Aux 1 Unit 6 Q10

1 / 7

What is the function of the fusible plug in a main air receiver?

D) To filter the air before it enters the receiver

B) To provide a secondary means of pressure relief in the event of a fire by melting and releasing air

A) To regulate the air temperature

C) To maintain the structural integrity of the receiver

2 / 7

Why is a drain valve an important safety feature on a main air receiver?

D) To filter impurities from the air entering the receiver

A) To allow for the removal of air during maintenance

B) To drain accumulated condensate (water) from the bottom of the receiver, preventing corrosion and maintaining air quality

C) To control the flow of air into the receiver

3 / 7

At what pressure should the relief valve on a main air receiver typically lift?

C) At half the maximum working pressure of the receiver

A) At the normal operating pressure of the receiver

D) At a fixed pressure regardless of the receiver’s design

B) At 110% of the maximum working pressure of the receiver

4 / 7

Which of the following is a safety feature commonly found on a main air receiver?

B) Pressure relief valve

C) Temperature gauge

A) Sight glass

D) Water pump

5 / 7

What is the purpose of a pressure gauge on a main air receiver?

C) To measure the volume of air in the receiver

D) To regulate the air flow out of the receiver

B) To indicate the pressure inside the receiver to ensure it remains within safe operating limits

A) To monitor the temperature inside the receiver

6 / 7

Which of the following is a safety feature commonly found on a main air receiver?

C) Temperature gauge

B) Pressure relief valve

A) Sight glass

D) Water pump

7 / 7

Why is the relief valve set to lift at 110% of the maximum working pressure?

A) To allow the receiver to operate at higher pressures safely

C) To minimize energy consumption

D) To increase the lifespan of the relief valve

B) To prevent the receiver from being damaged or exploding due to overpressure

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