An air conditioner with a fixed restriction metering device is operating with an evaporator saturation temperature of 40°F and a suction line temperature of 42°F. The factory specified superheat for the current operating condition is 12°F. After checking the airflow and determining that it is within specifications, the technician should:
A) Move some of the charge from the low side of the system to the high side of the system to balance the charge.
B) Leave the charge alone because it is cooling even better than factory specifications.
C) Recover charge because the system is overcharged.
D) Add charge because the system is undercharged.
C
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services say such work constitutes ____ of their annual income.
a. up to one tenth c. up to forty percent b. up to one quarter d. up to one half
What is the normal maximum vehicle height on a tractor-trailer combination used on our highways?
A. 144 inches B. 12 feet, 6 inches C. 13 feet D. 13 feet, 6 inches
Analog circuits are typically not used for which of the following applications?
A) Signal mixing B) Decoding C) Waveshaping D) Transforming voltage to current
The electromotive force that causes electrons to move along a conductor is called:
A) Capacitance. B) Voltage. C) Amperage. D) Resistance.