A refrigeration system contains 30 kg of an A1 refrigerant. Which of the following system locations does NOT require a stop valve, according to CSA B52 code?
a. Suction inlet of each compressor
b. Discharge outlet of each compressor
c. Suction inlet of each condensing unit
d. Discharge outlet of each condensing unit
e. Suction inlet of each liquid receiver
Answer: E
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Power Engineering Chapter 120
- Moisture in a system can result in which of the following?
- Which of the following statements about strainers is false?
- Which of the following statements about refrigeration pressure gauges is true?
- A liquid trap located in the suction line before a refrigeration compressor, which evaporates liquid refrigerant and returns it to the compressor as a gas, is called:
- A chemical dot placed under the lens of a sight glass that is exposed to liquid refrigerant monitors
- The emergency discharge line of a refrigeration system:
- An emergency discharge system is installed on a refrigeration system to prevent serious conditions, such as
- One function of vibration absorbers is to:
- A pressure relief device on a refrigeration system shall have sufficient capacity to prevent the pressure in the pressure vessel from rising more than _____ above the setting of the pressure relief device.
- According to CSA B52 code, refrigerant discharge from a pressure relief device to the atmosphere shall not be less _____ from any window, ventilation opening or exit in any building.
- Which of the following pipe joints are permitted for high pressure 31.75 mm or smaller steel piping?
- A direct expansion type evaporator that has more than one refrigerant circuit requires __________ to provide even refrigerant flow in each circuit.
- The accessory that maintains efficient heat transfer by collecting oil that coats the tubes of the condenser is called: