Reta Test 1 questions with verified answers

Reta Test 1 questions with verified answers what does temperature indicate -Correct Answer-intensity of heat energy in an object what is required to move heat from one object to another -Correct Answer-temperature difference which of these is required to obtain a valid reading from a pressure temperature chart -Correct Answer-the refrigerant must be in a saturated condition which of these is an essential component of a mechanical refrigeration system -Correct Answer-expansion device what is a function of a compressor in a mechanical refrigeration system -Correct Answer-to accept vapor from the evaporator and compress it to increase its pressure and temperature which of these accurately describes subcooled liquid -Correct Answer-liquid cooled below at saturation pressure what does the term compression ratio refer to -Correct Answer-the ratio of discharge pressure to suction pressure in PSIA which refrigerant is more forgiving to moisture in the refrigeration system -Correct Answer-R-717 which of these is most likely to occur when air leaks into a refrigeration system -Correct Answer-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 -Correct Answer-rupture of the line if the liquid warms under what conditions do halocarbon refrigerants become most hazardous -Correct Answer-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 -Correct Answer-non condensables in the condenser