NATE GAS HEATING EXAM QUESTIONS WITH CORRECT ANSWERS

NATE GAS HEATING EXAM QUESTIONS WITH CORRECT ANSWERS
Question :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%
Correct answer: C: 78%
Question :Many pre-1992 furnaces have efficiencies around
_______.
A: 10%
B: 40%
C: 60%
D: 80%
Correct answer: C: 60%

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