Aux 1 Unit 6 Q9

1 / 8

What is the purpose of a safety valve fitted on an air receiver?

A) To regulate the temperature inside the receiver

C) To measure the amount of air stored in the receiver

D) To control the flow rate of air into the receiver

B) To release excess pressure automatically if it exceeds safe limits

2 / 8

Which of the following is a standard fitting found on an air receiver?

A) Fuel injector

C) Water pump

B) Pressure gauge

D) Thermocouple

3 / 8

How does a pressure relief valve on an air receiver operate?

D) It filters out contaminants from the air

C) It manually releases air when the operator pulls a lever

A) It opens automatically to release excess pressure if the pressure inside the receiver exceeds the set safety limit

B) It opens and closes based on the temperature inside the receiver

4 / 8

What triggers the operation of a fusible plug on an air receiver?

D) Operator intervention

B) Excessive internal temperature that melts the plug, releasing pressure

C) Low pressure in the air receiver

A) High-pressure conditions

5 / 8

How does a fusible plug enhance the safety of an air receiver?

D) It regulates the flow of air into the receiver

B) It melts at a specific temperature, releasing air to prevent overheating and overpressure

A) It adjusts the pressure inside the receiver automatically

C) It filters impurities from the compressed air

6 / 8

Which fitting on an air receiver indicates the amount of pressure inside the receiver at any given time?

A) Pressure gauge

B) Relief valve

D) Temperature gauge

C) Drain valve

7 / 8

Which safety device is responsible for preventing overpressure in an air receiver by automatically venting air when pressure exceeds a preset limit?

D) Non-return valve

C) Drain valve

B) Pressure relief valve

A) Fusible plug

8 / 8

Which fitting on an air receiver is used to remove accumulated water (condensate) from the bottom of the receiver?

B) Drain valve

C) Relief valve

D) Air filter

A) Sight glass

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