G2 EXAM QUIZ BANK UPDATE) QUESTIONS AND VERIFIED ANSWERS| 100% CORRECT| GRADE A

G2 EXAM QUIZ BANK UPDATE) QUESTIONS AND VERIFIED ANSWERS| 100% CORRECT| GRADE A
The type of heat exchanger associated with a forced air
combination system is
ANSWER: A water to air type
ANSWER: Forced air combination systems typically use waterto-air heat exchangers to transfer heat.
How is a high limit tested on a forced warm air furnace?
ANSWER: By disconnecting the air circulating blower
ANSWER: Disconnecting the blower simulates overheating,
testing the high limit switch’s response.
As the gauge number of a conductor decreases, the voltage drop
across the conductor
ANSWER: Decreases
ANSWER: A lower gauge number means thicker wire, reducing
resistance and voltage drop.
Causes cold denser outdoor air to enter through openings in the
lower portion of the building envelope, where it is heated, and
exit through openings in the upper building envelope where the
building essentially becomes a chimney
ANSWER: Stack effect
ANSWER: Stack effect drives air movement due to temperature
and pressure differences.

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