HVAC Excellence Gas Heat Practice Questions - HVAC Excellence Master Specialist - Gas Heat (Written Examination) Exam - HVAC Excellence Gas Heat Practice Questions - HVAC Excellence Master Specialist

Question 1

A standard mid-efficiency (80% AFUE) gas furnace uses an induced-draft blower. What is the primary purpose of that inducer motor?

To circulate conditioned air through the supply ducts To pull combustion products through the heat exchanger and establish a controlled draft To cool the electronic control board To pressurize the gas manifold to firing pressure

Correct Answer:

To pull combustion products through the heat exchanger and establish a controlled draft

Question 2

A condensing gas furnace is rated at 95% AFUE. Which design feature is most directly responsible for that high efficiency?

A standing pilot instead of hot-surface ignition A secondary heat exchanger that condenses water vapor from the flue gases A larger orifice that increases firing rate A natural-draft Category I vent system

Correct Answer:

A secondary heat exchanger that condenses water vapor from the flue gases

Question 3

The typical manifold (outlet) gas pressure for a natural-gas furnace at high fire is closest to:

0.5 in. WC 3.5 in. WC 11 in. WC 28 in. WC

Correct Answer:

3.5 in. WC

Question 4

A propane (LP) furnace is set to the correct manifold pressure. That pressure is closest to:

3.5 in. WC 7 in. WC 10-11 in. WC 0.3 psi

Correct Answer:

10-11 in. WC

Question 5

Clocking the gas meter on a natural-gas furnace, a technician finds it takes 36 seconds to burn 1 cubic foot of gas. Using a heating value of 1,000 BTU per cubic foot, what is the firing input rate?

36,000 BTU/hr 60,000 BTU/hr 100,000 BTU/hr 120,000 BTU/hr

Correct Answer:

100,000 BTU/hr

Question 1

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About this Exam

Prepare with the HVAC Excellence Gas Heat Practice Questions - HVAC Excellence Master Specialist - Gas Heat (Written Examination) Exam practice quiz. This question bank includes 100 questions covering furnace, pressure, technician, valve, and combustion. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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HVAC Excellence Gas Heat Practice Questions - HVAC Excellence Master Specialist - Gas Heat (Written Examination) Exam

This practice set contains 100 questions from the matching question bank and focuses on furnace, pressure, technician, valve, and combustion. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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HVAC Excellence Gas Heat Practice Questions - HVAC Excellence Master Specialist - Gas Heat (Written Examination) Exam

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