and velocity 3 6 8 E 1 2 103. Dimension of dynamic viscosity is (a) MLT–1 (b) ML–1 T –1 4 7 N (c) MLT–2 (d) ML2 T–1 (a) Events 3 and 4 occur after event 2 (b) Event 7 can occur after event 4 104. Continuity equation is based on the law of (c) Event 7 precedes event 6 ZO conservation of (d) Event 5 follows event 3 (a) Energy (b) Mass (c) Momentum (d) Pressure 110. The discharge through fully submerged orifice is 105. Discharge (Q) over a triangular notch or weir (a) C d  b   H 2 – H 1   2g  H 3 /2 is given by (b) C d  b  H 2 – H 1  2gH 2  3/2 (a) C d 2g.tan.H 3 2 (c) C d  b   H 3/ 2 2 – H 31 /2   2gH  (d) None of these (b) C d 2g tan.H 5/2 H = Difference of liquid levels on both sides 2 of the orifice 1 (c) C d 2g tan .H 5 /2 H1 = Height of liquid above top edge orifice 2 of upstream side 8  H2 = Height of liquid above bottom edge of (d) Cd 2g. tan.H5/2 15 2 orfice on upstream side  12 RSMSSB Paper ZONE TECH 111. The pressure measured above the absolute 116. According to Lacey's Silt theory perimeter zero of pressure is termed as P of a channel is proportional to (a) Atmospheric pressure (a) Q (b) Q0.8 (b) Gauge pressure (c) Q1/2 (d) Q2/5 (c) Absolute pressure (d) Vaccum pressure 117. A canal which is aligned at right angle to the contour is called 112. No. of links in a Revenue Chain is (a) Side slope canal (a) 16 (b) 32 (b) Branch canal (c) 100 (d) 150 (c) Watershed canal (d) Contour canal CH 113. If the quadrantal bearing of a line is N38°E, then the whole circle bearing of the line is 118. A crop requires a total depth of 90 cm of (a) 38° (b) 48° water for a base period of 110 days. Then (c) 52° (d) 322° duty of water is (a) 1056 Hec/Cumec 114. Due to change in price level a revised (b) 918 Hec/Cumec (c) 1123 Hec/Cumec estimate is prepared if the sanctioned estimate exceeds (a) 2.5% (b) 3% TE (d) 1026 Hec/Cumec (c) 5% (d) 10% 119. Garet's diagrams are based on (a) Kennedy's theory 115. Unit Hydrograph theory was given by (b) Khosla's theory (a) Merril Bernard (b) W.W. Horner (c) Lacey's theory (c) L.K. Sherman (d) Robert E. Horten (d) Bligh's theory E 120. Clapeyron's theorem is also known as the theory of N (a) 3- Moments (b) 2 -Moments (c) 1- Moments (d) None of these ZO 13 RSMSSB Paper ZONE TECH CH TE E N ZO