HVACR GAS HEATING ESCO NEWEST LATEST ACTUAL
2025/2026/ WITH COMPLETE QUESTIONS AND VERIFIED
ANSWERS /GRADED A+
You have installed a Category IV two-pipe vent system that
terminates through the roof of the residence. The elbow for the
combustion air intake, above the roof, should...?
Point down
The reason heating thermostats have anticipators is to:
reduce overshoot
The typical fluw gas temperature of a Category III furnace is:
280 F - 300 F
The proper chemical name for natural gas is:
Methane
Burning one cubic foot of natural gas will produce
approximately ___ BTU's.
,900-1100
A furnace nameplate specifies a temperature rise of 40 to 70
degrees. Temperature measurements indicate a rise of 80
degrees. The most appropriate action is to:
increase fan speed
A BTU is the amount of heat required to raise the temperature
of one pound of water:
one degree Fahrenheit
We have an expert-written solution to this problem!
Natural gas piping must be sized to prevent excessive
pressure drops. The National Fuel Gas Code maximum
pressure drop allowance is approximately:
0.35 in WC
Gas piping must be installed with a pitch of:
1/4" per 15' run
Pipe joint compound should be applied to:
, male threads less two end threads
A technician is installing a copper elbow on LP gas line; what
should be used?
15% silver solder
To burn one cubic foot of Natural Gas completely, AT LEAST
____ of combustion air must be available.
10 cu ft.
The ignition temperature of Natural Gas is ____
1100 F - 1200 F
Air that is mixed with Natural Gas in the BURNER is called:
Primary Air
What is the volume of flue gas produced from a Natural Gas
furnace with a draft diverter?
30 cu ft.
2025/2026/ WITH COMPLETE QUESTIONS AND VERIFIED
ANSWERS /GRADED A+
You have installed a Category IV two-pipe vent system that
terminates through the roof of the residence. The elbow for the
combustion air intake, above the roof, should...?
Point down
The reason heating thermostats have anticipators is to:
reduce overshoot
The typical fluw gas temperature of a Category III furnace is:
280 F - 300 F
The proper chemical name for natural gas is:
Methane
Burning one cubic foot of natural gas will produce
approximately ___ BTU's.
,900-1100
A furnace nameplate specifies a temperature rise of 40 to 70
degrees. Temperature measurements indicate a rise of 80
degrees. The most appropriate action is to:
increase fan speed
A BTU is the amount of heat required to raise the temperature
of one pound of water:
one degree Fahrenheit
We have an expert-written solution to this problem!
Natural gas piping must be sized to prevent excessive
pressure drops. The National Fuel Gas Code maximum
pressure drop allowance is approximately:
0.35 in WC
Gas piping must be installed with a pitch of:
1/4" per 15' run
Pipe joint compound should be applied to:
, male threads less two end threads
A technician is installing a copper elbow on LP gas line; what
should be used?
15% silver solder
To burn one cubic foot of Natural Gas completely, AT LEAST
____ of combustion air must be available.
10 cu ft.
The ignition temperature of Natural Gas is ____
1100 F - 1200 F
Air that is mixed with Natural Gas in the BURNER is called:
Primary Air
What is the volume of flue gas produced from a Natural Gas
furnace with a draft diverter?
30 cu ft.
