Exam (elaborations)
NATE Gas Heating Exam Questions with Correct Answers 2023
NATE Gas Heating Exam Questions with Correct Answers 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% -AnsC: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% -AnsC: 60% Today, furnaces with AFUE ratings greater than _____ are available. A: 85% B: 90% C: 100% D: 110% -AnsB: 90% A thermocouple is used with: A: Intermittent pilot systems B: Direct spark ignition systems C: Glow coil ignition systems D: Standing pilot ignition systems -AnsD: Standing pilot ignition systems The purpose of the gas pressure regulator is to:
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nate gas heating exam questions with correct answe
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