Batangas State University Engineering Sciences & Allied Subjects Exam Paper PDF 2024-2025

Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200...

Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering EVALUATION EXAM IN ELECTRICAL ENGINEERING PRACTICE (ENGINEERING SCIENCES AND ALLIED SUBJECTS) 1st Semester, AY 2024-2025. Course Code EE 418 Course Title Electrical Engineering Practice with Comprehensive Examination Section Date Time SR-Code Name of Student SECTIONS POINTS ILOs Questions Points 1. Multiple Choice 100 3 1-100 100 TOTAL POINTS 100 Instructions to Students 1. Only calculators, black ballpens, pencils and exam papers are visible on your desk. 2. Strictly no use of cell phone during examination. 3. This is a closed book examination; no notes are permitted. 4. Any form of cheating will mean a grade of 0 in this exam. 5. Severe disciplinary action will be taken against those caught violating examination rule.  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering ENGINEERING SCIENCES AND ALLIED SUBJECTS INSTRUCTION. Select the correct answer for each of the following questions. Mark only one answer for each item by shading the box corresponding to the letter of your choice on the answer sheet provided. STRICTLY NO ERASURES ALLOWED. Use pencil no. 2 only. SET A 1. Shaft work of -15 BTU/lb and heat transfer of -10 BTU/lb, the change of enthalpy of a system by: A. -25 C. -15 B. -5 D. +5 2. A compression ignition cycle is modeled by which ideal cycle? A. Otto cycle C. Diesel cycle B. Rankine cycle D. Brayton Cycle 3. What is oxidized and what is reduced in the following reaction? Zn + H2SO4 →ZnSO4 + H2 A. Zinc is oxidized only B. Zinc is reduced only C. Zinc is oxidized and hydrogen is reduced D. Zinc is reduced and hydrogen is oxidized 4. What are the elements comprises vinegar? A. Carbon, Nitrogen, Oxygen B. Sulfur, Hydrogen, Oxygen C. Carbon, Hydrogen, Oxygen D. Phosphorus, Hydrogen, Oxygen 5. The number of g of sodium thiosulfate (Na2S2O3) needed to prepare 500 ml of 0.4 M solutions is: A. 790 C. 1.26 B. 31.6 D. 126.4  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 6. Find the gauge pressure of sea water of specific gravity of 10.1 kN/m3 at 100 m head. A. 1212 kPa C. 1414 kPa B. 1616 kPa D. 1010 kPa 7. What is the buoyant force on a 0.9 kg ice completely submerged in fresh water? A. 9.81 N C. 8.83 N B. 28.98 N D. 7.95 N 8. A man invests P20,000 now for the college education of his 2-year old son. If fund earns 14% effective interest, how much will the son get each year starting his 18th to 22nd Birthday? A. P41,583.28 C. P43,185.82 B. P45,183.28 D. P48,135.82 9. Determine the mass in kg of air in a room whose dimensions are 4m x 5m x 6m at 100 kPa and 250C. The gas constant of air is R = 0.287 kPa-cu.m/kg-K. A. 140 C. 130 B. 125 D. 150 10. A beam, securely fastened to a wall, is subjected to three-dimensional loading. How many components of reactions are possible? A. Four C. Six B. Three D. Nine 11. A free falling body is a body in rectilinear motion with constant _____________. A. Deceleration C. Acceleration B. Impulse D. Velocity 12. Two balls are dropped from a table, ball-1 is dropped free falling while the other ball-2 is fired at an angle of 20 deg. Which will hit the ground with greater velocity? A. Ball-1 C. Ball-2 B. Same Velocity D. Dragon Ball  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 13. What is the torque in Newton-meter of a 5 kg mass and a length of 2.5 m? A. 2.808 C. 90.5 B. 456 D. 123 14. An iceberg has a density of 57.10 lbm/ft3. If it floats in fresh water, what percent of the iceberg’s volume will be visible? A. 7.5% C. 6.5% B. 10.5% D. 8.5% 15. Convert 1200 gallon per minute to liters per minute. A. 4542 C. 4452 B. 5424 D. 4254 16. What horsepower is required to pump 200 ft3 of water per minute into a main at a pressure of 25 psi? A. 22 C. 32 B. 9 D. 35 17. If the mass on a body were doubled, its acceleration due to gravity would be ______. A. Doubled C. unchanged B. Halved D. four times 18. A flywheel of a motor rotating 200 rpm if it decelerates by 2 rad/sec2. How long will it stop? A. 14.74 sec C. 10.47 sec B. 12.47 sec D. 13.07 sec 19. Determine the outside diameter of a hollow steel tube that will carry a tensile load of 500kN at a stress of 140 MPa. Assume the wall thickness to be one-tenth of the outside diameter. A. 114.2 mm C. 112.4 mm B. 115.2 mm D. 110.4 mm  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 20. A simple beam “L” meters long carries a concentrated load “P” Newtons at a midspan. What is the maximum bending moment of the beam? A. PL/4 C. PL/2 2 B. PL /4 D. PL2/6 21. What is the pH if the [H3O+] concentration is 0.003M? A. 2.52 C. 2.25 B. 5.22 D.5.25 22. Find the resultant of the coplanar forces 80 lbs at -30 deg and 60 lbs at 60 deg. A. 100 lbs at 6.87 deg C. 120 lbs at 113.1 deg B. 100 lbs at -66.9 deg D. 120 lbs at 6.87 deg. 23. A ball has a radius of 1.25 in. and weight of 0.5 lbs. Find the mass moment of inertia about the center of gravity. A. 0.00971 ft-lb-sec2 C. 0.000971 ft-lb-sec2 B. 0.0000674 ft-lb-sec2 D. 1.398 ft-lb-sec2 24. What is the force required to punch a 20mm circular hole through a plate of 25 mm thick steel? Ultimate shear strength of the plate is 350 MPa. A. 549.8 kN C. 358.9 kN B. 458.9 kN D. 649.8 kN 25. What is the formula for baking soda (sodium bicarbonate)? A. NaHCO3 C. NaCO2 B. Na2CO3 D. NaClO3 26. How many closest neighbors does BCC (body centered cubic) atom have? A. 4 C. 8 B. 6 D. 10 27. What is the average kinetic energy of the molecules of any gas at 1000C? A. 4.42 x 10-19 J C. 4.24 x 10-19 J B. 2.24 x 10-19 J D. 2.42 x 10-19 J  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 28. A lamp is suspended from a high ceiling with a cord 12 ft long. Find its period of oscillation. A. 3.85 sec C. 3.58 sec B. 2.34 sec D. 2.43 sec 29. Given (25.675) base 8 is equal to ______ base 16. A. 21.DE7F C. 21.7FED B. 22.34BE D. 22.BE43 30. How much money should be deposited now in a savings account to yield P1000 in 6 years? The annual interest rate is 10%, compounded semi-annually? A. P459 C. P565 B. P557 D. P679 31. Hawk is flying at a speed of 5m/sec and 60 degrees with the horizontal. Find the speed of her shadow in m/sec on the ground. A. 4.33 C. 10 B. 2.5 D. 5.77 32. Which is not a unit of work? A. N-m C. kg-m2/sec2 B. Erg D. dyne 33. If a 1/3 hp pump runs for 20 mins, what is the energy used? A. 0.06 ergs C. 0.25 kW B. 0.30 MJ D. 0.11 kW-h 34. The Burj Khalifa tower in Dubai is 2,717 ft high. How long would it take an object dropped from the top of the tower to reach the ground? A. 15 sec C. 13 sec B. 10 sec D. 7 sec 35. A reduced substance is what type of agent? A. Oxidizing agent C. Reduction agent B. Redox agent D. Nonredox agent  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 36. Which of the following is not a standard classification for a branch circuit supplying several loads? A. 20 Amp C. 30 Amp B. 25 Amp D. 50 Amp 37. The device that measures the acid content of the cell is called _____. A. acid meter C. hygrometer B. hydrometer D. pyrometer 38. In telescopes, what refers to the ratio between the angle subtended at the eye by the image and the angle subtended at the eye by the object seen directly? A. magnifying power C. angular magnification B. linear magnification D. object magnification 39. What does LASER stands for? A. Light amplification by spectral emission of radiation B. Light amplification by state emission of radiation C. Light amplification by stimulated emission of radiation D. Light amplification by saturated emission of radiation 40. What is an instrument used to detect and measure radioactivity? A. Edison counter C. Fraunhofer counter B. Radioactive counter D. Geiger counter 41. A/An _______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero. A. isentropic flow C. steady flow B. isobaric flow D. uniform flow 42. What is the ratio of the transverse strain to the corresponding axial strain in a body subjected to uniaxial stress? A. Poisson’s ratio C. Refractive index B. Euler’s ratio D. Dielectric index  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 43. Poise is a unit of viscosity derived from which of the following? A. dyne-second per square centimeter B. pound-second per square foot C. slugs-second per square foot D. gram-second per square centimeter 44. Which of the following principles states that pressure applied to a confined fluid increases the pressure throughout by the same amount? A. Archimedes’ principle C. Pascal’s principle B. Bernoulli’s principle D. Torricelli’s principle 45. What is the highest efficiency of heat engine operating between the two thermal energy reservoirs at temperature limits? A. Ericson efficiency C. Carnot efficiency B. Otto efficiency D. Stirling efficiency 46. “The condition of equilibrium or motion of a rigid body remains unchanged if a force acting at a given point of the rigid body is replaced by a force of the same magnitude and direction, but acting at a different point provided that the two forces have the same line of action”. This statement is known as _________. A. Pappus Propositions C. Parallelogram theorem B. Principle of transmissibility D. Varignon’s theorem 47. What is the ASTM tension testing designation for standard methods for steel products? A. A370 C. E8 B. E345 D. C674 48. What do you add to compensate for the remaining high iron oxide content of the steel? A. Deorizers C. Deterrent B. Deoxidizers D. Detoxifiers 49. What does ASTM stands for? A. Association of Steel Testing and Materials B. American Society for Testing and Materials C. Asian society for Testing and Materials D. Allied Society for Testing and Materials  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 50. A type of bond where the corporation pledged securities which it owns such as the stock or bonds of one of its subsidiaries. A. Mortgage bond C. Security bond B. Joint bond D. Collateral trust bond 51. The amount of company’s profit that the board directors of the corporation decides to distribute to ordinary shareholders is called __________. A. dividend C. share of stock B. return D. equity 52. What is the quality of metals that appears shiny and reflects light? A. Luster C. Streak B. Fluorescent D. Transparency 53. It is the maximum frequency, which the human ear can hear. A. 35,000 Hz C. 10,000 Hz B. 40,000 Hz D. 20,000 Hz 54. Most fax printers are of which type? A. Thermal C. Impact B. Electrosensitive D. Laser Xerographics 55. What is FTTH means? A. Fiber To The Home C. Fiber Through The House B. Fiber Through The Hub D. None of the above 56. In financial accounting another term for Acid Test Ratio is _______. A. Quick Ratio C. Current Ratio B. Profit gain ratio D. Price-earning ratio 57. What is Rule 11 in RA 7920? A. Action on Communication C. Program of Examination B. Places and Dates of Examinations D. Publication of Examination  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 58. What is the distance from the flooring to the receptacle outlet in dwelling unit? A. 3.6 m C. 1.8 m B. 1.6 m D. 3.2 m 59. What is the effective rate of interest corresponding to 8% compounded semi-annually? A. 8.16% C. 8.24% B. 8.30% D. 8 % 60. What is the capitalized cost of a machine with an initial cost of P250,000.00, a maintenance cost of P10,000.00 per year, and an infinite life? The effective annual interest rate is 10%. A. P260,000.00 C. P350,000.00 B. P250,000.00 D. P100,000.00 61. Rod and pipe electrodes shall NOT be less than _____ mm in length. A. 1,500 C. 2,400 B. 1,800 D. 2,800 62. Another term for voltage sag. A. Voltage dip C. Voltage swell B. Voltage reduction D. Voltage drop 63. For an equivalent coefficient of friction of 0.6. What is angle of friction, phi? A. 53.13 deg C. 36.87 deg B. 30.96 deg D. 21.80 deg 64. A 60-kg man jumps with a speed of 1m/s into a 40-kg log. What is the speed of the log relative to the shore? A. 1.67 m/s C. 1.0 m/s B. 0.6 m/s D. 0.4 m/s  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 65. An aluminum bar 50 m long is subjected to tensile stress of 175 MPa. What is its elongation? Take E = 70 GPa. A. 125 mm C. 250 mm B. 115 mm D. 150 mm 66. What is the maximum shearing stress of a triangular plate with base “b” and height “h” if “V” is shear force? A. 3V/bh C. 4V/bh B. 5V/bh D. 1.5V/bh 67. Hydraulic brakes in an automobiles work on ______. A. Bernoulli’s Law C. Pascal’s Law B. Posieuille’s Law D. Archimedes principles 68. An instrument use to measure pressure commercially? A. Kelvin gauge C. Manometer B. Bourdon gauge D. McLeod gauge 69. Which of the following instruments measures velocity of water? A. Pitot-tube C. Anemometer B. Pyrometer D. Manometer 70. What is the term which defines the combination of Laminar and Turbulent flow? A. Transitional flow C. Reynold’s flow B. Hydraulic pump D. Undefined 71. The theoretical velocity generated by a 10 feet hydraulic head is: A. 25.4 ft/sec C. 12.2 ft/sec B. 17.9 ft/sec D. 29.2 ft/sec 72. If the specific volume of a gas is 0.72 m3/kg, what is its specific weight? A. 13.63 N/m3 C. 14.63 N/m3 B. 15.36 N/m3 D. 12.36 N/m3  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 73. What does dynamics in Thermodynamics mean? A. Energy Transfer C. Curvilinear motion B. Particles in Motion D. Heat transfer 74. An ideal gas is compressed isothermally. The enthalpy change is: A. Always negative C. always positive B. Zero D. Infinity 75. In the periodic table of elements, which one of the following is the light metal? A. Mercury C. Silver B. Gold D. Potassium 76. What is used where high strength combined with corrosion resistance is needed? A. Silicon Bronze C. Alnico B. Cunife D. Nichrome 77. Cross-linking of natural rubber is known as: A. Vulcanization C. Sulfurization B. Raw rubberation D. Polymerization 78. All are basic operation in Boolean Algebra EXCEPT: A. Logic addition C. logic multiplication B. Logic subtraction D. logic complementation 79. Which of the following is a common input device? A. Mouse C. Monitor B. LCD D. CPU 80. What holds data and instructions for further manipulation of the ALU (Arithmetic Logic Unit)? A. Register C. Database B. Control Unit D. Accumulator  Republic of the Philippines BATANGAS STATE UNIVERSITY The National Engineering University Alangilan Campus Golden Country Homes, Alangilan Batangas City, Batangas, Philippines 4200 Tel Nos.: (+63 43) 425-0139 local 2121 / 2221 E-mail Address: [email protected] | Website Address: http://www.batstate-u.edu.ph College of Engineering – Department of Electrical Engineering 81. What is the default view when printing a document? A. Portrait C. Landscape B. Page Set up D. I love view