NATE Gas Heating Exam Practice Questions and 100% Verified Answers Complete Preparation Material

NATE Gas Heating Exam Practice Questions and
100% Verified Answers – A+ Guaranteed

1. 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%: C: 78%
2. Many pre-1992 furnaces have efficiencies around .


A: 10%


B: 40%


C: 60%


D: 80%: C: 60%
3. Today, furnaces with AFUE ratings greater than are available.


A: 85%




,B: 90%


C: 100%


D: 110%: B: 90%
4. A thermocouple is used with:
A: Intermittent pilot systems
B: Direct sparḱ ignition systems






, C: Glow coil ignition systems


D: Standing pilot ignition systems: D: Standing pilot ignition systems
5. The purpose of the gas pressure regulator is to:


A: Ḱeep the color of the flame constant


B: Ḱeep 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: C: Maintain a constant gas
pressure at the burner
6. The instrument used to measure outlet gas pressure is the:
A: Velometer
B: Anemometer
C: Monometer
D: Draft gauge: C: Monometer
7. 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": C: 3.5"