Before checking the switches in the circuit to a non-functioning load, the technician should first check:
A) The resistance of all the devices in the same circuit with the non-functioning device.
B) Line voltage, control voltage, and voltage to the non-functional component.
C) The current draw of the nonfunctioning device.
D) The resistance of the nonfunctioning device.
B
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CAD stands for Computerized Art Drawing.
a. True b. False
All of the following statements are true EXCEPT:
A. voltage differential controls how strongly a load in a circuit is operated. B. when voltage differential is lower than normal, a light will not be as bright or a heater defroster motor will not spin as fast. C. if voltage drops as loads are added to a circuit, flow is increased in the circuit. D. voltage differential is the difference between battery voltage at one end of a circuit and zero voltage on the ground side.
Where is the reversing valve located in a split-system air-to-air heat pump?
a. Air handler b. Indoor coil c. Heat exchanger d. Outdoor unit
A drive shaft rotates at six to eight times the speed of the car's tires.
Answer the following statement true (T) or false (F)