Page 1 of 10
HVACR GAS HEATING ESCO EXAM | FREQUENTLY
TESTED QUESTIONS WITH CORRECT ANSWERS |
BRAND NEW!
How many of the 3 OSHA conditions defining confined spaces
must be met - ✔✔✔ Correct Answer > all 3
A furnace is converted from natural gas, there is soot, why - ✔✔✔
Correct Answer > low gas pressure
Btu/hr / 1.08 x td calculates - ✔✔✔ Correct Answer > CFM
Btu is the amount of heat requires to raise the temp of 1lb of
water... - ✔✔✔ Correct Answer > 1 degree fahrenheit
Heating thermostates have anticipators to - ✔✔✔ Correct Answer >
reduce temp swing
The lowest concentration of fuel that ignites is - ✔✔✔ Correct Answer
> LEL
, Page 2 of 10
The volts of a hot surface igniter is - ✔✔✔ Correct Answer > 120 volts
Thermostats contain 1+ sets of contacts to control heating, they
are - ✔✔✔ Correct Answer > thermally actuated
Adjustable shutters - ✔✔✔ Correct Answer > mix primary and gas
60000 btu/h operating at 50% air - ✔✔✔ Correct Answer > 600 cu ft
Vent stack temp on a natural draft furnace is - ✔✔✔ Correct Answer >
350-450f
1/2 and 3/4 black pipe is installed, cut how many threads - ✔✔✔
Correct Answer > 10-12
A furnace with the blower motor above the heat exchanger is a -
✔✔✔ Correct Answer > downflow
ASHRAE specify how much CO - ✔✔✔ Correct Answer > 9ppm
Air mixed with natural gas is - ✔✔✔ Correct Answer > primary air
HVACR GAS HEATING ESCO EXAM | FREQUENTLY
TESTED QUESTIONS WITH CORRECT ANSWERS |
BRAND NEW!
How many of the 3 OSHA conditions defining confined spaces
must be met - ✔✔✔ Correct Answer > all 3
A furnace is converted from natural gas, there is soot, why - ✔✔✔
Correct Answer > low gas pressure
Btu/hr / 1.08 x td calculates - ✔✔✔ Correct Answer > CFM
Btu is the amount of heat requires to raise the temp of 1lb of
water... - ✔✔✔ Correct Answer > 1 degree fahrenheit
Heating thermostates have anticipators to - ✔✔✔ Correct Answer >
reduce temp swing
The lowest concentration of fuel that ignites is - ✔✔✔ Correct Answer
> LEL
, Page 2 of 10
The volts of a hot surface igniter is - ✔✔✔ Correct Answer > 120 volts
Thermostats contain 1+ sets of contacts to control heating, they
are - ✔✔✔ Correct Answer > thermally actuated
Adjustable shutters - ✔✔✔ Correct Answer > mix primary and gas
60000 btu/h operating at 50% air - ✔✔✔ Correct Answer > 600 cu ft
Vent stack temp on a natural draft furnace is - ✔✔✔ Correct Answer >
350-450f
1/2 and 3/4 black pipe is installed, cut how many threads - ✔✔✔
Correct Answer > 10-12
A furnace with the blower motor above the heat exchanger is a -
✔✔✔ Correct Answer > downflow
ASHRAE specify how much CO - ✔✔✔ Correct Answer > 9ppm
Air mixed with natural gas is - ✔✔✔ Correct Answer > primary air
