NCCER 26208-17 Questions and
Answers Already Graded A
To properly install heat-shrink insulators, _____. ✔✔Slip the insulator over the connector and
apply heat for a few seconds
When used in control cable, which of the following must be grounded in order to be effective?
✔✔Drain wires
To determine the correct connector size for MC cable, _____. ✔✔Refer to the manufacturer
literature
Burnishes, nicks, and scrapes are generally the result of which of the following? ✔✔Poorly
stripped conductors
When stripping conductors, be sure to _____. ✔✔Cut the insulation so that no frayed pieces or
threads extend past the point of cut off
Which of the following inscriptions on a wire connector indicates that it is designed for use on
both copper and aluminum wire? ✔✔AL-CU
Answers Already Graded A
To properly install heat-shrink insulators, _____. ✔✔Slip the insulator over the connector and
apply heat for a few seconds
When used in control cable, which of the following must be grounded in order to be effective?
✔✔Drain wires
To determine the correct connector size for MC cable, _____. ✔✔Refer to the manufacturer
literature
Burnishes, nicks, and scrapes are generally the result of which of the following? ✔✔Poorly
stripped conductors
When stripping conductors, be sure to _____. ✔✔Cut the insulation so that no frayed pieces or
threads extend past the point of cut off
Which of the following inscriptions on a wire connector indicates that it is designed for use on
both copper and aluminum wire? ✔✔AL-CU
