Mechanical Engineering - Hydraulics and Fluid Mechanics

46. 

The pressure of air __________ with the increase of height from the surface of the earth.

A. does not change
B. decreases
C. increases

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

47. 

The sheet of water flowing over a notch or a weir is known as

A. sill or crest
B. nappe or vein
C. orifice
D. none of these

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

48. 

A body floating in a liquid is said to be not in equilibrium if its metacentre lies below its centre of gravity.

A. Agree
B. Disagree

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

49. 

A flow in which the quantity of liquid flowing per second is not constant, is called

A. streamline flow
B. turbulent flow
C. steady flow
D. unsteady flow

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

50. 

In a sharp-crested weir, the thickness of the weir is kept less than half of the height of water above the crest of the weir.

A. True
B. False

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

« Prev   1 2 3 4 5 6 7 8 9 10