RETA TEST 1(2026) QUESTIONS AND
ANSWERS GRADED A+
what does temperature indicate
intensity of heat energy in an object
what is required to move heat from one object to another
temperature difference
which of these is required to obtain a valid reading from a pressure temperature
chart
the refrigerant must be in a saturated condition
which of these is an essential component of a mechanical refrigeration system
expansion device
what is a function of a compressor in a mechanical refrigeration system
, to accept vapor from the evaporator and compress it to increase its pressure and
temperature
which of these accurately describes subcooled liquid
liquid cooled below at saturation pressure
what does the term compression ratio refer to
the ratio of discharge pressure to suction pressure in PSIA
which refrigerant is more forgiving to moisture in the refrigeration system
R-717
which of these is most likely to occur when air leaks into a refrigeration system
an increase in compressor discharge pressure
which of these is the greatest risk from closing valves on each end of a liquid line
between a liquid pump and an evaporator during maintenance of an ammonia
refrigeration system
rupture of the line if the liquid warms
ANSWERS GRADED A+
what does temperature indicate
intensity of heat energy in an object
what is required to move heat from one object to another
temperature difference
which of these is required to obtain a valid reading from a pressure temperature
chart
the refrigerant must be in a saturated condition
which of these is an essential component of a mechanical refrigeration system
expansion device
what is a function of a compressor in a mechanical refrigeration system
, to accept vapor from the evaporator and compress it to increase its pressure and
temperature
which of these accurately describes subcooled liquid
liquid cooled below at saturation pressure
what does the term compression ratio refer to
the ratio of discharge pressure to suction pressure in PSIA
which refrigerant is more forgiving to moisture in the refrigeration system
R-717
which of these is most likely to occur when air leaks into a refrigeration system
an increase in compressor discharge pressure
which of these is the greatest risk from closing valves on each end of a liquid line
between a liquid pump and an evaporator during maintenance of an ammonia
refrigeration system
rupture of the line if the liquid warms
