Fluid Mechanics & Hydraulics (3140611) MCQs

MCQs of Dimensional Analysis and Similitude

Showing 11 to 20 out of 28 Questions
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11.
If v stands for velocity of sound, E is elasticity and d the density, then find x in the equation v=(d/E)x. solve using Rayleigh's method.
(a) 1
(b) 1/2
(c) 2
(d) -1/2
Answer:

Option (d)

12.
Similitude is a concept applicable to the testing of _________
(a) Mathematical models
(b) Physical models
(c) Engineering models
(d) Chemical models
Answer:

Option (c)

13.
Which among the following is not a criteria to achieve similitude?
(a) Geometric similarity
(b) Kinematic similarity
(c) Dynamic similarity
(d) Conditional similarity
Answer:

Option (d)

14.
A model of with same shape is__________
(a) Geometric similarity
(b) Kinematic similarity
(c) Dynamic similarity
(d) Conditional similarity
Answer:

Option (a)

15.
Which among the following have similar fluid streamlines?
(a) Geometric similarity
(b) Kinematic similarity
(c) Dynamic similarity
(d) Conditional similarity
Answer:

Option (b)

16.
Which among the following have the same forces acting on them?
(a) Geometric similarity
(b) Kinematic similarity
(c) Dynamic similarity
(d) Conditional similarity
Answer:

Option (c)

17.
All the parameters in a similitude are described using_________
(a) Continuum mechanics
(b) Solid mechanics
(c) Diesel mechanics
(d) Aircraft mechanics
Answer:

Option (a)

18.
If E = energy, G = gravitational constant, I = impulse and M = mass, then the dimensions of GIM2E2 are same as that of
(a) Mass
(b) Length
(c) Time
(d) Force
Answer:

Option (c)

19.
If the units of mass, length, and time are doubled, unit of angular momentum will be
(a) Doubled
(b) Tripled
(c) Quadrupled
(d) Same
Answer:

Option (c)

20.
The dimensions of surface tension is
(a) [MLT-2]
(b) [MT-2]
(c) [ML2T-2]
(d) [MLT-1]
Answer:

Option (b)

Showing 11 to 20 out of 28 Questions
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