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Free Solved objective Questions on Fluid Mechanics

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Free Solved objective Questions on Fluid Mechanics

1. A fluid is a substance that
(a) Always expands until it fills any container
(b) Has the same shear stress at a point
regardless of its motion
(c) Cannot remain at rest under action of any
shear force
(d) Cannot be subjected to shear forces
ANSWER: (b)

2. Length of mercury column at a place at an
altitude will vary with respect to that at ground
in a
(a) Linear relation
(b) hyperbolic relation
(c) Parabolic relation.
(d) Manner first slowly and then steeply
ANSWER: (d)

3. When power is transmitted through a considerable distance by means of water under
pressure, the maximum power is transmitted when frictional loss of head is
(a) One third of the total head supplied
(b) Half of the total head supplied
(c) 10% of the total head
(d) 17.7% 0f the total head.
ANSWER: (a)

4. A rotameter is a device used to measure
(a) Velocity of fluid in pipes
(b) Velocity of gauges
(c) Votex flow
(d) Flow of fluids
ANSWER: (d)

5. The continuity equation
(a) Expresses relationship between hydraulic
parameters of flow
(b) Expresses the relationship, between work and
energy
(c) Is based on Bernoulli’s theorem
(d) Relates the mass rate of flow along a stream
line.
ANSWER: (d)

6. Of the following, dimensionless parameter is
(a) Pressure coefficient
(b) Froude number
(c) Darcy Weisbach friction factor
(d) All of the above
ANSWER: (d)

7. One dimensional flow
(a) Restricted to flow in a straight line
(b) Neglects changes in a transverse direction
(c) Steady uniform flow
(d) A uniform flow
ANSWER: (b)

8. Steady flow occurs when
(a) Pressure does not change along the flow
(b) Velocity does not change
(c) Conditions change gradually with time
(d) Conditions do not change with time at any point.
ANSWER: (d)

9. Equation Continuity of fluids is applicable only when the flow is
(a) Steady
(b) One dimensional
(c) Compressive
(d) All of the above
ANSWER: (d)

10. If the particles of a fluid attain such velocities that vary from point to point in magnitude and
direction as well as from instant, the flow is
(a) Uniform flow
(b) Steady flow
(c) Turbulent flow
(d) Laminer flow
ANSWER: (c)

11. In a turbulent flow in a pipe
(a) Reynolds number is greater than 10000
(b) Fluid particles move in straight lines
(c) Head loss varies linearly with flow rate
(d) Shear stress varies linearly with radius
ANSWER: (d)

12. In laminar flow, maximum velocity at the centre
Of pipe is how many times to the average velocity
(a) Two
(b) Three
(c) Four
(d) None of the above
ANSWER: (a)

13. A sharp edged obstruction over which the flow
of a fluid takes place is
(a) Wear
(b) Notch
(c) Orifice
(d) None of these
ANSWER: (c)

14. The non-dimensional factor governing frictional resistance is
(a) Reynolds number
(b) Weber number
(c) Froude number
(d) Mach number
ANSWER: (d)

15. Non uniform flow occurs when
(a) Direction and magnitude of velocity at all
points are identical
(b) Velocity of successive fluid particles, at any
point, is same at successive periods of time
(c) Magnitude and direction of velocity do not
change from point to point in the fluid
(d) Velocity, depth, pressure, etc. changes point
to point in the fluid flow
ANSWER: (d)

16. For measuring flow by a venturimeter, it should
be installed in
(a) Vertical line
(b) Horizontal line
(c) Inclined line with upward flow
(d) In any direction and in any location
ANSWER: (d)

17. The fluid forces considered in the Navier Stokes
equation are
(a) Gravity, pressure and viscous
(b) Gravity, pressure and turbulent
(c) Pressure, viscous and turbulent
(d) Gravity, viscous and turbulent
ANSWER: (a)

18. Reynolds number is significant in
(a) Supersonics, as with projectile and jet propulsion
(b) Full immersion or completely enclosed flow,as with pipes, aircraft wings, nozzles etc.
(c) Simultaneous motion through two fluids where there is a surface of discontinuity,
gravity forces, and wave making effect, as with ship’s hulls
(d) All of the above
ANSWER: (b)

Q.51. A streamline is defined as the line
(a) Parallel to central axis flow
(b) Parallel to outer surface to pipe g
(c) Of equal velocity in a flow
(d) Along which the pressure drop is uniform
ANSWER: (c)

19. The cepoletti weir functions as if it were a
following notch without end contractions
(a) Triangular notch
(b) Trapezoidal notch
(c) Rectangular notch
(d) Parallelogram notch
ANSWER: (c)

20.Match number is significant in
(a) Supersonics, as with projectiles and jet
propulsion
(b) Full immersion or completely enclosed flow,
as with pipes, aircrafts wings, nozzles etc.
(c) Simultaneous motion through two fluids
where there is a surface of discontinuity
gravity force, and wave making effects, as
with ship’s hull
(d) All of the above
ANSWER: (a)

Kerala Gk MCQ Objective test

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Kerala  Gk MCQ  Objective test

An Objective test containing 10 questions on Kerala GK.

This test contains 5 questions on tourism and 5 questions on economy.

it will be useful for tests by kerala public service commission and other state level job exams in kerala.

Catch the test at http://parikshaa.blogspot.in/2015/04/kerala-quiz-solved-questions-with.html

Since we are posting new tests on parikshaa only ,you are requested to visit that site for new material.

 

 

GK test on Sh Narendra Modi in MCQ Format

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GK test on Sh Narendra Modi in MCQ Format
Sh narendra modi is prime minister of India.
This is small GK test containing 10 Questions on Sh Modi.
Test Yourself using these objective questions.
Very useful as question on PM modi may appear in any exam.
And it will help you to know him better

Take the Quiz on Parikshaa

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Practice Paper For LIC exams :English

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Practice Paper For LIC exams :English English Language Practice Paper LIC AAO LIC AAO Practice Set PRACTICE SET Directions : In each of the following questions, out of the given alternatives, choose the one which is the nearest in meaning to the given word.

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English Grammar objective Online test

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English Grammar objective Online test English Language and Grammar Free Objective Online Exam Free English grammar exercises and test online

Direction: In each of the following questions, out of the given alternatives, choose the one which is nearest in meaning to the italicized word in the sentence.

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Computer Science GK Test Computer GK Test MCQ IN COMPUTER SCIENCE Basic Computer Quiz Questions with Answers 1. In normal view, how can you quickly change to handout master view in MS Power Point? (a) Click the outline tab and select handout master view (b) Press the shift key and click the handout master [...]

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Jammu and Kashmir J&K GK test jammu and kashmir General Knowledge objective questions Multiple Choice Questions for j&K Exams 1. When Jammu and Kashmir was Established ? (a) 1947-10-25 (b) 1947-10-26 (c) 1947-10-27 (d) 1947-10-28

2. …Districts are there in J & K State. (a) 20 (b) 21 (c) 22 (d) 23

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Indian History free Objective test

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Indian History free Objective test Free Indian History Online Practice Tests Indian History – General Knowledge Questions and Answers 1. The battle of Mahabharata is believed to have been fought at

Kurukshetra for?

(A)       14 days

(B)       16 days

(C)       l8 days

(D)       20 days

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Rajasthan Gk test Rajasthan GK Question G.K. Objective Test on Rajasthan 1. Rajasthan is bordered by Pakistan to the …..

(a) East (b) West (c) North (d) South

2. Rajasthan is bordered by Gujarat to the …..

(a) southeast (b) northeast (c) southwest (d) northeast

3. Rajasthan is bordered by Madhya Pradesh to the [...]

Maths Sample Paper for All Entrance Examination

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Maths Sample Paper for All Entrance Examination

Solved Maths Model Test Paper

Directions (Q. 1—4): Study the following table carefully and answer the questions given below:

Average marks obtained by 20 Boys and 20 Girls in Five Subjects from five different schools.

 

1. The boys and girls of which of the following [...]