120 QUESTIONS AND CORRECT DETAILED ANSWERS \VERIFIED
ANSWERS \ALREADY GRADED A+ ||ASSURED PASS|LATEST
UPDATE 2025-2026
The normal compression D: 2.75 to 3.75
ratio for a typical comfort
air conditioning Compression rate = discharge pressure (psia) / suction
application should be in pressure (psia)
the range of
A: 1 to 2
B: 1.5 to 2.25
C: 2 to 3
D: 2.75 to 3.75
,All else being normal, if a C: A partial refrigerant restriction
system shows a high
lowside superheat with
high condenser
subcooling, what is most
likely the problem?
A: Refrigerant overcharge
B: Refrigerant
undercharge
C: A partial refrigerant
restriction
D: There is probably no
problem
,All else being normal, if a A: Refrigerant overcharge
system shows a low
lowside superheat with
high condenser
subcooling, what is most
likely the problem?
A: Refrigerant overcharge
B: Refrigerant
undercharge
C: A partial restriction
D: There is probably no
problem
All else being normal, if a B: Refrigerant undercharge
system shows a high
lowside superheat with
low condenser
subcooling, what is most
likely the problem?
A: Refrigerant overcharge
B: Refrigerant
undercharge
C: A partial restriction
D: There is probably no
problem
, A grille equipped with a B: A register
damper control is called
A: A vane
B: A register
C: A louver
D: A damper
A pressure relief valve is A: Direct pressure acting
A: Direct pressure acting
B: Remote pressure
activated
C: Manually operated
D: Reverse pressure acting