TAP Services

1. Which of the following eliminates the need for taping and the use of filler tape?

Wire nut

Motor connection kit

Heat-shrink insulator

Parallel-tap connector

Question 1 of 20

2. When used in control cable, which of the following must be grounded in order to be effective?

Drain wires

Screw terminals

Crimp connectors

Conductors

Question 2 of 20

3. Wire connectors marked only with the wire size should only be used on ________.

aluminum conductors

aluminum or copper conductors

copper conductors

THWN conductors

Question 3 of 20

4. The NEC® section that governs electrical connections and splices is ________.

NEC Table 312.4

NEC Article 725

NEC Section 110.14

NEC Section 240.21

Question 4 of 20

5. A true statement concerning solid versus stranded conductors is ________.

the wire diameters are the same in both types

the same size stripping tool may be used for both

there is no difference in the two types

the diameters are different

Question 5 of 20

6. Which of the following is true of drain wires in fire alarm and instrumentation cable?

They should be taped back on both ends.

They should be twisted.

Only one end is typically grounded.

They should be No. 24 AWG or smaller.

Question 6 of 20

7. When stripping conductors, be sure to ________.

use cutting tools with jaws that butt against each other

make a chisel point on the conductor end

cut the insulation so that no frayed pieces or threads extend past the point of cutoff

retwist and tighten the wire strands

Question 7 of 20

8. Before a splice or connection can be made to a Type THHN conductor, the ________.

conductor ends must be stripped and cleaned

ends should be wrapped with THHN tape

thickness of the insulation must be measured

length must be measured

Question 8 of 20

9. To position cable so that it is not under tension, it is necessary to ________.

terminate conductors

brace conductors for short circuit stresses

shield conductors

train conductors

Question 9 of 20

10. When installing mechanical connectors, which of the following is used to prevent the formation of surface oxides?

An oxide-promoting joint compound

An oxide-neutral joint compound

An oxide-stabilization joint compound

An oxide-inhibiting joint compound

Question 10 of 20

11. Which of the following inscriptions on a wire connector indicates that it is designed for use on both copper and aluminum wire?

CSA

AL-AL

AL-CU

Question 11 of 20

12. Heat-shrink insulators are intended to provide ________.

rating for duty at increased voltages

strain relief and mechanical protection

suitability for cold weather duty

additional crimping force on the terminal

Question 12 of 20

13. How can you determine the wire size that can be used effectively with an insulated barrel crimp connector?

It is the largest size of wire you can fit into the barrel.

It is indicated by the color-coding of the insulation on the connector.

It is referenced by catalog number.

It is the same as the bolt or screw size permitted.

Question 13 of 20

14. Stripped wire should be inserted into the barrel of the crimper until ________.

the wire is visible through the inspection opening

the insulation butts against the forward stop

the insulation is just inside the barrel

90% of the strands are inside the barrel

Question 14 of 20

15. To determine the correct connector size for MC cable, ________.

use the smallest connector that will fit the conductor

use the correct color coded connector

check the NEC® code

refer to the manufacturer's literature

Question 15 of 20

16. How should terminal space be measured from the end of the lug or wire connector?

In a straight line

At a 90° angle

Starting at the opposite end

Diagonally from the lug to the point where the wire leaves the terminal

Question 16 of 20

17. To properly install heat-shrink insulators, ________.

apply heat for a few seconds and then install the insulator

tape the insulator in place before applying heat

use PVC cement on the insulator before applying any heat

slip the insulator over the connector and apply heat for a few seconds

Question 17 of 20

18. Burnishes, nicks, and scrapes are generally the result of which of the following?

Oscillatory motion

Mechanical vibration

Poorly stripped conductors

Poorly insulated conductors

Question 18 of 20

19. The best electrical tape to use as a protective overwrap on high-voltage cables is ________.

high-temperature silicone rubber

rubber

glass cloth

vinyl plastic

Question 19 of 20

20. A good electrical connection should ________.

have a resistance of no more than 25 ohms

be mechanically and electrically secure

have a resistance of no more than 13 ohms

last for approximately 90 days without any maintenance or repairs

Question 20 of 20

Mailing List

Quick Nav

TAP Services

	FOLLOW US ON SOCIAL MEDIA

TAP Services

Mailing List

Quick Nav

Get Social

TAP Services