CFC Certification Latest 2024 Complete Exam
Actual Questions with 100% Correct Verified
Answers/ Graded A+
Which of the following is an indication of a leak in a high pressure system?
a) High head pressure
b) low water temperature
c) excessive superheat
d) frequent purging - Correct Answer - c) excessive superheat
Recovery refrigerant in the vapor phase will reduce the loss of:
a) time
b) oil
c) water
d) refrigerant - Correct Answer - b) oil
After installation of a new system, the unit should FIRST be:
a) evacuated
b) pressurized with R-22 and leak checked
c) pressurized with R-12 and leak checked
d) pressurized with nitrogen and leak checked - Correct Answer - d) pressurized with
nitrogen and leak checked
In system using a rotary compressor the component directly following the
condenser is the:
a) Receiver
pg. 1
,b) Metering device
c) Accumulator
d) Evaporator - Correct Answer - a) Receiver
System dependent recovery equipment CAN NOT be used when:
a) the compressor is functional
b) the ambient temp. is more than 105 F
c) the appliance contains more than 15 lbs of refrigerant
d) the appliance is leaking - Correct Answer - c) the appliance contains more than 15 lbs
of refrigerant
HCFC based blends are what kind of a replacement for CFC refrigerants:
a) drop-in
b) permanent
c) interim
d) emergency - Correct Answer - C) Interim
The dividing points between the high and low sides of a refrigerant system are:
a) metering device & evaporator
b) compressor suction valve(s) and the condenser inlet
c) compressor discharge valve(s) and the metering devices
d) the king valve and the evaporator - Correct Answer - a) metering device and
evaporator
Very high pressure appliances are ones that have a boiling below:
a) 32 F
b) -20 F
c) -40 F
d) -58 F - Correct Answer - d) -58 F
pg. 2
, High pressure appliances are ones that use refrigerants with a boiling pint
between:
a) 32 F and 0 F
b) -20 F and -30 F
c) -58 F and 50 F
d) -112 F and 0 F - Correct Answer - c) -58 F and 50 F
Low pressure appliances are systems using refrigerants with a boiling point:
a) above 50 F
b) above 40 F
c) above 0 F
d) -58 F - Correct Answer - a) above 50 F
The capacity of a vacuum pump and its suction line size will determine:
a) where the hose is connected to the system
b) the length of the dehydration line
c) the type of refrigerant that can be charged
d) the viscosity of the oil that can be used in the system - Correct Answer - b) the length
of the dehydration line
Evacuation of a system id a suggested method of:
a) pinpointing leaks
b) acid removal
c) dehydration
d) all of the above - Correct Answer - c) dehydration
Which chemicals are controlled by the Montreal Protocol?
a) CFC's
b) HCFC's
pg. 3
Actual Questions with 100% Correct Verified
Answers/ Graded A+
Which of the following is an indication of a leak in a high pressure system?
a) High head pressure
b) low water temperature
c) excessive superheat
d) frequent purging - Correct Answer - c) excessive superheat
Recovery refrigerant in the vapor phase will reduce the loss of:
a) time
b) oil
c) water
d) refrigerant - Correct Answer - b) oil
After installation of a new system, the unit should FIRST be:
a) evacuated
b) pressurized with R-22 and leak checked
c) pressurized with R-12 and leak checked
d) pressurized with nitrogen and leak checked - Correct Answer - d) pressurized with
nitrogen and leak checked
In system using a rotary compressor the component directly following the
condenser is the:
a) Receiver
pg. 1
,b) Metering device
c) Accumulator
d) Evaporator - Correct Answer - a) Receiver
System dependent recovery equipment CAN NOT be used when:
a) the compressor is functional
b) the ambient temp. is more than 105 F
c) the appliance contains more than 15 lbs of refrigerant
d) the appliance is leaking - Correct Answer - c) the appliance contains more than 15 lbs
of refrigerant
HCFC based blends are what kind of a replacement for CFC refrigerants:
a) drop-in
b) permanent
c) interim
d) emergency - Correct Answer - C) Interim
The dividing points between the high and low sides of a refrigerant system are:
a) metering device & evaporator
b) compressor suction valve(s) and the condenser inlet
c) compressor discharge valve(s) and the metering devices
d) the king valve and the evaporator - Correct Answer - a) metering device and
evaporator
Very high pressure appliances are ones that have a boiling below:
a) 32 F
b) -20 F
c) -40 F
d) -58 F - Correct Answer - d) -58 F
pg. 2
, High pressure appliances are ones that use refrigerants with a boiling pint
between:
a) 32 F and 0 F
b) -20 F and -30 F
c) -58 F and 50 F
d) -112 F and 0 F - Correct Answer - c) -58 F and 50 F
Low pressure appliances are systems using refrigerants with a boiling point:
a) above 50 F
b) above 40 F
c) above 0 F
d) -58 F - Correct Answer - a) above 50 F
The capacity of a vacuum pump and its suction line size will determine:
a) where the hose is connected to the system
b) the length of the dehydration line
c) the type of refrigerant that can be charged
d) the viscosity of the oil that can be used in the system - Correct Answer - b) the length
of the dehydration line
Evacuation of a system id a suggested method of:
a) pinpointing leaks
b) acid removal
c) dehydration
d) all of the above - Correct Answer - c) dehydration
Which chemicals are controlled by the Montreal Protocol?
a) CFC's
b) HCFC's
pg. 3
