Author Question: A motor starter ________. A) is just a larger version of a relay, since it has only a coil and ... (Read 46 times)

CBme · **on:** Jul 26, 2018

A motor starter ________.

A) is just a larger version of a relay, since it has only a coil and contacts
B) is more like a circuit breaker than a relay in that it can detect excessive heat buildup on the outside of the compressor motor through its heaters
C) has a coil and contacts like a relay or contactor, and it also has overloads to provide overcurrent protection

Question 2

A reversing valve is ________.

A) a special relay used to reverse the direction in which the compressor motor runs
B) a special valve that can be used as either a fill valve or a drain valve for a heat pump
C) a special type of solenoid used in heat pumps