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Pressure relief valves may help in ___________

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+1 vote
in Irrigation Engineering by (75.2k points)
Pressure relief valves may help in ___________

(a) releasing the hydrostatic pressure

(b) holding the hydrostatic pressure

(c) increasing the hydrostatic pressure

(d) may increase or decrease the hydrostatic pressure

I have been asked this question in final exam.

The query is from Canal Lining in division Lining of Irrigation Canals and its Economics of Irrigation Engineering

1 Answer

0 votes
by (106k points)
Correct option is (a) releasing the hydrostatic pressure

To explain: Pressure relief valve is a flap valve opening upwards into the canal. It helps in releasing the hydrostatic pressure as soon as the differential head exceeds the safe pressure. These valves open out as soon as the differential pressure goes beyond 10 cm.

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