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Mr. Dubey • 52.30K Points
Coach 

Q. Which among the following is the standard symbol for Darcy friction factor?

(A) f
(B) fd
(C) c
(D) cd
Correct : Option (B)

Explanation: 
 the standard symbol for darcy friction factor is fd. darcy friction factor in fluid mechanics deals with fractions of pressure losses. this is due to the development of friction in the pipe.

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