Page 121 - Pneumatic ebook (2)_draft 13 sept 2021

13. B - shuttle valve.
14. C– 3.
15. C – pedal.
16. D – idle return roller.
17. C – control flow of air in both directions.
18. A – 5.
19. A – allow flow of air to the outlet when there is pressure at both
inlets.
20. C – controls air flow in both direction which is through the air
throttle.
Chapter 1: Introduction to Pneumatic System –

Actuators. Answer.

1. Linear, rotary
2. Single acting cylinder.
3. Single acting cylinder
A – pressure port.
B – vent.
C – rod.
D – piston seal.
E – spring.
4. C – thrust available on the retracting stroke is reduce due to smaller effective
piston area, but is only a consideration if the cylinder is to ‘pull’ the same load in
both directions.
5. Air cushions, rubber buffer.

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