PEC Quizzer Elimination

Transformers are rated in_________.

• kW

• kV

• kWH

• kVA

In the computation of the size of building wire, the PEC requires that at least a certain percent increase must be added. What percent is this?

• 15%

• 20%

• 25%

• 50%

A device designed to open and close a circuit by nonautomatic means and to open the circuit

automatically on a predetermined overcurrent without damage to itself when properly applied

within its rating.

• Circuit breaker

• disconnect

• relay

• switch

Installations under ground or in concrete slabs or masonry in direct contact with the earth; in

locations subject to saturation with water or other liquids, such as vehicle washing areas; and

in unprotected locations exposed to weather.

• Moist Location

• Wet Location.

• proof location

• Dry Location

What shall be the minimum size of conductor for signage?

• 2.0 sq mm.

• 3.5 sq. mm

• 5.5 sq mm

• 8.0 sq mm

At least _____wall switch-controlled lighting outlet shall be installed in every habitable room

and bathroom.

• one

• two

• three

• none

Circuits used only for the operation of fire alarm, other protective signaling systems, or the

supply to fire pump equipment _________to be connected on the supply side of the service

overcurrent device where separately provided with overcurrent protection

• not stated in the code

• shall not be permitted

• not required by the Code

• shall be permitted

The code ______the use of a raceway as a means of support for nonelectric equipment,

such as suspended ceilings, water pipes, nonelectric signs, and the like, which could cause a

mechanical failure of the raceway.

• allows

• prohibits

• does not mentioned

• does not detail

Determine the minimum-size service conductors to supply a 100 A lighting and appliance

load plus three squirrel-cage induction motors rated 460 volts, 3 phase, 40°C, full-voltage

starting one 100-hp rated at 124 A at full load and two 25-hp motors rated at 34 A at full load

on a 480-volt, 3-phase system.

• 223 A

• 155 A

• 323 A

• 292 A

If the service point is specified as “at the pole” by the utility, then the service-drop conductors

are considered

• service conductor

• service head

• service mast

• service mast