Author Question: A control is ________. A) a power source for a circuit B) the part of a circuit that has ... (Read 70 times)

RRMR · **on:** Jul 26, 2018

A control is ________.

A) a power source for a circuit
B) the part of a circuit that has resistance
C) a switch in a circuit that controls current flow

Question 2

What is the purpose of a chiller economizer?

A) To superheat the liquid refrigerant before it enters the chiller
B) To subcool the liquid refrigerant before it enters the chiller
C) To limit the compressor current draw
D) To use outdoor air for cooling