ELE 137 Quiz 2

According to NEC® Table 220.12, armories and auditoriums should have a calculated unit load of at least ____ volt-amperes per square meter.

11

For show window lighting, allow ____ voltamperes per linear foot (660 volt-amperes per linear meter), or use the connected load if that value is higher.

110

When sizing conductors and overcurrent protection, you must take 100 percent of the noncontinuous loads plus ____ percent of the continuous loads.

125

NEC® Article ____ applies to motors, including those that are a part of motor-operated appliances unless "specifically amended" by NEC® Article 422.

430

NEC® Article ____ addresses air-conditioning and refrigeration equipment that incorporates hermetic refrigeration motor-compressor(s).

440

The allowable ampacity of a 4 AWG THHN conductor is 95 amperes. If we have four 4 AWG THHN conductors, what is the adjusted ampacity?

76

If the ambient temperature anywhere along the length of a raceway is less than 78 degrees F or higher than ____ degrees F, the ampacity of the conductors in the raceway, or cable, must be modified by a correction factor.

86

A single piece of equipment consisting of a multiple receptacle comprised of four or more receptacles shall be calculated at not less than ____ volt-amperes per receptacle.

90

Although several different types of insulation are listed in the NEC®, there are only three different temperature ratings: 60 degrees C, 75 degrees C, and ____ degrees C.

90

Multioutlet branch-circuit ratings are limited to 15-, 20-, 30-, 40-, and 50-ampere except on ____ premises, where they may have a higher rating.

Commercial

NEC® Table 310.15(B)(16) places the wires available for building construction into two categories: ____ and aluminum.

Copper

For motors, the OCPDs are ____.

Inverse-time circuit breakers

Metal raceways not properly grounded could become "____" and present a shock hazard.

Live

To plan any electrical wiring project, the first step is to determine the ____ that the electrical system is to serve.

Load

High harmonic currents associated with ____ loads cause havoc by overheating the neutral conductor.

Non-linear

The purpose of the National Electrical Code® is the practical safeguarding of ____ from hazards arising from the use of electricity.

Persons and property

At least one ____ is required to be installed above each linear 12 ft (3.7 m) section of show window.

Receptacle outlet

In general, the letter-type designation R formerly referred to a ____-based covering and now indicates thermoset insulation.

Rubber

Whenever a grouping of more than ____ current-carrying conductors exists, an adjustment factor from NEC® Table 310.15(B)(3)(a) must be applied.

Three