Exam (elaborations)
Gas Fitting Review- Questions and Answers
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Gas Fitting Review- Questions and Answers
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Gas Fitting Review- Questions andAnswers
Why would a gas fitter complete a house depressurization test? Correct Ans-Spillage from a
category one appliance is suspected
A natural gas pressure regulator installed outdoors should have the vent: Correct Ans-Piped
to a safe location & weather protected
The flow capacity (cfh) of a regulator is determined by Correct Ans-The pressure differential
and the orifice size
What is the main advantage of a regulator with a pitot tube? Correct Ans-Droop is reduced
When ordering a gas pressure regulator you must know which of the following? Correct Ans-
The inlet pressure, outlet pressure, and the connected load in cfh
A room thermostat should be placed where it can measure: Correct Ans-The average
temperature of the room
Flashback creates burning in the mixing tube, incomplete combustion and sooting of the burner.
How could this problem be corrected Correct Ans-Decrease the primary air and/or increase
the pressure
In a Unitrol gas-fired water heater control, what is the purpose of the snap operating
mechanism? Correct Ans-To shut down the burner faster
This appliance shall NOT be installed where sleeping accommodation is provided. Correct
Ans-Direct fired make-up air heater
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