Match the symptom with all possible causes. Note: The choices can be used more than once.
A. refrigerant overcharge
B. refrigerant undercharge
C. blocked/dirty filter
D. non-condensable gas in system
E. defective condenser fan motor
F. defective evaporator fan motor
G. improper system balancing
H. dirty condenser coil
I.
J.
K.
A. high operating pressures
B. low operating pressures
C. low operating pressures
D. high operating pressures
E. high operating pressures
F. low operating pressures
G. uneven cooling
H. high operating pressures
I. frozen evaporator coil
J. low superheat
K. high superheat
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Symptoms associated with overheating include all of the following except _____.
a. pale, clammy skin b. cramps c. headache and nausea d. gray, tingling skin
Most of the heat energy in the suction vapor entering the compressor is ____.
A. subcooled from the condenser B. superheated from the condenser C. superheated from the evaporator D. subcooled from the evaporator
A segment of a circle is a figure formed by an arc and the chord joining the end points of the arc.
Answer the following statement true (T) or false (F)
In a series RL circuit ET = 120 V, R = 150 ?, and XL = 270 ?. What is the reactive power?
A. 36.62 VARs B. 40.75 VARs C. 42.64 VARs D. 53.39 VARs