Hydraulics and Fluid Mechanics

Question: If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, The body is said to be in __________ equilibrium.
[A].

neutral

[B].

stable

[C].

unstable

Answer: Option A

Explanation:

No answer description available for this question.

Question: If a body floating in a liquid does not return back to its original position, and heels farther “away when given a small angular displacement, the body is said to be in neutral equilibrium.
[A].

Yes

[B].

No

Answer: Option B

Explanation:

No answer description available for this question.

Question: If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
[A].

neutral equilibrium

[B].

stable equilibrium

[C].

unstable equilibrium

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
[A].

3.53 kN

[B].

33.3 kN

[C].

35.3 kN

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: The buoyancy depends upon the
[A].

weight of the liquid displaced

[B].

pressure with which the liquid is displaced

[C].

viscosity of the liquid

[D].

compressibility of the liquid

Answer: Option A

Explanation:

No answer description available for this question.

Question: The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced.
[A].

equal to

[B].

less than

[C].

more than

Answer: Option B

Explanation:

No answer description available for this question.

Question: The body will float if the force of buoyancy is __________ the weight of the liquid displaced.
[A].

equal to

[B].

less than

[C].

more than

Answer: Option C

Explanation:

No answer description available for this question.

Question: In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)
[A].

[B].

[C].

P / 2sinα

[D].

Answer: Option C

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. Which of the following statement is correct?
[A].

The pressure on the wall at the liquid level is minimum.

[B].

The pressure on the bottom of the wall is maximum.

[C].

The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum

[D].

The pressure on the bottom of the wall is zero.

Answer: Option C

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 acts at a distance __________ from the liquid surface.
[A].

H/3

[B].

H/2

[C].

2H/3

[D].

3H/4

Answer: Option C

Explanation:

No answer description available for this question.