REFRIGERATION OPERATING
ENGINEER LICENSE 2025 QUESTIONS
WITH PASSED SOLUTIONS!!
, Don't know?
2 of 97
Term
An AXV system responds to an undercharge by low suction pressure
and bubbles in the ___.
Give this one a try later!
Receiver tank Sight glass
Filter drier Expansion valve
Don't know?
3 of 97
Term
R-502 refrigerant cylinder color.
Give this one a try later!
Sunflower Orchid
, Heather Grass
Don't know?
4 of 97
Term
Of the three regions of the ultraviolet spectrum, the ___ region is the
one doing the most harm at ground level.
Give this one a try later!
UV-C UV-B
Infrared UV-A
Don't know?
5 of 97
Term
The AXV metering valve maintains a ___ in the evaporator.
Give this one a try later!
Constant temperature Variable flow
, Specific pressure Fixed humidity
Don't know?
6 of 97
Term
Switch that can provide low charge protection by shutting down the
system on low pressure.
Give this one a try later!
Fan switch Low pressure switch
High pressure switch Motive flow switch
Don't know?
7 of 97
Term
The recommended alternative for CFC-11 is ___ for use in centrifugal
chillers.
Give this one a try later!
ENGINEER LICENSE 2025 QUESTIONS
WITH PASSED SOLUTIONS!!
, Don't know?
2 of 97
Term
An AXV system responds to an undercharge by low suction pressure
and bubbles in the ___.
Give this one a try later!
Receiver tank Sight glass
Filter drier Expansion valve
Don't know?
3 of 97
Term
R-502 refrigerant cylinder color.
Give this one a try later!
Sunflower Orchid
, Heather Grass
Don't know?
4 of 97
Term
Of the three regions of the ultraviolet spectrum, the ___ region is the
one doing the most harm at ground level.
Give this one a try later!
UV-C UV-B
Infrared UV-A
Don't know?
5 of 97
Term
The AXV metering valve maintains a ___ in the evaporator.
Give this one a try later!
Constant temperature Variable flow
, Specific pressure Fixed humidity
Don't know?
6 of 97
Term
Switch that can provide low charge protection by shutting down the
system on low pressure.
Give this one a try later!
Fan switch Low pressure switch
High pressure switch Motive flow switch
Don't know?
7 of 97
Term
The recommended alternative for CFC-11 is ___ for use in centrifugal
chillers.
Give this one a try later!
