Oil Hydraulics and Pneumatics (2171912) MCQs
MCQs of Introduction to Pneumatic Systems
| 11. |
Which factor is/are considered while selecting pneumatic pipes?
|
||||||||
|
Answer:
Option (d) |
| 12. |
For the economic reasons, total drop of pressure in pneumatic system is kept limited
|
||||||||
|
Answer:
Option (a) |
| 13. |
Which types of contamination are present in a compressed air system?
|
||||||||
|
Answer:
Option (d) |
| 14. |
The rotary compressor can be classified as
|
||||||||
|
Answer:
Option (c) |
| 15. |
In the steady-flow compressor, compression occurs by
|
||||||||
|
Answer:
Option (a) |
| 16. |
In a displacement compressor, compression occurs by
|
||||||||
|
Answer:
Option (c) |
| 17. |
The rotary positive displacement machines are _______ and compression is _______.
|
||||||||
|
Answer:
Option (d) |
| 18. |
The Roots blower and vane-type compressor are the types of
|
||||||||
|
Answer:
Option (a) |
| 19. |
For a Root blower, as the pressure ratio increases, efficiency ____
|
||||||||
|
Answer:
Option (b) |
| 20. |
The vane-type compressor requires ____ the Roots blower.
|
||||||||
|
Answer:
Option (c) |
