Fluid Mechanics - Section 1 (2)

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Fluid Mechanics - Section 1

There are many problems and MCQs available on Fluid mechanics which
you can solve easily to test your aptitude in fluid mechanic field.

9.

Pressure drag does not depend upon the

A.	roughness of surface of the body.
B.	pressure of main flow only.
C.	length of the body in flow direction.
D.	all (a), (b) and (c)

Answer: Option D

Explanation:

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10.

Pick out the wrong statement.

A.	Momentum transfer in laminar flow results from veclocity gradient.
B.	A fluid in equilibrium is not free from shear stress.
C.	The viscosity of a non-Newtonion fluid is a function of temperature only.
D.	both (b) and (c)

Answer: Option D

Explanation:

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11.

Maximum theoretical suction lift for water at 15°C by a centrifugal pump is 34 ft. The same for water at 90°C will be __________ ft.

A.	40
B.	34
C.	8
D.	37

Answer: Option C

Explanation:

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12.

Which of the following is not concerned with the fluid-particle interaction ?

A.	Drag co-efficient
B.	Froude number
C.	Galileo number
D.	Weber number

Answer: Option D

Explanation:

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13.

For the transfer of solution of thick slurry, the pump used is a __________ pump.

A.	reciprocating
B.	gear
C.	diaphragm
D.	centrifugal

Answer: Option C

Explanation:

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14.

All pipes of a particular nominal size have the same

A.	inside diameter
B.	outside diameter
C.	thickness
D.	none of these

Answer: Option B

Explanation:

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15.

Co-efficient of velocity is __________ the coefficient of discharge.

A.	less than
B.	more than
C.	equal to
D.	not related to

Answer: Option B

Explanation:

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16.

Which of the following is not a dimension-less parameter ?

A.	Euler number
B.	Specific gravity
C.	Fanning friction factor
D.	None of these

Answer: Option D

Explanation:

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