Prepare for the RME Exam
Practice Your Knowledge
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#1. What is the purpose of connecting cells in series?
#2. Solid wire is preferred instead of a stranded wire in panel wiring because ________.
#3. In sockets, extension cord is protected by means of the __________knot.
#4. A shunt generators has an armature current of 100 A and a shunt field current of 3.5 A. What is its output in kW if the terminal voltage is 230 volts?
#5. Which of the following is used to control speed in a DC motor:
#6. A fusestat is different than the ordinary plug fuse because a fusestat ____________.
#7. A magnetic field is created around a conductor_________.
#8. A capacitor performs which of the following functions:
#9. Of the following _______ is a false statement.
#10. A common fuse and circuit breaker works on the principal that _______.
#11. Three-way switching does not use the following conductor:
#12. A wrench you would not use to connect rigid metal conduit is a ______ wrench.
#13. The wheatstone bridge method is used for accurate measurements of _______.
#14. Laminations are used in transformers to prevent __________.
#15. In general, motors are designed to operate in a maximum ambient temperature of ______ unless specifically designed for a higher temperature.
#16. In a dc generator, the purpose of the commutator is to _____.
#17. In a coil, the higher the level of self-inductance:
#18. The number of wattmeter/s necessary to measure the power in the load of a unbalanced 3-phase, 4-wire system is
#19. During one complete rotation of 360 degrees, a three-phase 6-pole AC 34 kVA alternator on a Y-connected system will have how many of the following rotations:
#20. Where the __________ is likely to be high, asbestos insulation on the conductor would be a good choice.
#21. Which of the following would improve the resistance to earth I. Use multiple ground rods II. Treat the soil III. Lengthen the ground rod
#22. The advantage of cutting a metal rigid conduit with a hacksaw rather than a pipe cutter is _______.
#23. How long a piece of aluminum wire 1.6 mm in diameter is needed to give a resistance of 1.5 ohms? Assume resistivity of aluminum is 2.8 x 10-8 ohm-meter.
#24. To adjust a voltage generated by a constant speed DC generator, you would change the _____.
#25. The armature current drawn by any DC motor is proportional to the _______.
#26. An electrical timer switch for lighting is normally connected in ________ with lighting circuit being controlled.
#27. Inductance and capacitance are not considerations in a DC current for which of the following reasons:
#28. If two equal resistance conductors are connected in parallel, the resistance of the two conductors is equal to_______.
#29. As the power factor of a circuit is increased ________.
#30. Which of the following should be tested to check for voltage to ground:
#31. The short circuit test on a transformer is a test for measuring its ______.
#32. In an electrical conductor that consists of 16 strands, each with a diameter 0.0837 inches, the area of the conductor would be which of the following:
#33. ________ is a self-acting, operating by its own mechanism when actuated by some impersonal influence, as for example, a change in current strength, pressure, temperature, or mechanical configuration.
#34. Red – Yellow - Gold – Gold indicates a resistance of:
#35. A transformer has a primary voltage of 2400 V and a secondary voltage of 120 volts. If there are 40 turns on the primary, the secondary contains _____ turns.
#36. A circuit breaker that has purposely introduced into it a delay in the tripping action and which delay decreases as the magnitude of the current increases is a __________ circuit breaker.
#37. When reduced to the most nominal component, the smallest element of matter is which of the following:
#38. A fellow electrician is not breathing after receiving an electrical shock, but is no longer in contact with the electricity, the most important thing for you to do is ______.
#39. With respect to the fluorescent lamps, it is correct to state ______.
#40. A residential house has a lighting load of 200 W and a small appliance load of 1000 W. If they are used at the same time, what will be the monthly bill at an energy cost of P7.00 per kilowatt-hour?
#41. What is the metric size equivalent of 500 MCM?
#42. The usual service conditions under which transformer should be able to carry its rated load are _____. I. at rated secondary voltage or not in excess of 105% of the rated value II. at rated frequency III. temperature of the surrounding cooling air at no time exceeding 400 (1400F) and average temperature of the surrounding cooling air any 24-hour period not exceeding 300C (860F)
#43. Two transmission wires create corona when which of the following exists:
#44. Three capacitors are in parallel. Their values are 0.0200 μF, 0.0500 μF and 0.10000 μF. The total capacitance is:
#45. When stripping insulation from an aluminum conductor ________. I. remove insulation as you would sharpen a pencil II. ring the conductor and slip the insulation off the conductor III. peel the insulation back and then cut outwards
#46. A ____ is a braking system for an electric motor. I. Friction braking II. Plugging III. Dynamic braking
#47. Continuous duty is _____.
#48. The voltage produced by electromagnetic induction is controlled by_________.
#49. You should close a knife switch firmly and rapidly as there will be less_______.
#50. The specific resistance of a wire depends on ______. I. its length II. its material iii. its cross-sectional area