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Refrigeration RT/RC Prep Quiz
Topics: All categories in the pool
1: 1 HP = ____ Watts?
2: Liquid shall not occupy more than ____ of the volume when the temperature of the refrigerant is 90F.
3: What type refrigerant is NOT ozone depleting?
4: Which of the following is an example of an azeotropic refrigerant?
5: What is Absolute Zero?
6: The formula for Pure Power in a resistance circuit is
7: The 4 basic methods of determining whether the proper amount of refrigerant is being introduced into the system are
- sight glass, weight, pressure, and frost line
- sight glass, weight, pressure, and dipstick
- Buss-eye, weight, pressure, and frost line
- sight glass, weight, paper method, and frost line.
8: How would you know if there was a loss of crankcase pressure?
9: A check valve is a device
10: The main purpose of a refrigerant detector in a machinery room is to
11: What type of voltage causes the winding in a potential relay to open?
12: A motor is rated for 120 volts and has a RLA (rated-load amps) of 5 amps. What is the wattage of the motor?
13: The instrument used to measure the specific gravity of absorption chiller solutions is the
14: The test pressure applied to the high side of each factory-assembled refrigerating system shall be at least equal to the design pressure of
15: A room having machinery but no flame producing apparatus permanently installed and operated is considered a
16: The proper location for an oil separator is between the
17: A premise where large numbers of people congregate and from which occupants can not quickly vacate the space is considered
18: How many volts would you read on a 480V system phase to phase?
19: Ammonia systems use ____ pressure to adjust oil pressure
20: What happens to copper joints when overheated?
21: "R" represents ___ in the Ohm's law formula
22: R-11 has the greatest corrosive effect on
23: 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?
24: A solder joint melts at temperatures of
25: Refrigerant restricted in 2004 but used for transition for decades: