HVAC JOURNEYMAN TEST EXAM QUESTIONS WITH COMPLETE
SOLUTIONS VERIFIED 100% GUARANTEED PASS
Sensible Heat
Heat that can be Measured
Specific Heat
The Amount of Heat Required to Raise 1 LB of a Substance 1*F
Latent Heat
Heat used to cause change of state.
BTU
amount of heat required to raise 1LB of water 1*F
One Ton of Refrigeration
2000 x 144 x 24,288,000 Btu/24hours, and 12,000 Btu/hr
A Room Thermostat Should be Mounted
5 feet from the floor
To Provide Proper Oil Return to the Compressor
Suction line must be pitched towards compressor.
What is the External Equalizer on a TXV for?
To offset the pressure drop across the evaporator.
What is the Minimum Bending Radius of 1" soft Copper?
5"
What is the Heating Value of Natural Gas?
1,000 BTU/cu FT.
What is the Purpose of Fan Control?
Start and Stop the Fan Motor
What is a Limit Control?
De-Energizes the gas firing circuit upon high bonnet temps.
What is a unconfined space?
A space whose volume is greater than 50 cu.ft./ 1,000 BTU/h of total input of all gas
fired appliances.
SOLUTIONS VERIFIED 100% GUARANTEED PASS
Sensible Heat
Heat that can be Measured
Specific Heat
The Amount of Heat Required to Raise 1 LB of a Substance 1*F
Latent Heat
Heat used to cause change of state.
BTU
amount of heat required to raise 1LB of water 1*F
One Ton of Refrigeration
2000 x 144 x 24,288,000 Btu/24hours, and 12,000 Btu/hr
A Room Thermostat Should be Mounted
5 feet from the floor
To Provide Proper Oil Return to the Compressor
Suction line must be pitched towards compressor.
What is the External Equalizer on a TXV for?
To offset the pressure drop across the evaporator.
What is the Minimum Bending Radius of 1" soft Copper?
5"
What is the Heating Value of Natural Gas?
1,000 BTU/cu FT.
What is the Purpose of Fan Control?
Start and Stop the Fan Motor
What is a Limit Control?
De-Energizes the gas firing circuit upon high bonnet temps.
What is a unconfined space?
A space whose volume is greater than 50 cu.ft./ 1,000 BTU/h of total input of all gas
fired appliances.
