Which of the following components is not a part of hydro-electric plant ?

Which of the following components is not a part of hydro-electric plant ? (a) Penstock (b) Spillway (c) Surge tank (d) Economiser 
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3 Answers

Answer :

Economiser is not a parpart of power plant hydroelectric 
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Answer :

D. Economiser is part of thermal plant
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Answer :

Economiser
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