ENGINEER LICENSE 2025 QUESTIONS
WITH PASSED SOLUTIONS!!
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2 of 97
Term
An AXV system responds to an undercharge by low suction pressure
and bubbles in the ___.
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Receiver tank Sight glass
Filter drier Expansion valve
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3 of 97
Term
R-502 refrigerant cylinder color.
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Sunflower Orchid
, Heather Grass
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4 of 97
Term
Of the three regions of the ultraviolet spectrum, the ___ region is the
one doing the most harm at ground level.
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UV-C UV-B
Infrared UV-A
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5 of 97
Term
The AXV metering valve maintains a ___ in the evaporator.
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Constant temperature Variable flow
, Specific pressure Fixed humidity
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6 of 97
Term
Switch that can provide low charge protection by shutting down the
system on low pressure.
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Fan switch Low pressure switch
High pressure switch Motive flow switch
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7 of 97
Term
The recommended alternative for CFC-11 is ___ for use in centrifugal
chillers.
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