Journeyman Closed Book Exam 9 | REE Board Exam

This is the Multiple Choice Questions Part 9 of the Series in Journeyman Closed Book Exam as one of the Electrical Engineering Board Exam and Registered Master Electrician References. In Preparation for the REE and REE Board Exam make sure to expose yourself and familiarize yourself with each and every question compiled here taken from various sources including but not limited to past Board Exam Questions in the Electrical Engineering field, Electrical Engineering Books, Journals and other Electrical Engineering References.

Continue Practice Exam Test Questions Part 9 of the Series

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Choose the letter of the best answer in each question.

1. To control a ceiling light from five different locations it requires which of the following?

a. Four 3-way switches and one 4-way switches

b. Three 4-way switches and two 3-way switches

c. Three 3-way switches and two 4-way switches

d. Four 4-way switches and one 3-way switches

2. The advantage of AC over DC includes which of the following?

a. Better speed control

b. Lower resistance at higher current

c. Ease of voltage variation

d. Impedance is greater

3. Which of the following is considered the best electrical conductor?

a. Iron wire

b. Copper wire

c. Aluminum wire

d. Tin wire

4. The liquid in a battery is called the _________.

a. Askarel

b. Festoon

c. Hermetic

d. Electrolyte

5. A color coded is used in multiple-conductor cables. For 3-conductor cable the colors would be ________.

a. One black, one red and one white

b. Two black and one red

c. One white, one black and one blue

d. Two red and one black

6. Explanatory material in the Code is characterized by _____________.

a. The word “shall”

b. FPN

c. The word “may”

d. The word “could”

7. The identified grounded conductor of a lighting circuit is always connected to the screw of a light socket to _________.

a. Reduce the possibility of accidental shock

b. Ground the light fixture

c. Improve the efficiency of the lamp

d. Provide the easiest place to connect the wire

8. A _______ box may be waterproof.

a. Watertight

b. Rainproof

c. Raintight

d. All of these

9. The Code requires that all AC phase conductors where used, the neural and all equipment grounding conductors be grouped together when using metal enclosures or raceways. The principal reason for this is _________.

a. Currents would circulate through individual raceways

b. Less expensive to install a single raceway

c. Less labor hours for pulling wires in a single raceway

d. Conductors are easier to pull in a single raceway

10. Installing more than three current carrying conductors in the same conduit requires ________.

a. A larger conduit

b. High heat rated conductors

c. Derating of ampacity

d. Continuous loading

11. A ______ helps prevent arcing in movable contacts.

a. Spring

b. Condenser

c. Resistor

d. Hydrometer

12. The _______ circuit is that portion of a wiring system prior to the final overcurrent protective device protecting the circuit.

a. Service

b. Feeder

c. Power

d. Branch

13. When tightening a screw on a terminal, the end of the conductor should wrap around the screw in the same direction that you are turning the screw so that ___________.

a. When you pull on the conductor it will tighten

b. The screw will not become loose

c. The conductor will act as a locking nut

d. The conductor will not turn off

14. Determining a positive wire on a single-phase circuit is _________.

a. Possible with a wattmeter

b. Possible with a voltmeter

c. Possible with an ammeter

d. An impossibility

15. A________ is used for testing specific gravity.

a. Thermocouple

b. Megger

c. Hydrometer

d. Galvanometer

16. An autotransformer differs from each other types of transformers in that ________.

a. Its primary winding is always largest than its easier secondary winding

b. It can be used only in automobiles

c. Its primary and secondary winding are common to each other

d. It must be wound with heavier wire

17. Where the _____ is likely to be high, asbestos insulation on the conductor would be a good choice.

a. Temperature

b. Humidity

c. Voltage

d. Amperage

18. If the end of a cartridge fuse becomes warmer than normal, you should _________.

a. Tighten the fuse clips

b. Lower the voltage on the circuit

c. Notify the utility company

d. Change the fuse

19. Which of the following is the poorest conductor of electricity?

a. Mercury

b. Aluminum

c. Carbon

d. Silver

20. The primary winding of a loaded step-down transformer has _______ compared to the secondary winding.

a. Lower voltage and current

b. Higher voltage and current

c. Higher voltage and lower the current

d. Lower voltage and higher current

21. Copper is used for the tip of a soldering iron because _________.

a. Copper will not melt

b. Copper is very good conductor of heat

c. Solder will not stick to other alloys

d. Copper is less expensive

22. The sum of the voltage drop around a circuit is equal to the source voltage is ________.

a. Kirchhoff’s Law

b. Ohm’s Law

c. Nevin’s Law

d. Faraday’s Law

23. Piezoelectric is caused by crystals or binding ________.

a. Chemical

b. Battery

c. Pressure

d. Heat

24. Heavy duty lampholders include _________.

a. Admedium lampholders rated at 660 watts

b. Lampholders used on circuits larger than 20 amperes

c. Lampholders rated at not less than 750 watts

d. All of the above

25. The reason for installing electrical conductors in a conduit is ___________.

a. To provide a ground

b. To increase the ampacity of the conductors

c. To protect the conductors from damage

d. To avoid derating for continuous load of conductors

26. Discoloring of one end of a fuse normally indicates ______________.

a. Increased current

b. Excessive voltage

c. Low resistance

d. Poor contact

27. Wing nuts are useful on equipment where ___________.

a. Cotter pins are used

b. The nuts must be removed frequently

c. A wrench cannot be used

d. Screws cannot be used

28. When resistors are connected in series, the total resistance is __________.

a. The sum of the individual resistance values

b. The equivalent of the smallest resistance value

c. The equivalent of the largest resistance value

d. Less than the value of the smallest resistance

29. If a value 120 volt incandescent light bulb is operating at a voltage of 125 volts, the result will be ________.

a. It may be enough to blow a fuse

b. The bulb won’t be as bright

c. Shorter life of the bulb

d. The wattage will be less than rated

30. Laminations are used in transformers to prevent ____________.

a. Copper loss

b. Weight

c. Eddy current loss

d. Counter EMF

31. The Code requires which of the following colors for the equipment grounding conductor?

a. White or gray

b. Green or green with yellow stripes

c. Yellow

d. Blue with a yellow stripes

32. Sometimes mercury toggle switches are used in place of a regular toggle switch because they _________.

a. Are easier to connect

b. Do not wear out as quickly

c. Are less expensive

d. They glow in the dark

33. The assigned color for the high-leg conductor of a three-phase, 4-wire delta secondary is ________.

a. Red

b. Black

c. Blue

d. Orange

34. The Code rule for maximum 90 degree bends in a conduit between two boxes is four, the most likely reason for the total 360 degree limitation is ____________.

a. It is safe

b. It makes pulling the conductors through the conduit too difficult

c. You can damage the galvanized coating on the conduit

d. Too many bends require extra wire to be pulled

35. The correct word to define wiring which is not concealed is ____________.

a. Open

b. Uncovered

c. Exposed

d. Bare

36. A solenoid is a __________.

a. Relay

b. Permanent magnet

c. Dynamo

d. Electromagnet

37. An electrician should always consider the circuit to be “hot” unless he definitely knows otherwise. The main reason is to avoid _____________.

a. Personal injury

b. Having to find the panel

c. Saving time

d. Shutting off the wrong circuit

38. The best thing to cut PVC conduit within a tight area is __________.

a. A short hacksaw

b. A nylon string

c. A knife

d. A pipe cutter

39. If a live conductor is contacted accidentally, the severity of the electrical shock is determined primarily by __________.

a. The size of the conductor

b. Whether the current is DC or AC

c. The current in the conductor

d. The contact resistance

40. Ohm’s Law is _____________.

a. An equation for determining power

b. The relationship between voltage, current and power

c. The relationship between voltage, current and resistance

d. A measurement of wattage losses

41. What is the normal taper on a standard conduit thread-cutting die?

a. ½” per foot

b. ¼” per foot

c. 3/8” per foot

d. ¾” per foot

42. In an AC circuit the ratio of the power in watts to the total volt-amps is called the ________.

a. Demand factor

b. Power factor

c. Turns-ratio

d. Diversity factor

43. The total load on any overcurrent device located in a panelboard shall not exceed ______ of its rating where the normal operation the load will continue for three hours or more.

a. 80%

b. 125%

c. 70%

d. 50%

44. Four heaters, each having a resistance of 30 ohms, are connected in series across a 600-volt train circuit. The current is ___________ amperes.

a. 5

b. 17

c. 20

d. 80

45. A ladder which is painted is a safety hazard mainly because the paint ____________.

a. May conceal weak spots in the rails or rungs

b. Is slippery after drying

c. Causes the wood to crack more quickly

d. Peels and the sharp edges of the paint may cut the hands

46. The chemical used as the agent in fire extinguishers to fight electrical fires is ________.

a. CO₂

b. K_OH

c. H₂O

d. L_O6

47. A location classified as _____ may be temporarily subject to dampness and wetness.

a. Dry

b. Damp

c. Moist

d. Wet

48. The average dry cell battery gives an approximate voltage of __________.

a. 1.5

b. 1.2

c. 1.7

d. 2.0

49. The ________ circuit is that portion of a wiring system beyond the final overcurrent protection.

a. Lighting

b. Feeder

c. Signal

d. Branch

50. What is the voltage between points Y and Z?

a. 72 volt

b. 120 volts

c. 24 volts

d. 144 volts