NATE Gas Heating Exam: 2026 /
2027 Review | 50 Comprehensive
Test Questions and Verified
Answers | 100% Correct | Grade A
(Newest Update)
Quiz_________________?
Since 1992, the United States Department of Energy has required that all furnaces sold
and installed from that date on must have an AFUE of no less than:
A: 70%
B: 75%
C: 78%
D: 80% -
Answer☑️
C: 78%
Quiz_________________?
Many pre-1992 furnaces have efficiencies around _______.
A: 10%
B: 40%
C: 60%
D: 80% -
Answer☑️
C: 60%
1
, Quiz_________________?
Today, furnaces with AFUE ratings greater than _____ are available.
A: 85%
B: 90%
C: 100%
D: 110% -
Answer☑️
B: 90%
Quiz_________________?
A thermocouple is used with:
A: Intermittent pilot systems
B: Direct spark ignition systems
C: Glow coil ignition systems
D: Standing pilot ignition systems -
Answer☑️
D: Standing pilot ignition systems
Quiz_________________?
The purpose of the gas pressure regulator is to:
A: Keep the color of the flame constant
B: Keep the high limit switch from tripping
C: Maintain a constant gas pressure at the burner
D: Allow the gas valve to operate smoothly and accurately -
Answer☑️
C: Maintain a constant gas pressure at the burner
Quiz_________________?
The instrument used to measure outlet gas pressure is the:
A: Velometer
B: Anemometer
2
, C: Monometer
D: Draft gauge -
Answer☑️
C: Monometer
Quiz_________________?
The regulator on a natural gas furnace should be adjusted to supply _____ inches of
pressure at the burners.
A: 11"
B: 10"
C: 3.5"
D: 2" -
Answer☑️
C: 3.5"
Quiz_________________?
Burning one cubic foot of natural gas releases approximately _____ btu.
A: 800
B: 1,050
C: 12,000
D: 15,000 -
Answer☑️
B: 1,050
Quiz_________________?
Under ideal conditions natural gas has an ignition temperature of _______ degrees F
and a burning temperature of ________ degrees F.
A: 800 degrees, 1000 degrees
B: 1,100 degrees, 3,500 degrees
C: 1,100 degrees, 5,000 degrees
D: 2,500 degrees, 8,000 degrees -
Answer☑️
B: 1,100 degrees, 3,500 degrees
3
2027 Review | 50 Comprehensive
Test Questions and Verified
Answers | 100% Correct | Grade A
(Newest Update)
Quiz_________________?
Since 1992, the United States Department of Energy has required that all furnaces sold
and installed from that date on must have an AFUE of no less than:
A: 70%
B: 75%
C: 78%
D: 80% -
Answer☑️
C: 78%
Quiz_________________?
Many pre-1992 furnaces have efficiencies around _______.
A: 10%
B: 40%
C: 60%
D: 80% -
Answer☑️
C: 60%
1
, Quiz_________________?
Today, furnaces with AFUE ratings greater than _____ are available.
A: 85%
B: 90%
C: 100%
D: 110% -
Answer☑️
B: 90%
Quiz_________________?
A thermocouple is used with:
A: Intermittent pilot systems
B: Direct spark ignition systems
C: Glow coil ignition systems
D: Standing pilot ignition systems -
Answer☑️
D: Standing pilot ignition systems
Quiz_________________?
The purpose of the gas pressure regulator is to:
A: Keep the color of the flame constant
B: Keep the high limit switch from tripping
C: Maintain a constant gas pressure at the burner
D: Allow the gas valve to operate smoothly and accurately -
Answer☑️
C: Maintain a constant gas pressure at the burner
Quiz_________________?
The instrument used to measure outlet gas pressure is the:
A: Velometer
B: Anemometer
2
, C: Monometer
D: Draft gauge -
Answer☑️
C: Monometer
Quiz_________________?
The regulator on a natural gas furnace should be adjusted to supply _____ inches of
pressure at the burners.
A: 11"
B: 10"
C: 3.5"
D: 2" -
Answer☑️
C: 3.5"
Quiz_________________?
Burning one cubic foot of natural gas releases approximately _____ btu.
A: 800
B: 1,050
C: 12,000
D: 15,000 -
Answer☑️
B: 1,050
Quiz_________________?
Under ideal conditions natural gas has an ignition temperature of _______ degrees F
and a burning temperature of ________ degrees F.
A: 800 degrees, 1000 degrees
B: 1,100 degrees, 3,500 degrees
C: 1,100 degrees, 5,000 degrees
D: 2,500 degrees, 8,000 degrees -
Answer☑️
B: 1,100 degrees, 3,500 degrees
3
