Q.

Penstock in a hydroelectric power plant is

A. a pipe connected to runner outlet
B. nozzle that release high pressure water on turbine blades
C. a conduit connecting forebay to scroll case of turbine
D. a pipe connecting surge tank to dam
Answer» C. a conduit connecting forebay to scroll case of turbine
Explanation: penstocks are the conduit built of steel or reinforced concrete. penstock
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