Conductors and Cables Supplemental Excerises

The designation for one thousand circular mils is ____________

1 kcmil

When conductors are installed where the ambient temperature is above ____________, the conductor ampacity must be reduced proportionally with the increase in temperature.

30°C (86°F)

Which of the following represents the largest wire size?

4/0

Type MV cable is suitable for ____________.

All of the above

____________ is the maximum current in amperes a conductor can carry continuously under the conditions of use without exceeding its temperature rating.

Ampacity

Polyethylene is used primarily for insulation of ____________.

Control and Communications Wiring

True or False? Polyethylene is the base material used for the manufacture of TW and THW insulation.

False

True or False? Type NMC is suitable for use as service-entrance cable.

False

Type UF cable ____________.

Is suitable for direct burial

A(n) ____________ is a piston-like plug that is attached to a string or rope for pulling through conduit using a power fishing system.

Mouse

Some jackets have a(n) ____________ that allows the jacket to be peeled back without the use of a knife or cable cutter.

Nylon rip cord

What does the letter R stand for with regard to insulation coding?

Rubber

True or False? All current-carrying conductors (including the grounded conductor) must be insulated when used on the inside of buildings.

True

True or False? NEC Table 310.16 covers conductors rated up to 2,000V where not more than three conductors are installed in a raceway or cable.

True

A(n) ____________ is a circle that has a diameter of 1 mil.

circular