NATE Gas Exam Preparation Version 2 Newest With Complete Questions And Correct Detailed Answers| Brand New Version!

NATE Gas Exam Preparation Version 2 Newest 2026-
2027 With Complete Questions And Correct Detailed
Answers| Brand New Version!




Placing a jumper wire between the "R" terminal and the "W" terminal
on a thermostat sub-base will energize the:


A: Gas valve


B: Indoor fan motor


C: Outdoor fan motor


D: Compressor - ANSWER-A: Gas valve


Carbon monoxide is a:


A: Product of incomplete combustion



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,B: Poisonous gas


C: Odorless gas


D: All of the above are correct - ANSWER-D: All of the above are correct


The chemical symbol for carbon monoxide is:


A: CO2


B: CO


C: H2O


D: NH3 - ANSWER-B: CO


Selecting a lower speed tap setting on a furnace indoor blower motor
will cause:


A: The temperature rise through the furnace to increase



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, B: The temperature rise through the furnace to decrease


C: The temperature rise through the furnace will not be affected


D: The furnace to act as a humidifier - ANSWER-A: The temperature
rise through the furnace to increase


"Carry over" channels or "cross overs" are used to:


A: Carry unused excess fuel back to the flue where it is sent up the
stack


B: Carry primary air to the heat exchanger


C: Carry secondary air to the heat exchanger


D: Carry the flame from the first burner that lights to the remaining
burners - ANSWER-D: Carry the flame from the first burner that lights to
the remaining burners


Modern high-efficiency burners use combustion blowers. What are the
two major types of combustion blowers?

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