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Top Hydraulics and Pneumatics Technician Interview Questions

What is compression ratio and how do you compute it?
User-Submitted Answers
Compression ratio is the ratio of discharge pressure to intake pressure. You simply divide intake by discharge pressure to get your ratio.
Pnuematics used in low power applications and not suitable for high sterting loads, slow speed , cheaper air is available.
Swept volume divided by clearance volume.
Hydraulics and Pneumatics - A Technician's and Engineer's Guide (2nd Edition)

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