Aux 2 Unit 11 Quiz 5

Aux 2 Unit 11 Q5

1 / 8

What is the typical sequence of air flow in a three-stage air compressor system?

A) Compression, expansion, cooling

C) Filtering, expansion, discharge

D) Cooling, heating, compression

B) Intake, first-stage compression, intercooling, second-stage compression, intercooling, third-stage compression, discharge

2 / 8

In a three-stage air compressor system, what happens to the air during the third stage?

C) The air is filtered and released without further compression

D) The air is cooled for use at lower pressure

B) The air is expanded to reduce pressure

A) The air is compressed to its final high pressure and discharged

3 / 8

Why are multi-stage compressors preferred over single-stage compressors for high-pressure applications like SCUBA diving?

D) They use less power

C) They are easier to maintain

B) They allow for gradual pressure increases, improving efficiency and safety

A) They are more compact

4 / 8

What is a key function of the intercooler in a three-stage air compressor system?

A) To heat the air between stages

C) To filter out oil particles

D) To regulate the air pressure

B) To cool the air between compression stages to reduce the load on the next stage

5 / 8

What is the primary purpose of using a three-stage air compressor system for SCUBA diving equipment?

A) To reduce the temperature of the air

C) To decrease the air pressure for underwater use

B) To ensure the air is compressed to a safe, high pressure suitable for SCUBA tanks

D) To eliminate all moisture from the air

6 / 8

What safety feature is typically included in a three-stage compressor to prevent over-pressurization?

A) Temperature sensor

D) Noise suppressor

C) Water cooling system

B) Pressure relief valve

7 / 8

What is the role of the final filter in a three-stage air compressor system for SCUBA?

C) To remove remaining oil and particulates before the air is used or stored

B) To add moisture to the air for comfort

D) To lower the temperature of the air significantly

A) To increase the pressure of the air

8 / 8

Why is it important for the three-stage compressor system to include moisture separators?

A) To increase the pressure of the compressed air

B) To prevent water vapor from causing corrosion or freezing in the air supply system

D) To boost the efficiency of the compressor

C) To add moisture for enhanced breathing comfort

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