To properly install heat-shrink insulators, _____.
apply heat for a few seconds and then install the insulator
use PVC cement on the insulator before applying any heat
slip the insulator over the connector and apply heat for a few seconds
tape the insulator in place before applying heat
Which of the following inscriptions on a wire connector indicates that it is designed for use on both copper and aluminum wire?
CSA
UL
AL-AL
AL-CU
A true statement concerning solid versus stranded conductors is _____.
the same size stripping tool may be used for both
the wire diameters are the same in both types
there is no difference in the two types
the diameters are different
Before a splice or connection can be made to a Type THHN conductor, the _____.
conductor ends must be stripped and cleaned
length must be measured
thickness of the insulation must be measured
ends should be wrapped with THHN tape
15. Which of the following eliminates the need for taping and the use of filler tape?
Heat-shrink insulator
Parallel-tap connector
Motor connection kit
Wire nut
The NEC® section that governs electrical connections and splices is _____.
NEC Article 725
NEC Section 110.14
NEC Table 312.4
NEC Section 240.21