Refrigeration Systems Quiz

Why are old refrigeration units often not repaired?

• Repairs are too cheap.

• They are always beyond repair.

• Repairs are not economically viable.

• They are made of biodegradable materials.

What is the purpose of the reversible positive displacement oil pump in the compressor?

• To increase pressure

• To circulate oil

• To cool the system

• To reduce noise

What is the role of the discharge valve relief spring assembly in the compressor?

• To compress the refrigerant

• To release excess pressure

• To lubricate the system

• To connect the pistons

Which component is directly involved in the movement of the pistons?

• Crankshaft seal assembly

• Discharge valve relief spring assembly

• Connecting rod

• Reversible positive displacement oil pump

What is the typical temperature of chilled water leaving the evaporator in a reciprocating chiller?

• 15°C

• 10°C

• 7°C

• 5°C

In a chilled water system, what is the purpose of the water chiller?

• To heat the water

• To chill the water

• To store the water

• To filter the water

What is the primary function of the chilled water circuit in the system?

• To heat the water

• To circulate chilled water

• To store the water

• To filter the water

What allows an air conditioning system to have winter and summer modes?

• Reversible vapour compression and a runaround coil

• Constant air volume systems

• Induction systems

• Central plant systems