Seat No.: _________ Republic of the Philippine OPENSOURCE REE-RME REVIEW GROUP https://www.facebook.com/groups/ree.opensource OPENSOURCE ELECTRICAL ENGINEERING DIVISION REGISTERED ELECTRICAL ENGINEERS LICENSURE EXAMINATION SATURDAY, JAUNUARY 28, 2023 - - - - - - - - - - - - - - - - - - - - - - - - - - - ENGINEERING SCIENCE & ALLIED SUBJECTS: PREBOARD 1 SET: _______ 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. MULTIPLE CHOICE 1. A wooden cantilever 12m high has 20cm diameter at the bottom and 10cm diameter on top. Find the horizontal force applied on top at failure if the breaking stress is 35MN/m^2 A. 9.13 kN C. 9.31 kN B. 3.39 kN D. 1.93 kN 2. As per OSHS standard color of sign, what color is used as a precaution to the movement of equipment which is under repair? A. Blue B. Red C. Purple with combination of yellow D. Green with yellow stripes 3. How many years will be required for an investment of P 3000 to increase to P 4081.47 at an interest rate of 8% per year compounded annually? A. 3 C. 6 B. 4 D. 5 4. What is the most effective annual interest rate on a loan if the nominal interest rate is 12%/yr compounded quarterly? A. 11.8% C. 12.3% B. 12% D. 12.6% 5. A vertically loaded beam, fixed at one end and simply supported at the other is indeterminate to what degree? A. Second C. fourth B. First D. third 6. If you are appointed as a division manager, which of the following task is MOST likely you will do? A. Set a standard B. Set goals C. Determine the resources needed D. Develop strategies and tactics 7. How long will it take for an investment of P5000 to grow to P7500, if it earns 10% simple interest per year? A. 4 years C. 6 years B. 5 years D. 7 years 8. What refers to ions that are NOT involved in the overall reactions? A. Guest Ions C. Spectator Ions B. Special Ions D. Extra Ions 9. What is the standard color for safety signage to indicate the presence of radiation hazards, for example in the X-ray laboratory in the hospital? A. Purple with combination of yellow B. Orange C. Blue D. Green with combination of red 10. [SEPT2019] A home experimenter wants to make a one ohm resistor from a 1 mm diameter carbon rod from a mechanical pencil. What length of the rod does the experimenter need if the resistivity of carbon is 3.5 x 10^-5 ohmmeter? A. 24.44 mm C. 22.44 cm B. 22.44 mm D. 24.44 cm 11. [SEPT2022] A garden hose fills seconds. The opening at the end of How fast is the water traveling as A. 0.63 B. 0.50 a 32 L wastebasket in 120 the hose has a radius of 1cm. it leaves the hose in m/s? C. 0.85 D. 0.38 12. [SEPT2022] Engineers can become good managers only through ______. A. Experience C. Taking a master’s degree B. Effective career planning D. Trainings 13. [SEPT2022] Which of the following is not used in the Program Evaluation and Review Technique? A. Construction of projects B. Computer programming assignments C. Preparation of bids and proposal D. Queueing problems 14. [SEPT2022] Which of the following thermodynamic relations is incorrect? A. Tds = dU + pdV C. Tds = dH - pdV B. U = Q – W D. H = U + pV 15. [SEPT2022] Buying insurance is a form of: A. Risk elimination C. Risk reduction B. Risk sharing D. Risk absorption 16. Which of the following is NOT an extensive property of a material? A. Length C. Volume B. Density D. Weight 17. [SEPT2022] When an engineer enters management, what is the most likely problem that he finds difficult to acquire? A. Learning to trust others B. Learning how to work through others C. Learning how to take satisfaction in the work of others D. All of the above 18. [SEPT2022] What is the most essential attribute of a project manager? A. Leadership C. Charisma B. Communication skills D. Knowledge 19. [SEPT2022] How are lines of constant pressure in a fluid related to the force field? A. They are parallel to the force field. B. They are perpendicular to the force field. C. They are at a 45° angle to the force field. D. They are perpendicular only to the force of gravity. 20. [SEPT2022] Which of the following ratios represents a physical interpretation of the Reynolds number? A. Re = inertial forces / viscous forces B. Re = inertial forces / drag forces C. Re = viscous forces / inertial forces D. Re = viscous forces / buoyant forces 21. [SEPT2022] Which of the following flow meters measure(s) the average fluid velocity rather than a point or local velocity in a pipe? I. venturi meter II. pitot tube III. impact tube IV. orifice meter V. hot-wire anemometer A. I only B. I and IV C. II only D. II and V 22. [SEPT2022] In preparing a metallographic iron specimen, the grain boundaries are made most visible by which of the following steps? A. grinding the sample with silicon carbide abrasive B. polishing the sample with Al203 C. mounting the sample in an epoxy resin mold D. etching the sample in a 2% solution of nitric acid in alcohol 23. [SEPT2022] For which of the following is the Program Evaluation and Review Technique (PERT) NOT used? A. construction projects B. computer programming assignments C. preparation of bids and proposals D. queueing problems 24. [SEPT2022] In a spreadsheet, the number in cell A2 is set to 2. Then cell B2 is set to A2*4/$A$2, where $ indicates the absolute cell address. This formula is copied into cells C2 and D2. The number shown in cell D2 is A. 2 C. 4 B. 8 D. 16 25. [SEPT2022] In RA7920, “commission” refers to A. PRC C. PRBEE B. IIEE D. DOLE 26. [SEPT2022] In RA7920, which of the following is not considered as a practice of electrical engineering? A. Manufacturing of electrical equipment B. Sales and distribution of electrical equipment C. Preparing electrical plans D. Teaching in secondary school 27. [SEPT2022] What is the present value of 100 pesos after 4 years if the inflation rate is 7%? A. Php 74.81 C. Php 78.41 B. Php 71.48 D. Php 87.41 28. [SEPT2022] Cross linking of natural rubber is called? A. Sulfurization C. Vulcanization B. Polymerization D. Rubberization 29. [SEPT2022] Specific atom of an isotope is called A. nuclide C. fermion B. electron D. proton 30. [SEPT2022] IEEE 1284 is a standard communication that defines A. wireless communication C. wired communication B. parallel communication D. serial communication 31. [[SEPT2022] A network of private computers infected with malicious software and controlled as a group without the owners' knowledge, e.g., to send spam messages. A. phishing C. botnet B. hacking D. trojan horse 32. [SEPT2022] _____ is a type of malware whose primary function is to self-replicate and infect other computers while remaining active on infected systems. A. worm C. virus B. trojan horse D. botnet 33. [SEPT2022] A machine is under consideration for purchase. The cost of the machine is $25,000. Each year it operates, the machine will generate a savings of $15,000. Given an effective annual interest rate of 18%, what is the discounted payback period on the purchase in the machine? A. 1.67 yr C. 1.75 yr B. 2.15 yr D. 3.17 yr 34. [SEPT2022] A 1000 peso was borrowed with an effective annual interest rate of 19.65% and will be paid 200 pesos a month. What will be the remaining amount after the 3rd payment? A. Php 470 C. Php 390 B. Php 330 D. Php 250 35. [SEPT2019] Find how much should be put in as investment with 12% effective annual rate of interest today to have a P12,000 in five years? A. P 7,121.42 C. P 6,078.57 B. P 6,513.12 D. P 6,089.12 36. [SEPT2022] Color used for traffic and good housekeeping signage? A. blue C. black and white B. yellow with white D. red 37. [SEPT2022] A bar of uniform cross section is subject to a uniaxial tension and develops a strain in the direction of the force 1/800. Calculate the change of volume per unit volume. Assume p= 1/3. A. 1/2400 (inc) C. 1/2400 (dec) B. 1/1200 (inc) D. 1/1200 (dec) 38. [SEPT2022] If Php 25,000 is deposited now into a savings account that earns 6% per year, what uniform annual amount could be withdrawn at the end of each year for ten years so that nothing would be left in the account after the 10th withdrawal? A. Php 2537.47 C. Php 3725.74 B. Php 7235.74 D. Php 7523.47 39. [SEPT2022] An engineer wants to start a business which requires purchase of a Php 100,000 worth machine which will produce a net income of Php 11,000 per year after deducting operating expenses. The engineer plans to put the machine on sale after 4 years, what must be the resale price to justify the Investment if the engineer should make a 12% annual return on the investment. A. Php 101,589.75 C. Php 110, 879.90 B. Php 104,779.33 D. Php 105,583.48 40. [SEPT2022] A beaker is filled with water (n = 1.33) to a depth of 10cm. On top of it is benzene (n = 1.5) with a depth of 6cm. How deep is it when you look directly above it? A. 10 C. 9.5 B. 10.5 D. 11.5 41. The maximum shear stress for the beam with triangular crosssection. A. 3b/sh C. 4s/bh B. 3s/bh D. 4b/sh 42. Established by ERC to monitor the Philippine Distribution Code (PDC) compliance at the planning and operations level and to submit regular and special reports pertaining to distribution planning and operations. a. Grid Management Committee (GMC) b. Distribution Management Committee (DMC) c. Philippine Distribution Code (PDC) d. Philippine Grid Code (PGC) 43. What network model enables an engineer manager to schedule, monitor and control large and complex projects by using only one time factor per activity? A. Forecasting B. Critical path method (CPM) C. Simulation D. Program evaluation review technique (PERT) 44. [APRIL2022] James is downloading an 800 kB file from the internet using his 28.8k modem. How long will it take him to finish downloading? A. 0.46 min C. 3.7 min B. 3.8 min D. 4.1 min 45. Which of the following does not threaten the operation of a computer? A. Trojan horse C. Firewall B. Worm D. Hacking 46. How much water overflows when a Pyrex vessel filled to the brim with 1L of water at 20°C is heated to 90°C, the coefficient of volume expansion of Pyrex and water are 9x10^-6/°C and 2.1x10^-4/°C respectively? A. 1.41 cc C. 14.1 cc B. 11.4 cc D. 1.14 cc 47. A 2.5-inch diameter shaft is 2 ft long. Its maximum shear stress is 10,000 psi. What is the angular deflection in degrees? A. 0.96° C. 0.45° B. 0.78° D. 0.56° 48. Calculate the average velocity of blood in the aorta (radius 1 cm) when the flow rate is 5 L/min. A. 27 cm/s C. 37 cm/s B. 17 cm/s D. 35 cm/s 49. What is the water pressure if the manometer is 0.6 m Hg? Mercury is 13.6 times heavier than the water. A. 27.4 kPa C. 47.2 kPa B. 79.97 kPa D. 72.4 kPa 50. A machine gun fires 4.8 bullets per second at a speed of 640 m/s. The mass of each bullet is 0.014 kg. What is the average recoil force experienced by the machine gun? A. 43N C. 38N B. 52N D. 58N 51. Which interest? A. 12.35% B. 11.90% C. 12.20% D. 11.60% of the following gives the lowest effective rate of compounded compounded compounded compounded annually semi-annually quarterly monthly 52. Acid test ratio is also called ___. A. Quick ratio C. Current ratio B. Income ratio D. Profit ratio 53. It is also known as cooperative processing that involves using two or more networked computers to perform an application task. A. Client computing C. Server computing B. Distributed processing D. Client/server computing 54. $1000 is deposited into a 9% account today. At the end of 2 years, another $3000 will be deposited. In 5 years, a $4000 purchase will be made. Approximately how much will be left in the account 1 year after the purchase? A. $1230 C. $1420 B. $1540 D. $1690 55. The temperature of 100g of liquid water at 0°C. The number of calories consumed is almost. A. 1.2 cal C. 4.2 cal B. 99 cal D. 100 cal 56. It states that if two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. A. First law of thermodynamics B. Zeroth law of thermodynamics C. Third law of thermodynamics D. Second law of thermodynamics 57. [SEPT2019/SEPT2022] What will you do when you install a new heat sink? A. Insert thermal compound between processor and system board. B. Apply isopropyl alcohol between processor and heatsink. C. Insert thermal compound between processor and heatsink. D. Apply isopropyl alcohol between processor and system board. 58. In cold working of metals A. close dimensional tolerance cannot be maintained B. poor surface finish is obtained C. recrystallization temperature for steel is reduced D. strength and hardness of steel is increased 59. Device used to pull wire through the conduit. A. straps C. fish tape B. wire tongs D. puller 60. EPIRA is RA _____. A. 184 B. 9163 C. 9136 D. 7920 61. In a hydraulic press, the small cylinder has a diameter of 8 cm, while the larger piston has a diameter of 22 cm. If a force of 600 N is applied to the small piston, what is the force on the larger piston neglecting friction? A. 3.5 kN C. 4.5 kN B. 5.5 kN D. 6.6 KN 62. What is the critical angle, in degree, of the incidence for a ray of light passing from the glass into water? Assume index of refraction for glass = 1.54 and index of refraction of water = 1.33 A. 59.7 C. 45.8 B. 67.4 D. 50.9 63. Which of the following is used in thermal power plants? A. Brayton Cycle C. Reversed Carnot Cycle B. Rankine Cycle D. Otto Cycle 64. It requires Q of the heat to make a cup of coffee. How much energy is needed to make 3 cups of coffee? A. 3 Q C. 2 Q B. Q D. 4 Q 65. When using net present worth calculations to compare two projects, which of the following could invalidate the calculation? A. differences in the magnitudes of the projects B. evaluating over different time periods C. mutually exclusive projects D. nonconventional cash flows 66. Car traveled 20 m/s south in 3 min, 25 m/s east in 2 min and 30 m/s northeast in 1 min. Find the average velocity in 6 min. A. 15.31 m/s C. 13.51 m/s B. 32.33 m/s D. 23.33 m/s 67. Which of the following impurity in cast iron makes it hard and brittle? A. Silicon C. Sulfur B. Manganese D. Phosphorus 68. The first metal used by man was A. Iron C. Copper B. Gold D. Bronze 69. A cyclist’s average metabolic rate during a workout is 500 W. if the cyclist wishes to expand at least 300 kcal of energy, how long must the cyclist exercise at this rate? A. 0.6min C. 3.6 min B. 36.0 min D. 41.9 min 70. A machine has an initial cost of P50,000.00 and a salvage value of P10,000.00 after 10 years. What is the book value after 5 years using straight line depreciation? A. P35,000.00 C. P25,000.00 B. P15,000.00 D. P30,000.00 71. What is PSALM in EPIRA strand for? A. Private Sector Assets and Liabilities Management B. Private System Assets and Liabilities Management C. Power Sector Assets and Liabilities Management D. Power System Assets and Liabilities Management 72. [SEPT2019] Pedro won Php 10,000,000 in the lottery. Unfortunately, the lottery commission will not pay Kiko the entire amount now. Instead, they will pay Kiko Php 500,000 each year for the next 20 years, starting at the end of the first year. What is the present worth of Pedro’s winnings? Assume a nominal annual interest rate of 10%? A. PHP 3,547,318 C. PHP 4,256,782 B. PHP 5,000,000 D. PHP 867,769 73. Which one is the portion of an instruction cycle where the instruction is sent from memory to register? A. load C. Accumulate B. execute D. fetch 74. What percentage of the human body will float in fresh water? Average density of the human body is 980 kg/cu. m. A. 98 C. 2 B. 96 D. 4 75. After installing a new modem and router to a computer, what is the order of tuning on? A. Computer, Modem, Router C. Router, Modem, Computer B. Modem, Computer, Router D. Modem, Router, Computer 76. [SEPT2022] In a spreadsheet, the number in cell A2 is set to 2. Then cell B2 is set to A2*4/$AS2, where $ indicates the absolute cell address. This formula is copied into cells C2 and D2. The number shown in cell D2 is? A. 2 C. 4 B. 8 D. 16 77. A flywheel with a moment of inertia of 2 kg-m3 is applied with a torque of 5 N-m. If it starts from rest, what is the speed of the flywheel, in rpm, after 5 seconds? A. 129.67 C. 119.36 B. 59.78 D. 92.76 78. An act of sending e-mails or creating web pages that are designed to collect an individual’s online bank, credit card or other login information. A. Malware C. Hacking B. Cracking D. Phishing 79. A woman stands on a bathroom scale in an elevator that is not moving. The scale reads 450 N. The elevator then moves downward at a constant velocity of 4.5 m/s. What does the scale read while the elevator descends with constant velocity? A. 450 N C. 250 N B. 225 N D. 500 N 80. Sec. 23 of Art. III of RA 7920: Issuance of Certificates of Registration. The professional is required to renew the license every ___ years upon payment of registration fees. A. 1 C. 2 B. 3 D. 4 81. For hospitals, a general lighting load of ___ VA/m2 shall be used. A. 12 C. 24 B. 8 D. 16 82. A method of identifying the location of a given data record by its name. A. Tracking C. Linker B. Signature D. Hashing 83. MS-WORD is a type of? A. System Software B. Application Software C. Operating System D. System Software 84. A man pushes a 50-kg refrigerator at a distance of 15m. If the coefficient of friction is 0.4, what is the work done by the man? Use g=9.8m/sec2. A. 2490 J C. 7530 J B. 2940 J D. 7350 J 85. A reservoir dam holds an 8.00-km2 lake behind it. Just behind the lake is 12.0m deep. What is water pressure at a point 3.0m down from the lake’s surface? A. 27 C. 29 B. 25 D. 24 86. A sports car is traveling at 50kph when it applies full brakes. It travels 15 ft. before coming to a full stop. If it now travels at 150 kph and applies brakes the same way, how far does it travel before it stops? A. 15ft C. 26ft B. 45ft D. 135 ff 87. A thin hollow sphere of radius 10 in. and thickness 0.1 in. is subjected to an internal pressure of 100 psig. The maximum normal stress on an element of the sphere is A. 5,000 psi C. 10,000 psi B. 25,000 psi D. 20,000 psi 88. A baseball is thrown with an initial velocity of 100 m/s at an angle of 30 degrees above the horizontal. How far from the throwing point will the baseball attain its original level? A. 799 m C. 977 m B. 884 m D. 848 m 89. Absolute reference in a spreadsheet is used by inserting a ________ sign before the column and row. This is used for data reference in another cell. A. period C. dollar B. semicolon D. hyphen 90. Which group of the periodic table is known as the alkali metals? A. Group 1 C. Group 2 B. Group 3 D. Group 4 91. The board of Electrical Engineering is composed of one chairman and how many members? A. 2 C. 3 B. 4 D. 5 92. Litmus paper changes from blue to red when a solution tested is A. a blue dye C. an acid B. a red dye D. a base 93. The abbreviation for binary digit A. bid C. bin B. bit D. byte 94. Aluminum can be added to steel to produce A. killed steel C. dead steel B. live steel D. first steel 95. In the flow chart, what is the symbol used in decision making? A. oval C. rectangle B. diamond D. square 96. [SEPT2022] Which of the following elements and compounds is unstable and its pure form? A. Sodium (Na) C. Carbon Dioxide (CO2) B. Helium (He) D. Neon (Ne) 97. What is the temperature rating of THHN insulation? A. 60 deg C C. 90 deg C B. 85 deg C D. 75 deg C 98. (100) base 10+(111) base 2 = (___) base 8. A. 151 C. 153 B. 145 D. 105 99. Find the value of J after executing the following program. I=1 J-0 15 J-J**2+I**2 IF (I.EQ.3) GO TO 16 I=I+1 GO TO 15 16 CONTINUE A. 9 C. 15 B. 34 D. 40 100. Which of these FORTRAN format specifications reads the input -567610 as -5676.10? A. F6.2 C. F7.2 B. F8.2 D. F7.3