Reverse flow in pilot operated check valve - Hydraulics & Pneumatics

Q.  How is reverse flow possible in pilot operated check valve?
- Published on 14 Aug 15

a. spring force lifts the ball due to which reverse flow is possible
b. fluid pressure lifts the ball due to which reverse flow is possible
c. both a. and b.
d. none of the above

ANSWER: fluid pressure lifts the ball due to which reverse flow is possible

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