Iowa Electrician Exam 32

Question 1 of 25

1. Question

All 125 volt, single-phase, 15 and 20 ampere receptacle outlets installed within _______________ must be provided with GFCI protection.

vehicle showrooms

locker rooms with associated showering facilities

6 feet of an electric drinking fountain

All of the above

Question 2 of 25

2. Question

Lampholders installed over highly combustible material shall be ________________.

installed to maintain a clearance of not less than 36 in. from the material

totally enclosed by high-tempered wire-type glass

of the unswitched type

rated for temperatures of not less than 90° C

Question 3 of 25

3. Question

Which of the following cable types is an acceptable substitute for Type OFNP cable?

OFCP

OFNR

OFN

None of the above

Question 4 of 25

4. Question

A 40 in. wide panelboard has been installed in an electrical equipment room inside of a shopping mall. What is the minimum required width of working space required in front of this panelboard?

24 in.

30 in.

40 in

42 in.

Question 5 of 25

5. Question

Where metallic plugs or plates are used with nonmetallic electrical enclosures, they shall be recessed at least __________ from the outer surface of the enclosure.

⅛ in.

¼ in.

⅜ in.

½ in.

Question 6 of 25

6. Question

When rock is encountered, ground rods must be driven at an angle not to exceed __________ from the vertical.

45°

60°

75°

90°

Question 7 of 25

7. Question

Footlights, border lights, and proscenium sidelights used for theater stage lighting shall be arranged so that no branch circuit supplying such equipment carries a load exceeding _____________.

15 amperes

16 amperes

20 amperes

30 amperes

Question 8 of 25

8. Question

Nonmetallic boxes shall be permitted to be used with metal raceways _____________.

at all times

when installed in dry or damp locations only

when internal bonding means are provided between all entries

When an equipment grounding conductor is installed in all raceways

Question 9 of 25

9. Question

The branch-circuit, short-circuit, and ground-fault protective device for hermetic refrigerant motor compressors shall have a rating not exceeding __________ of the rated-load current or branch-circuit selection current, whichever is greater.

100%

115%

125%

175%

Question 10 of 25

10. Question

Automatic transfer switches used for emergency systems shall be __________________.

mechanically operated and electrically held

electrically operated and mechanically held

mechanically operated and mechanically held

electrically operated and electrically held

Question 11 of 25

11. Question

What minimum number of 20 ampere small-appliance branch circuits is required to be provided for every dwelling unit?

2

3

4

5

Question 12 of 25

12. Question

Which of the following alternating-current electrical systems operating at less than 50 volts is not allowed to be grounded?

Where supplied by transformers if the supply system exceeds 150 volts to ground.

Where supplied by transformers if the supply system is ungrounded.

Where installed outdoors as overhead conductors.

Circuits for electric cranes operating over combustible fibers in Class III locations.

Question 13 of 25

13. Question

Lighting systems operating at __________ or less shall be listed as a complete system.

12 volts

24 volts

30 volts

125 volts

Question 14 of 25

14. Question

Direct buried conductors and cables emerging from grade shall be protected by enclosures and raceways to a point at least _________ above finished grade.

30 in.

7 ft. 6 in.

8 ft.

12 ft.

Question 15 of 25

15. Question

__________ for liquidtight flexible metal conduit shall not be concealed.
I. Straight fittings
II. Angle connectors

I only

II only

Both I and II

Neither I nor II

Question 16 of 25

16. Question

Listed flexible metal conduit that encloses the secondary circuit conductor from a neon transformer shall be permitted as a bonding means, for bonding metal parts of a sign, if the total length of the conduit in the secondary circuit does not exceed ____________.

15 ft.

25 ft.

50 ft.

100 ft.

Question 17 of 25

17. Question

Where rear access is required to work on nonelectrical parts on the back of enclosed electrical switchgear, a minimum horizontal working space of ____________ shall be provided.

24 in.

30 in.

36 in.

42 in.

Question 18 of 25

18. Question

Where run across the top of floor joists in accessible attics, or within ________ of the floor or floor joists across the face of rafters or studding, Type AC cable shall be protected by guard strips that are at least as high as the cable.

3 ft.

5 ft.

6 ft.

7 ft.

Question 19 of 25

19. Question

Class 3 single conductors used as other wiring within buildings shall not be smaller than ___________.

18 AWG

16 AWG

14 AWG

12 AWG

Question 20 of 25

20. Question

The radius of the inner bend of Type MI cable shall not be less than _________ time the external diameter of the metallic sheath for cable greater than ¾ in. but not more than 1 in. in external diameter.

5

8

10

12

Question 21 of 25

21. Question

Main contact conductors, for cranes, carried along runways shall be supported on insulating supports placed at intervals not exceeding ___________.

30 ft.

20 ft.

12 ft.

10 ft.

Question 22 of 25

22. Question

After all derating factors have been applied, what is the allowable ampacity of a 6/2 with ground, copper, Type NM cable?

65 amperes

55 amperes

52 amperes

44 amperes

Question 23 of 25

23. Question

Terminations provisions for circuits rated 100 amperes or less shall be used for conductors rated __________ unless the equipment is listed and identified for use with conductors with higher temperature ratings.

105° C

90° C

75° C

60° C

Question 24 of 25

24. Question

What is the total resistance of a circuit containing 2 – 20 ohm resistors wired in parallel?

40 ohms

20 ohms

30 ohms

10 ohms

Question 25 of 25

25. Question

The voltage drop at the line terminals of a fire pump controller shall not drop more than __________ below normal under motor starting conditions.

3%

5%

7 ½%

15%