Air Conditioning Certification Exam Newest 2026
Questions and Correct Detailed Answers Already
Graded A+
The first function of a condenser must perform is to __________ the refrigerant
before condensing can occur. - CORRECT ANSWER-De-superheat
A dirty evaporator in an air conditioning system will cause these symptoms... -
CORRECT ANSWER-Low suction pressure and low discharge pressure
If a small air conditioner has only a very low, insignificant refrigerant pressure
drop through the evaporator coil, the manufacturer may use... - CORRECT
ANSWER-An internal equalized thermostatic expansion valve
An air conditioning system that is oversized can cause.... - CORRECT ANSWER-
inefficient dehumidification of the conditioned space
A faulty condenser fan motor on an air conditioning system will cause these
symptoms..... - CORRECT ANSWER-High suction pressure and high discharge
pressure
, When connecting copper to steel the recommended brazing filler alloy is a... -
CORRECT ANSWER-45 percent silver alloy
A partially iced over evaporator can be caused by... - CORRECT ANSWER-An
undercharge
Heat added to the refrigerant in vapor state after the evaporation process is
called.... - CORRECT ANSWER-Superheat
Why must refrigerant in the suction line be slightly warmer than the saturation
temperature? - CORRECT ANSWER-Prevent liquid slugging of the compressor
Heat which causes a change of temperature of substance is called.... - CORRECT
ANSWER-Sensible heat
The thermostatic expansion valve has three operating pressures.... - CORRECT
ANSWER-Evaporator pressure, spring pressure, and sensor bulb pressure
What is the maximum operating pressure setting for an acetylene torch? -
CORRECT ANSWER-15 psig
Questions and Correct Detailed Answers Already
Graded A+
The first function of a condenser must perform is to __________ the refrigerant
before condensing can occur. - CORRECT ANSWER-De-superheat
A dirty evaporator in an air conditioning system will cause these symptoms... -
CORRECT ANSWER-Low suction pressure and low discharge pressure
If a small air conditioner has only a very low, insignificant refrigerant pressure
drop through the evaporator coil, the manufacturer may use... - CORRECT
ANSWER-An internal equalized thermostatic expansion valve
An air conditioning system that is oversized can cause.... - CORRECT ANSWER-
inefficient dehumidification of the conditioned space
A faulty condenser fan motor on an air conditioning system will cause these
symptoms..... - CORRECT ANSWER-High suction pressure and high discharge
pressure
, When connecting copper to steel the recommended brazing filler alloy is a... -
CORRECT ANSWER-45 percent silver alloy
A partially iced over evaporator can be caused by... - CORRECT ANSWER-An
undercharge
Heat added to the refrigerant in vapor state after the evaporation process is
called.... - CORRECT ANSWER-Superheat
Why must refrigerant in the suction line be slightly warmer than the saturation
temperature? - CORRECT ANSWER-Prevent liquid slugging of the compressor
Heat which causes a change of temperature of substance is called.... - CORRECT
ANSWER-Sensible heat
The thermostatic expansion valve has three operating pressures.... - CORRECT
ANSWER-Evaporator pressure, spring pressure, and sensor bulb pressure
What is the maximum operating pressure setting for an acetylene torch? -
CORRECT ANSWER-15 psig
