M

Mr. Dubey • 52.30K Points
Coach 

Q. When do we apply by pass governing?

(A) when turbine is overloaded
(B) when unit speed decreases
(C) when unit power increases
(D) when unit pressure decreases
Correct : Option (A)

Explanation: 
 the main purpose of by pass governing is taken into full action when the turbine is overloaded for short durations. this happens occasionally in the working of the turbine. during this, a bypass valve is used.

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