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Refrigeration RT/RC Prep Quiz
Topics: All categories in the pool
1: What kind of material can't be used on the outlet of a relief valve?
2: If a condenser is on a roof and the temperature is 35F and dropping the capacity
3: What device removes the start winding from the circuit of a split-phase motor once the motor reaches 75% of its rated load amps (RLA)?
4: At higher altitudes, boiling temperatures
5: The test pressure applied to the high side of each factory-assembled refrigerating system shall be at least equal to the design pressure of
6: A movie theater would be considered a
7: A moisture indicator must
8: How many flammability classifications are refrigerants in?
9: When liquid receivers are used, the liquid refrigerant shall not exceed _______percent of the volume at 90F.
10: What should never be used in pressure testing refrigeration systems?
11: The principle used in continuous type absorption systems is
12: What refrigerant were phased out in 2004?
13: R-123 belongs to Group
14: Which of the following most closely represents the concentration of Li-Br in a absorption system?
15: What is the temperature that a liquid and a vapor can exist in equilibrium called?
16: Which creates more of a heat load?
17: Two capacitors are wired in parallel. One capacitor has a value of 15uf. The other has a value of 25uf. What is the total value supplied?
18: A room having machinery but no flame producing apparatus permanently installed and operated is considered a
19: On a ammonia compressor, the pressure of a forced fed oil pump is changed by varying the
20: What would be the classification for Stop & Shop grocery store?
21: On a day with low relative humidity, the two thermometers on a sling psychrometer will read
22: A declaration test is needed when the system contains more than
23: R-410A can segregate in the system or chemically change its composition due to a leak.
24: The 4 basic methods of determining whether the proper amount of refrigerant is being introduced into the system are
- Buss-eye, weight, pressure, and frost line
- sight glass, weight, pressure, and frost line
- sight glass, weight, pressure, and dipstick
- sight glass, weight, paper method, and frost line.
25: Direct systems using Group II refrigerants