RME Technical Subjects Test 9

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#1. A method for stopping a polyphase motor quickly by momentarily connecting the motor for reverse rotation.

a.) plugging

b.) jogging

c.) inching

d.) latching

#2. A device used to measure the mechanical output of a motor, or a generator is called

a.) watt-hour meter

b.) sphygmomanometer

c.) engine indicator

d.) dynamometer

#3. 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:

a.) 83.7 circular mils

b.) 70057 circular mils

c.) 83700 circular mils

d.) 112091 circular mils

#4. An applicant for Registered Master Electrician Examination who has completed from a one year electrician/s course or instruction from a vocational or trade school recognized by the Philippine government and in addition, has at least _____ years of apprenticeship after completion of the course of instruction on electrical wiring and installation, operation and maintenance of utilization devices and equipment is qualified to take the exam.

a.) 1

b.) 2

c.) 3

d.) 5

#5. Two incandescent 100 watt lamps operating for 8 hours at an average electrical energy cost of P8.00 per kilowatt hour will have a total energy cost equal to which of the following?

a.) P 12.80

b.) P 384.00

c.) P 6.40

d.) P 192.00

#6. Two transmission wires create corona when which of the following exists:

a.) The wires have a high potential difference

b.) The wires are installed overlapping or too close together

c.) The wires are spaced too far apart

d.) None of the above

#7. When skinning a small wire, the insulation should be “penciled down’ rather than cut square to ______.

a.) allow more room for the splice

b.) save time in making the splice

c.) decrease the danger of nicking the wire

d.) prevent the braid from fraying

#8. A rigid conduit connecting to an outlet box should have a __________ .

a.) bushing and locknut on the inside

b.) locknut and bushing on the inside

c.) bushing on the outside and a locknut on the inside

d.) locknut on the outside and a bushing on the inside

#9. For better illumination you would________.

a.) random spacing of lights

b.) evenly spaced, higher ceilings

c.) even spacing, numerous lights

d.) cluster lights

#10. Electrical motors with the highest voltage rating are used for which of the following purpose(s)?

a.) To produce the maximum possible power from the motors

b.) To reduce the size of the supply conductors required

c.) To lower power consumption

d.) All of the above

#11. Which of the following should be tested to check for voltage to ground:

a.) From the breaker to the grounding neutral

b.) From hot to neutral

c.) From a breaker to the cabinet

d.) All of the above

#12. If a two-wire 230 volt circuit has one grounded conductor and supplies a single-phase 5 horsepower motor, then the required number of overloads is which of the following:

a.) Two, one in each conductor

b.) One in the grounded conductor

c.) One in the ungrounded conductor

d.) Zero, no overload is required

#13. When re-routing conduit, it may be necessary to increase the wire size, if the distance is greater in order to ______.

a.) account for current drop

b.) compensate for voltage drop

c.) allow for possible resistance drop

d.) account for ampacity drop

#14. The important function of a type S fuse is ________.

a.) non-interchangeable

b.) motor protection

c.) slow burner

d.) fast acting

#15. Large squirrel cage induction motors are usually started at a voltage considerably lower than the line voltage to ______.

a.) allow the rotor current to build up gradually

b.) avoid excessive starting current

c.) permit starting under full load

d.) obtain a low starting speed

#16. Inductance and capacitance are not considerations in a DC current for which of the following reasons:

a.) DC supply has no frequency

b.) DC supply carries power equal

c.) Both of the above

d.) None of the above

#17. All wiring must be installed so that when completed ______.

a.) it meets the current-carrying requirements of the load

b.) it is free of shorts and unintentional grounds

c.) it is acceptable of Code compliance authorities

d.) it will withstand a hy-pot test

#18. Bonding does which of the following:

a.) Provides electrical continuity

b.) Regulates the voltage

c.) Controls the load on the system installation

d.) All of the above

#19. Who shall be the executive officer of the Board of Electrical Engineering and shall also conduct the examination given by the board, as provided in Art. II, Sec 9, of the New Electrical Engineering Law?

a.) A member of the Board of Electrical Engineering

b.) The President of the Philippines

c.) The commissioner of the Professional Regulation Commission

d.) The Chairman of the Board of Electrical Engineering

#20. A generic term for a group of non-flammable synthetic chlorinated hydrocarbons used as electrical insulating media:

a.) askarel

b.) acid

c.) chloragorm

d.) solder

#21. Which of the following forms of electrical equipment is not considered a device?

a.) Receptacle

b.) Light bulb

c.) Three-way switch

d.) Disconnect switch

#22. In a dry-type transformer with a primary to secondary turns ratio of 4:1, if the primary is rated at 480 volts, then the secondary voltage will be which of the following?

a.) 1200 volts

b.) 240 volts

c.) 480 volts

d.) 120 volts

#23. ______ has the highest electrical breakdown strength and the longest life over all other materials used for insulation.

a.) rubber insulation

b.) impregnated paper

c.) woven cloth

d.) thermoplastic

#24. Which of the following terms is used to describe the inductive action, which causes current to flow on the outer surface of a conductor:

a.) Halo effect

b.) Skin effect

c.) Inductance

d.) Insulated par value

#25. 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.

a. inverse time

b. adjustable

c. control vented

d. vented power

#26. Which of the following is used to control speed in a DC motor:

a.) Field winding

b.) Ground fault breaker

c.) A primary transformer

d.) A bonding jumper

#27. Who comprises the present Board of Electrical Engineering? I. Rodolfo Peñalosa – Chairman II. Fortunato C. Leynes – Chairman III. Fortunato Leynes – Chairman Jaime Mendoza – Member Francis V. Mapile – Member Edward Mendoza – Member Edward Mendoza – Member Jaime V. Mendoza – Member Francis Mapile – Member

a.) I

b.) II

c.) III

d.) none of the above

#28. Tinning rubber insulated twisted cable is done to ____________.

a.) make the strands stronger

b.) prevent chemical reactions between the copper and the rubber

c.) increase the resistance

d.) meet NEMA requirements

#29. Which of the following is a characteristic of a wye-connected three-phase alternator?

a.) the line current is less than the phase current

b.) the line voltage is equal to the phase voltage

c.) the line voltage is greater than the phase voltage

d.) the line current is greater than the phase current

#30. Who will accomplish box 2 of Application for Electrical Permit form?

a.) Professional Electrical Engineer who signed and sealed specification

b.) Electrical Contractor

c.) Person In-Charge of Installation

d.) Owner/Authorized Representative

#31. The most important reason for using a condulet-type fitting in preference to making a bend in a one inch conduit is to _____.

a. avoid the possible flattening of the conduit when making the bend

b. cut down the amount of conduit needed

c. make a neater job

d. make wire pulling easier

#32. If a circuit breaker is installed vertically and the handle is flipped up, then the circuit breaker will be which of the following:

a.) Off

b.) On

c.) Unable to operate properly

d.) Locked in place

#33. A foreman in charge of a crew of men preparing to work on a low voltage tension circuit should caution them to _______.

a.) work only when the load is zero

b.) consider the circuit hot at all times

c.) never work on any circuit alone

d.) wait until the circuit has been killed

#34. Before using a megger it should be tested by placing the test leads together and turning the crank. What will be the reading to indicate that the leads and megger are in good condition?

a.) between 100 to 1,000

b.) above 1,000

c.) below 100

d.) 0

#35. Devices are equipment that carry current, but do not perform which of the following functions?

a.) Serve a grounding function

b.) Provide overcurrent protection

c.) Utilize electric energy

d.) Control power

#36. Based on the diagram options below, which figure illustrates a 3-phase electrical system where one ungrounded conductor has a higher voltage to the ground than the other hot conductor?

a.) Figure A

b.) Figure B

c.) Figure C

d.) Figure D

#37. Instrument use to measure specific gravity of the liquid in a storage battery.

a.) micrometer

b.) hydrometer

c.) calorimeter

d.) viscometer

#38. What type of fastener would you use to mount a box to a hollow tile wall?

a.) expansion bolts

b.) rawl plugs

c.) toggle bolts

d.) bolts with backing plates

#39. Which of the following is not a file type:

a.) Mill

b.) Bastard

c.) Tubular

d.) Half round

#40. In a high-leg delta arrangement on a switchboard with bus bars, phase B would have which of the following:

a.) The highest voltage to ground c.) The lowest voltage to ground b.) The highest ampacity

b.) The highest ampacity

c.) The lowest voltage to ground

d.) The lowest ampacity

#41. A fuse under normal load would most likely become hot because of which of the following conditions:

a.) The rating of the fuse is too low for the application.

b.) Insufficient pressure at the fuse clips

c.) A surge in power has occurred.

d.) A lightning strike

#42. Which of the following colors of insulation or markings are not allowed to identify hot phase conductors:

a.) Black and red for 120/208 volt systems

b.) Yellow or orange for 277/480 volt systems

c.) White or gray

d.) All of the above

#43. A machinery limit switch is used for which of the following purposes:

a.) To close the circuit when the current exceeds a preset limit

b.) To open the circuit when temperature reaches a preset limit

c.) To open the circuit when travel reaches a preset limit

d.) To limit voltage drops

#44. Which of the following has the highest electrical resistance:

a.) Water

b.) Iron

c.) Paper

d.) Brass

#45. If excessive amounts of metal in or on a building become energized and could be subject to personal contact, which of the following will provide additional safety measures:

a.) Adequate bonding and grounding

b.) Bonding

c.) A bonding jumper

d.) None of the above

#46. According the Kirchoff’s current law, electrical current will do which of the following in parallel circuits:

a.) Combine in the parallel path

b.) Divide and flow through each parallel path

c.) Increase in voltage

d.) Experience a voltage drop

#47. How do you call a diagram showing the physical location of the components such as coils, contacts, motors and the like in their actual positions?

a.) ladder diagram

b.) schematic diagram

c.) wiring diagram

d.) power flow diagram

#48. The voltage drop in a line can be decreased by ________. a. increasing the wire size b. increasing the current c. decreasing the load

a. I only

b. I & II only

c. I, II & III

d. I & III only

#49. Which of the following is NOT a safe practice when lifting heavy items?

a.) use the arm leg and muscles

b.) keep lifting a heavy object until you get help

c.) keep your back as upright as possible

d.) keep your feet spread apart

#50. If the voltage is doubled the ampacity of a conductor ________.

a.) increases

b.) decreases

c.) doubles

d.) remains the same

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