NATE Gas & Heat Newest Exam / NATE Gas & Heat Preparation With Rationales /NATE Gas & Heat Exam Practice Exam With 500 Questions And Correct Answers| Newest Version!!!

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NATE Gas & Heat Newest Exam / NATE Gas & Heat
Preparation With Rationales /NATE Gas & Heat Exam
Practice Exam With 500 Questions And Correct
Answers| Newest Version!!!


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%


Many pre-1992 furnaces have efficiencies around
_______.


A: 10%

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B: 40%


C: 60%


D: 80% - Answer-C: 60%


Today, furnaces with AFUE ratings greater than _____ are
available.


A: 85%


B: 90%


C: 100%


D: 110% - Answer-B: 90%


A thermocouple is used with:


A: Intermittent pilot systems

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B: Direct spark ignition systems


C: Glow coil ignition systems


D: Standing pilot ignition systems - Answer-D: Standing
pilot ignition systems


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