Air Compressors MCQ’s

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This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Air Compressors”.

1. Which among the following are the applications of air compressors?
a) Supercharging of IC engines
b) Agriculture
c) Railways
d) Aerospace

2. The capacity of the compressor is specified by free air delivery.
a) True
b) False

3. What is the function of the air compressor?
a) Decreases the pressure of air
b) Increases the pressure of air
c) Removes dust particles
d) Adds lubricating oil

4. Which among the following are not the accurate selection criteria for air compressors?
a) Free air delivery
b) Air receiver capacity
c) Power supply
d) Speed

5. The compressed air is very costly.
a) True
b) False

6. What is the use of Intake air filters?
a) To reduce the temperature of the air
b) Used as storage and smoothened
c) To prevent dust from entering the compressor
d) To remove the traces of moisture

7. What is the normal pressure at which the compressed air is stored?
a) 30 bar
b) 40 bar
c) 10 bar
d) 100 bar

8. Which among the following leads to conserving of energy?
a) Conserving compressed air
b) Wasting the compressed air
c) Using compressed air for Cleaning and Washing
d) Allowing leakages of compressed air

9. What is the function of Interstage coolers?
a) To reduce the temperature of the air
b) Used as storage and smoothened
c) To prevent dust from entering the compressor
d) To remove the traces of moisture

10. The removal of moisture from the compressed air is done using ____
a) receivers
b) moisture drain traps
c) air dryers
d) interstage coolers

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