Fluid Mechanics and Hydraulic Machines (3141906) MCQs

MCQs of Motion of Fluid Particles and Streams

Showing 11 to 20 out of 42 Questions
1 2 3 4 5
11.
An ideal flow of any fluid must fulfil the following:
(a) Bernoulli's equation
(b) Newton's law of viscosity
(c) Pascal' law
(d) Continuity equation
Answer:

Option (d)

12.
When the flow parameters at any given instant remain same at every point, then the flow is said to be
(a) steady
(b) laminar
(c) uniform
(d) incompressible
Answer:

Option (c)

13.
streamline, streakline and pathline are identical when
(a) the flow is uniform
(b) the flow is steady
(c) the flow is neither steady nor uniform
(d) the flow velocities do not change steadily with time
Answer:

Option (b)

14.
In the case of a steady flow of a fluid, the acceleration of any fluid particle is
(a) constant
(b) variable
(c) zero
(d) never zero
Answer:

Option (c)

15.
During the opening of a valve in a pipeline, the flow is
(a) steady
(b) unsteady
(c) uniform
(d) laminar
Answer:

Option (b)

16.
Uniform flow occurs when
(a) the flow is streamline
(b) size and shape of the cross-section in a particular length remain constant
(c) size and cross-section changes uniformly along the length
(d) flow occurs at a constant rate
Answer:

Option (b)

17.
The flow of liquid through a tapering pipe at a constant rate is
(a) steady and uniform
(b) unsteady and non-uniform
(c) unsteady and uniform
(d) steady and non-uniform
Answer:

Option (d)

18.
The flow in which each liquid particle has a definite path and their paths do not cross each other is called
(a) 1-D flow
(b) steady flow
(c) streamline flow
(d) uniform flow
Answer:

Option (c)

19.
The flow in which conditions do not change with time at any point is known as
(a) 1-D flow
(b) steady flow
(c) streamline flow
(d) uniform flow
Answer:

Option (b)

20.
In a forced vortex, the velocity of flow everywhere within the fluid is
(a) maximum
(b) minimum
(c) zero
(d) non-zero and finite
Answer:

Option (d)

Showing 11 to 20 out of 42 Questions
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