As the outdoor ambient temperature increases, the required superheat:
A) Decreases.
B) Increases.
C) Outdoor ambient temperature does not affect superheat.
D) Stays the same.
A
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Referring to the figure shown below, technician A says that switch 1 and switch 2 provide a ground for the low air lamp when closed. Technician B says that switch 1 and switch 2 provide a ground for the speedometer/tachometer module to cause an alarm to sound. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
It takes two complete camshaft revolutions and one revolution of the crankshaft to complete one engine cycle.
Answer the following statement true (T) or false (F)
What are the most common loads in HVACR systems?
A) Wires B) Lights C) Motors D) Resistance heaters
Eddy current loss in a transformer is ________
A) caused by rapid reversal of the magnetic field B) another name for flux leakage loss C) due to current flowing in the core D) caused by the resistance of the wire