10/22/2024 19:29 PM
HVAC Journeyman Test Exam Questions
And Answers 100% Pass
Sensible Heat - answer✔Heat that can be Measured
Specific Heat - answer✔The Amount of Heat Required to Raise 1 LB of a Substance 1*F
Latent Heat - answer✔Heat used to cause change of state.
BTU - answer✔amount of heat required to raise 1LB of water 1*F
One Ton of Refrigeration - answer✔2000 x 144 x 24,288,000 Btu/24hours, and 12,000 Btu/hr
A Room Thermostat Should be Mounted - answer✔5 feet from the floor
To Provide Proper Oil Return to the Compressor - answer✔Suction line must be pitched towards
compressor.
What is the External Equalizer on a TXV for? - answer✔To offset the pressure drop across the
evaporator.
What is the Minimum Bending Radius of 1" soft Copper? - answer✔5"
What is the Heating Value of Natural Gas? - answer✔1,000 BTU/cu FT.
What is the Purpose of Fan Control? - answer✔Start and Stop the Fan Motor
What is a Limit Control? - answer✔De-Energizes the gas firing circuit upon high bonnet temps.
What is a unconfined space? - answer✔A space whose volume is greater than 50 cu.ft./ 1,000
BTU/h of total input of all gas fired appliances.
Total free area of a 15" x 24" combustion air opening used with a metal grill with a unknown
free area? - answer✔270 sq. in.
What is a confined space? - answer✔A space whose volume is less then 50 CU. ft./ 1000 BTU/h
of total gas fired appliance input.