An air conditioner with a thermostatic expansion valve is operating with a condenser saturation temperature of 110°F and a liquid-line temperature of 85°F. The factory-specified subcooling for the current operating condition is 10°F. After checking the condenser coil and airflow, the technician should:
A) Leave the charge alone because it is cooling even better than factory specifications.
B) Recover charge because the system is overcharged.
C) Add charge because the system is undercharged.
D) Move some of the charge from the low side of the system to the high side of the system to balance the charge.
B
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A) When they receive power B) When the relay coil is de-energized C) When the relay coil is energized D) They are always closed because they are closed contacts.
What voltage source is a source that supplies a constant voltage to the circuit for any required current?
A. Practical B. Ideal C. Kirchhoff's D. Constant
ASE-Style Multiple Choice All of the following represent the type of extinguisher that should be used in a class A fire EXCEPT:
A. purple K dry chemical B. water C. foam D. multipurpose dry chemical
More than one view is necessary for any three-dimensional part.
Answer the following statement true (T) or false (F)