IDA-201 Final Assessment 2

Front

A common practice in condensing units is to use a contactor with only one set of contacts opening only one side of the power to the unit. This is to ____.

Back

provide off-cycle heat to the compressor

Front

Beside maintaining pressure on the contacts for current carrying capacity, the pressure springs have a second important function. This is to ____.

Back

help obtain equal contacts against the stationary contacts

Front

When a contactor's coil is energized, how much resistance should be measured between terminal "L1" and terminal "T1"?

Back

zero ohms

Front

An inherent motor protector is a ____.

Back

thermally activated device in the motor winding

Front

The service factor of an electric motor is determined by ____.

Back

motor's reserve capacity

Front

Standards for motor overload protection are set by the ____.

Back

National Electrical Code

Front

A solder pot is part of a ____.

Back

resettable circuit breaker

Front

Which of the following overload devices is not affected by ambient temperature? Options: magnetic, solder pot, bimetal, time-delay fuse

Back

magnetic

Front

The locked rotor amperage, LRA, of a motor is typically five times higher than the full load amperage, FLA, of the motor and can be as high as seven times the FLA. True or False?

Back

True

Front

A set of contacts are closed when the relay is energized. These contacts are classified as normally closed.

Back

False