Hotel Service Unit 11 Q4 Quiz

Hotel Service Unit 11 Refrigeration Q4

1 / 5

What is another common indication that a refrigeration system has lost refrigerant?

C) Increased humidity in the system

B) High discharge pressure

D) Uniform compressor operation

A) Low suction pressure

2 / 5

Which of the following is a commonly used method to detect the location of a refrigerant leak?

A) Visual inspection of the compressor

B) Applying a soap solution to fittings and observing for bubbles

C) Increasing the system pressure

D) Measuring the temperature of the evaporator

3 / 5

What is the safe method for bringing the refrigerant charge back to its normal working level?

A) Directly venting refrigerant into the atmosphere until it reaches the proper pressure

C) Heating the refrigerant cylinder before charging

B) Recharging the system through the low-pressure side in vapor form to avoid compressor damage

D) Adding refrigerant through the high-pressure side

4 / 5

Which of the following is an indication of a loss in refrigerant charge?

D) Increased compressor temperature without any performance issues

C) Constant low-side pressure

A) Increased cooling efficiency

B) Reduced cooling capacity and higher evaporator temperature

5 / 5

Which device is used to detect refrigerant leaks that are too small to be visible?

C) Electronic leak detector

B) Pressure gauge

A) Temperature gauge

D) Sound meter

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