279) When the flow in an open channel is gradually varied, the flow is said to be

steady uniform flow

steady non-uniform flow

unsteady uniform flow

unsteady non-uniform flow

Answer is:

steady non-uniform flow

Hydraulics and fluid mechanics MCQ with Answers

For more MCQ's Click Here

Related Hydraulics and fluid mechanics MCQ with Answers

280) When the Mach number is equal to unity, the flow is called sonic flow.

Right

Wrong

Answer is:

Right

281) The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel.

Correct

Incorrect

Answer is:

Correct

282) A weir, generally, used as a spillway of a dam is

narrow crested weir

broad crested weir

Ogee weir

submerged weir

Answer is:

Ogee weir

Explanation:

Generally, ogee weirs are provided for the spillway of a storage dam. The crest of the ogee weir slightly rises and falls into parabolic form. Flow over ogee weir is similar to flow over rectangular weir, cippoletti weir.

283) A thick liquid like a syrup has a __________ viscosity than a light liquid like water.

lesser

greater

zero

none of these

Answer is:

greater

Hydraulics and fluid mechanics MCQ with Answers

For more MCQ's Click Here