RETA CARO Test 1 QUESTIONS WITH COMPLETE 100% VERIFIED SOLUTIONS 2024/2025, Exams of Refrigeration and Air Conditioning

Download RETA CARO Test 1 QUESTIONS WITH COMPLETE 100% VERIFIED SOLUTIONS 2024/2025 and more Exams Refrigeration and Air Conditioning in PDF only on Docsity! RETA CARO Test 1 QUESTIONS WITH COMPLETE 100% VERIFIED SOLUTIONS 2024/2025 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 which of these functions are required by the operator to complete logs properly Monitor and record system temperatures, pressures levels and product temperatures. which of these should be done first when a reciprocating compressor starts to pound or makes an unusual loud noise. turn off the compressor. which of these most accurately describes when hydraulic pounding in a reciprocating compressor is taking place. when liquid refrigerant enters the compression chamber. which statement most accurately describes characteristics of a reciprocating compressor in a refrigeration system. heat of compression maintains oil temperature whenever the compressor is on. which statement most accurately describes a characteristic of rotary vane compressors. they are cooled with an oil jacket. which of these should not be a part of normal operation procedure to stop a rotary vane compressor manually shut off the breaker where are centrifical compressor is most likely to be used in chemical plants and refineries. which statement most accurately describes characteristics of oil in a refrigeration compressor. it helps remove friction heat from bearings and other wearing surfaces. what happens when oil goes out to the system beyond the compressor. it acts as a contaminant. which of these is the greatest cause of danger when draining oil from ammonia refrigeration systems. oil that collects at a drain point is an active system must be under pressure which statement most accurately describes concerns about draining oil from an ammonia refrigeration it is a dangerous procedure that requires train qualified operators. which statement most accurately describes characteristics of ammonia and