M

Mr. Dubey • 52.30K Points
Coach 

Q. What is the function of Blow down valve of a boiler?

(A) to remove sludge
(B) to build sediments
(C) to remove flue gas
(D) to remove ash
Correct : Option (A)

Explanation: 
 blow down valve is also called as blow-off-cock. the function of this valve

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