Reta practice test 2023 questions and answers with complete solution
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RAI - RETA Authorized Instructor
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RAI - RETA Authorized Instructor
Reta practice test 2023 questions and answers with complete solution
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 tempe...
reta practice test 2023 questions and answers with
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RAI - RETA Authorized Instructor
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Reta practice test 2023 questions and answers with
complete solution
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
under what conditions do halocarbon refrigerants become most hazardous
when did we come in contact with an open flame
which of these conditions is indicated in an ammonia condenser operating with
180 PSIG pressure at the drain outlet and 90 degrees Fahrenheit liquid
temperature leaving the condenser
non condensables in the condenser
What Will Liquid refrigerant trap in a pipe do when heated
expand
which industrial compressor would be direct drive at 3600 RPM
screw compressor
why is the discharge temperature of a screw compressor lower than the
discharge temperature of a reciprocating compressor
significant quantities of oil flow into the rotor section of a screw compressor
how does the intercooler help the low stage compressor and high stage
compressor
by d superheating low stage compressor discharge temperature
which of these is the primary responsibility of a refrigeration system operator
to track system operations in logs and maintenance records
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