Understanding Air Compressors

What type of compressors use pistons for compressing air?

• Axial compressors

• Centrifugal compressors

• Reciprocating compressors

• Rotary compressors

What is the primary function of an air compressor?

• To purify air by removing contaminants

• To convert electrical energy into mechanical energy

• To cool air for air conditioning systems

• To compress air for various industrial uses

How do rotary compressors typically reduce air volume?

• By increasing the air's velocity

• By using a series of filters

• By rotating vanes that decrease chamber size

• By heating the air

What mechanism do rotary compressors use to compress air?

• A reciprocating piston

• Adjustable rotary vanes

• A belt-driven fan

• A series of rotating impellers

During which stroke does the piston in a reciprocating compressor draw air into the cylinder?

• Exhaust stroke

• Compression stroke

• Power stroke

• Suction stroke

What is the typical compression ratio of a single-stage compressor?

• 5 to 1

• 10 to 1

• 3 to 1

• 8 to 1

Why is air cooling necessary between stages in multi-stage compressors?

• To reduce air pressure

• To increase air volume

• To purify the air

• To prevent overheating and potential hazards

At what pressure range can two-stage compressors operate?

• Up to 175 PSI

• Up to 250 PSI

• Up to 300 PSI

• Up to 100 PSI

What is the main advantage of using a multi-stage compressor over a single-stage compressor?

• It operates more quietly

• It is less expensive

• It can achieve higher pressures

• It requires less power

How many stages may be needed to reach a pressure of 2500 PSI?

• Up to 3 stages

• More than 8 stages

• Up to 7 stages

• Up to 5 stages