HP QUIZ-14

Remembering: What is the main function of a compressor in a pneumatic system?

• A. To regulate the air pressure
• B. To remove contaminants from the air
• C. To lubricate the system
• D. To increase the air pressure

Remembering: What is the unit used to measure the air flow rate in a compressor?

• A. Cubic meters per second
• B. Liters per minute
• C. Pounds per square inch
• D. Newtons per meter squared

Remembering: Which of the following is NOT a type of compressor?

• A. Centrifugal compressor
• B. Reciprocating compressor
• C. Rotary compressor
• D. Thermodynamic compressor

Understanding: What is the difference between a single-stage and a multi-stage compressor?

• A. Single-stage compressors are louder than multi-stage compressors
• B. Single-stage compressors have a higher maximum pressure than multi-stage compressors
• C. Multi-stage compressors use more energy than single-stage compressors
• D. Multi-stage compressors can achieve higher air pressures than single-stage compressors

Understanding: Why is it important to use a filter in a pneumatic system?

• A. To increase the air flow rate
• B. To reduce the temperature of the air
• C. To remove contaminants from the air
• D. To reduce the noise level of the system

Understanding: What is the purpose of a regulator in a pneumatic system?

• A. To control the flow rate of the air
• B. To reduce the temperature of the air
• C. To remove contaminants from the air
• D. To increase the air pressure

Applying: A pneumatic system requires an air pressure of 8 bar. If the compressor has a maximum pressure of 10 bar, what is the minimum number of stages required in the compressor?

• A. One stage
• B. Two stages
• C. Three stages
• D. Four stages

Applying: A pneumatic system requires an air flow rate of 100 liters per minute. If the compressor has a flow rate of 80 liters per minute, what is the minimum number of compressors required in the system?

• A. One compressor
• B. Two compressors
• C. Three compressors
• D. Four compressors

Analyzing: A pneumatic system is not working properly and the pressure gauge indicates a pressure drop. Which of the following components could be the cause of the problem?

• A. Compressor
• B. Filter
• C. Regulator
• D. Quick exhaust valve