Hydraulics and Fluid Mechanics

Question: A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is
[A].

2.89 kN

[B].

8.29 kN

[C].

9.28 kN

[D].

28.9 kN

Answer: Option B

Explanation:

No answer description available for this question.

Question: A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
[A].

wH

[B].

wH/2

[C].

wH2/2

[D].

wH2/3

Answer: Option C

Explanation:

No answer description available for this question.

Question: A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.

Question: A differential manometer is used to measure
[A].

atmospheric pressure

[B].

pressure in pipes and channels

[C].

pressure in venturimeter

[D].

difference of pressures between two points in a pipe

Answer: Option D

Explanation:

No answer description available for this question.

Question: A manometer can be used to measure vacuum pressures.
[A].

Agree

[B].

disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: A manometer is used to measure
[A].

atmospneric pressure

[B].

pressure in pipes and channels

[C].

pressure in venturimeter

[D].

difference of pressures between two points in a pipe

Answer: Option B

Explanation:

No answer description available for this question.

Question: A piezometer tube is used only for measuring
[A].

low pressure

[B].

high pressure

[C].

moderate pressure

[D].

vacuum pressure

Answer: Option C

Explanation:

No answer description available for this question.

Question: Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.
[A].

plus

[B].

minus

Answer: Option B

Explanation:

No answer description available for this question.

Question: The atmospheric pressure at sea level is
[A].

103 kN/m2

[B].

10.3 m of water

[C].

760 mm of mercury

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: According to Pascal’s law, the intensity of pressure at any point in a fluid at rest is the same in all directions.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.