Hydraulics - Section 1 (6)

Directions to Solve

Hydraulics - Section 1

In this section, you will get important MCQs of Hydraulics and you can solve them
to check the aptitude ability. We provide all the important MCQs to the students.

41.

A syphon is used

A.	to connect water reservoirs at different levels intervened by a hill
B.	to supply water to a town from higher level to lower level
C.	to fill up a tank with water at higher level from a lower level
D.	none of these.

Answer: Option A

Explanation:

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

42.

The time required to close a valve gradually is (where L is the length of pipe and C = velocity of pressure wave)

A.
B.	≤
C.	>
D.	<

Answer: Option C

Explanation:

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

43.

Bernoulli's equation assumes that

A.	fluid is non-viscous
B.	fluid is homogeneous
C.	flow is steady
D.	flow is along the stream line
E.	all the above.

Answer: Option E

Explanation:

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44.

If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its

A.	specific weight
B.	specific mass
C.	specific gravity
D.	none of these.

Answer: Option C

Explanation:

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45.

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if

A.	area is horizontal
B.	area is vertical
C.	area is inclined
D.	all the above.

Answer: Option D

Explanation:

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46.

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm2, the pressure at a depth of 2.5 m, is

A.	1 metre of water
B.	2 metres of water
C.	3 metres of water
D.	3.5 metres of water
E.	4.0 metres of water.

Answer: Option C

Explanation:

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47.

The maximum vacuum created at the summit of a syphon is

A.	2.7 m of water
B.	7.4 m of water
C.	5.5 m of water
D.	none.

Answer: Option B

Explanation:

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48.

The property of steam function ψ is :

A.	ψ is constant everwhere on any stream line
B.	the flow around any path in the fluid is zero for continuous flow
C.	the rate of change of ψ with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction
D.	the velocity vector may be found by differentiating the stream function
E.	all the above.

Answer: Option E

Explanation:

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Hydraulics - Section 1 (6)

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