Hydraulics and fluid mechanics MCQ with Answers

Hydraulics and fluid mechanics MCQ with Answers

286) The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

Answer is:

0.95 times

287) When the Mach number is more than 6, the flow is called

Answer is:

hyper-sonic flow

288) The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Answer is:

double

289) The separation of flow occurs when the hydrodynamic boundary layer thickness is reduced to zero.

Answer is:

Agree

290) If the depth of water in an open channel is less than the critical depth, the flow is called

Answer is:

torrential flow

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