Hydraulics and fluid mechanics MCQ with Answers

Hydraulics and fluid mechanics MCQ with Answers

316) The coefficient of discharge for an external mouthpiece depends upon

Answer is:

length of mouthpiece

317) The highest efficiency is obtained with a channel of __________ section.

Answer is:

trapezoidal

318) A vessel of 4 m³ contains an oil which weighs 30 kN. The specific weight of the oil is

Answer is:

7.5 kN/m³

319) Coefficient of discharge Cd is equal to (where C_c = Coefficient of contraction, C_v = Coefficient of velocity, and C_r = Coefficient of resistance)

Answer is:

C_c x C_v

320) In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

Answer is:

running free

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