Fluid Mechanics & Hydraulics (3140611) MCQs

MCQs of Fluid Statics

Showing 21 to 30 out of 32 Questions
1 2 3 4
21.
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
(d) none of the above
Answer:

Option (a)

22.
A body floating in a liquid is said to be in neutral equilibrium if its metacentre
(a) coincides with its centre of gravity
(b) lies above its centre of gravity
(c) lies below its centre of gravity
(d) lies between the centre of buoyancy and centre of gravity
Answer:

Option (a)

23.
In case of spherical bodies with uniform mass distribution, what is the position of center of pressure relative to centre of gravity?
(a) Above
(b) Below
(c) Coincides
(d) None of the mentioned
Answer:

Option (c)

24.
The intensity of pressure at any point, in a liquid, is
(a) directly proportional to the area of the vessel containing liquid
(b) directly proportional to the depth of liquid from the surface
(c) directly proportional to the length of the vessel containing liquid
(d) inversely proportional to the depth of liquid from the surface
Answer:

Option (b)

25.
The pressure measured with reference to atmospheric pressure is called
(a) atmospheric pressure
(b) absolute pressure
(c) gauge pressure
(d) mean pressure
Answer:

Option (c)

26.
The absolute pressure is equal to
(a) gauge pressure + atmospheric pressure
(b) gauge pressure - atmospheric pressure
(c) atmospheric pressure - gauge pressure
(d) gauge pressure - vacuum pressure
Answer:

Option (a)

27.
A piezometer tube is used only for measuring
(a) low pressure
(b) high pressure
(c) moderate pressure
(d) vacuum pressure
Answer:

Option (c)

28.
A differential manometer is used to measure
(a) atmospheric pressure
(b) pressure in channels
(c) pressure in venturimeter
(d) difference of pressures between two points in a pipe
Answer:

Option (d)

29.
The liquid used in manometers should have
(a) low surface tension
(b) low density
(c) high viscosity
(d) high surface tension
Answer:

Option (a)

30.
The pressure at a point 4 m below the free surface of water is
(a) 19.24 kPa
(b) 29.24 kPa
(c) 39.24 kPa
(d) 49.24 kPa
Answer:

Option (c)

Showing 21 to 30 out of 32 Questions
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