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Worksheets

Journeyman 08 - Nth

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

1. Using 1.5 volt dry cell, the voltage between A and B would be ___________.

a)

1.5

b)

4

c)

6

d)

12

2.

2. A rigid conduit connecting to an outlet box should have a _________.

a)

Bushing and locknut on the outside

b)

Bushing on the outside and a locknut on the inside

c)

Locknut and bushing on the inside

d)

Locknut on the outside and a bushing on the inside

3.

3. Identified, as used in the Code in reference to a conductor or its terminal, means that such a conductor or terminal is to be recognized as ____________.

a)

Grounded

b)

Bonded

c)

Colored

d)

Marked

4.

4. A toaster will produce less heat on low voltage because ______________.

a)

Its total watt output decreases

b)

The current will decrease

c)

The resistance has not changed

d)

All of these

5.

5. If the current flow through a conductor is increased, the magnetic field around the conductor _____________.

a)

Is changed

b)

Becomes stronger

c)

Collapses

d)

Becomes weaker

6.

6. Comparing a #6 to a #10 conductor of equal lengths, the #6 will have lower ________.

a)

Cost

b)

Weight

c)

Resistance

d)

Strength

7.

7. The definition of ambient temperature is _____________.

a)

The temperature of the conductor

b)

The insulation rating of the conductor

c)

The temperature of the area surrounding the conductor

d)

The different temperature

8.

8. The primary reason for using a hacksaw blade with fine teeth rather than coarse teeth when cutting large stranded conductors is _____________.

a)

A coarse blade would overheat the conductor

b)

A coarse blade breaks too easil

c)

To avoid snagging or pulling strands

d)

A fine blade will bend easier

9.

9. The stranded residential service is a 3-wire, 240 volt single-phase system. The maximum voltage to ground in this system would be __________ volts.

a)

115

b)

120

c)

199

d)

208

10.

10. When working on a motor, the electrician should ____ to prevent accidental starting of the motor.

a)

Remove the fuses

b)

Ground the motor

c)

Shut off the switch

d)

Remove the belts

11.

11. It is the responsibility of the electrician to make sure his tools are in good condition because ___.

a)

Defective tool can cause accidents

b)

The boss may want to use them

c)

The company will pay for only one set of tools

d)

A good job requires perfect tools

12.

12. Continually overloading a conductor is a poor practice because it causes ___________.

a)

The conductor to melt

b)

The insulation to deteriorate

c)

The conductor to shrink

d)

Damage the raceway

13.

13. For better illumination you would __________.

a)

Random spacing of lights

b)

Even spacing, numerous lights

c)

Evenly spaced, higher ceilings

d)

Cluster lights

14.

14. A junction box above a lay-in ceiling is considered _________.

a)

Concealed

b)

Accessible

c)

Readily accessible

d)

Recessed

15.

15. Which of the following metals is most commonly used in the filament of a bulb?

a)

Aluminum

b)

Mercury

c)

Tungsten

d)

Platinum

16.

16. Electrical equipment can be defined as ______________.


I. Fittings

II. Appliances

III. Devices

IV. Fixtures

a)

I only

b)

I & IV only

c)

I,III & IV only

d)

All of these

17.

17. If two equal resistance conductors are connected in parallel, the resistance of the two conductors is equal to ____________.

a)

The resistance of one conductor

b)

Twice the resistance of one conductor

c)

One-half the resistance of one conductor

d)

The resistance of both conductors

18.

18. Wire connections should encircle binding posts in the ______ manner the nut turns to tighten.

a)

Opposite

b)

Same

c)

Reverse

d)

Different

19.

19. Which of the following is a limit switch?

a)

A

b)

B

c)

C

d)

D

20.

20. The primary and secondary windings of a transformer always have __________.

a)

A common magnetic circuit

b)

The same size

c)

Separate magnetic circuits

d)

The same number of turns

21.

21. Which of the following is not the force which moves electron?

a)

EMF

b)

Voltage

c)

Potential

d)

Current

22.

22. A motor with a wide speed range is a __________.

a)

DC motor

b)

AC motor

c)

Synchronous motor

d)

Induction motor

23.

23. The “stator” of an AC generator is another name for the ____________.

a)

Rotating portion

b)

Slip rings

c)

Stationary portion

d)

Housing

24.

24. Where galvanized conduit is used, the main purpose of the galvanizing is _________.

a)

Slow down rust

b)

Provide better continuity

c)

Provide better strength

d)

Provide a better surface for painting

25.

25. To lubricate a motor sleeve bearing you would use ___________.

a)

Grease

b)

Vaseline

c)

Oil

d)

Graphite

26.

26. When soldering conductors, flux is used ___________.

a)

To heat the conductors quicker

b)

To keep the surfaces clean

c)

To prevent loss of heat

d)

To bond the conductors

27.

27. _____ means so constructed or protected that exposure to the weather will not interfere with successful operation.

a)

Weatherproof

b)

Weather tight

c)

Weather resistant

d)

All weather

28.

28. The current used for charging storage batteries is ___________.

a)

Square-wave

b)

Direct

c)

Alternating

d)

Variable

29.

29. You should close a knife switch firmly and rapidly as there will be less ___________.

a)

Likelihood of arcing

b)

Wear on the contacts

c)

Danger of shock

d)

Energy used

30.

30. If one complete cycle occurs in 1/30 of a second, the frequency is ____________.

a)

30 hertz

b)

60 Cycle

c)

115 cycle

d)

60 hertz

31.

31. An instrument that measures electrical energy is called the ___________.

a)

Galvanometer

b)

Wattmeter

c)

Dynamometer

d)

Watt-hour meter

32.

32. In electrical wiring, “wire nuts” are used to ___________.

a)

Connect wires to terminals

b)

Join wires and insulate the joints

c)

Connect the electrode

d)

Tighten the panel studs

33.

33. Which of the following would be the best metal for a magnet?

a)

Steel

b)

Aluminum

c)

Lead

d)

Tin

34.

34. An electrician may use a megger _____________.

a)

To determine the RPM of a motor

b)

To determine the output of a motor

c)

To check the wattage

d)

To test a lighting circuit for a ground.

35.

35. The least important thing in soldering two conductors together is to _____________.

a)

Use plenty of solder

b)

Use sufficient heat

c)

Clean the conductors

d)

Use the proper flux

36.

36. The property of a circuit tending to prevent the flow of current and at the same time causing energy to be converted into heat is referred to as _____________.

a)

The inductance

b)

The resistance

c)

The capacitance

d)

The reluctance

37.

37. Rigid conduit is generally secured to outlet boxes by ___________.

a)

Beam clamps

b)

Locknuts and bushings

c)

Set screw

d)

Offsets

38.

38. Which one of the following is not a safe practice when lifting heavy items?

a)

Use the arm and leg muscles

b)

Keep your back as upright as possible

c)

Keep lifting a heavy object until you get help

d)

Keep your feet spread apart

39.

39. A thermocouple will transform _________ into electricity.

a)

Current

b)

Heat

c)

Work

d)

Watts

40.

40. In a residence the wall switch controlling the ceiling light is usually ____________.

a)

Connected across both lines

b)

A double pole switch

c)

Connected in one line only

d)

A 4-way switch

41.

41. A switch which opens automatically when the current exceeds a predetermined limit would be called a ______________.

a)

Limit switch

b)

Circuit breaker

c)

DT disconnect

d)

Contactor

42.

42. A wattmeter is a combination of which two of the following meters?

I. Ammeter

II. Ohmmeter

III. Phase meter

IV. Volt meter

V. Power factor meter

a)

II & III

b)

I & V

c)

I & IV

d)

II & V

43.

43. What would the ohmmeter read?

a)

100 ohms

b)

200 ohms

c)

125 ohms

d)

50 ohms

44.

44. Acid is not considered a good flux when soldering conductors because it ______________.

a)

Smells bad

b)

Is corrosive

c)

Is non-conductive

d)

Costs too much

45.

45. If the spring tension on a cartridge fuse clip is weak, the result most likely would be ___________.

a)

The fuse would blow immediately

b)

The fuse clips would become warm

c)

The voltage to the load would increase

d)

The supply voltage would increase

46.

46. The branch circuit loads specified by the Code for lighting and receptacles are considered ____.

a)

Minimum loads

b)

Maximum loads

c)

Loads to be served

d)

Peak loads

47.

47. The conductor with the highest insulation temperature rating is _____________.

a)

RH

b)

TW

c)

THWN

d)

THHN

48.

48. After cutting a conduit, to remove the rough edges on both ends, the conduit ends should be ____.

a)

Reamed

b)

Filed

c)

Sanded

d)

Ground

49.

49. To fasten a raceway to a solid concrete ceiling, you would use ___________.

a)

Toggle bolts

b)

Expansion bolts

c)

Wooden plugs

d)

Rawl plugs

50.

50. A commutator of a generator should be cleaned with which of the following?

a)

Emery cloth

b)

Graphite

c)

A smooth file

d)

Fine sandpaper