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Dear candidates you will find MCQ questions of Fluid Mechanics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Q. 21) The ratio of inertial forces to gravity forces is called the __________ number.

(A) Weber
(B) Euler
(C) Froude
(D) Mach
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Q. 22) The ratio of pressure forces to inertial forces is called the __________ number.

(A) Froude
(B) Euler
(C) Reynold
(D) Mach
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Q. 23) For an unstable equilibrium of a floating body (where, M = metacentre.)

(A) M is above G
(B) M is below G
(C) M & G coincide
(D) None of these
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Q. 24) Drag force acting on a body does not depend upon the

(A) Density of the fluid
(B) Density of the body
(C) Velocity of the body
(D) Projected area of the body
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Q. 25) For an in-compressible fluid, the bulk modulus of elasticity is

(A) 5 kg/m3
(B) ∞ N/m2
(C) 1 N
(D) 0 N/m
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Q. 26) Very small pressure difference (< 5 mm water coloumn) can be most conveniently measured by a/an __________ manometer.

(A) U-tube water
(B) U-tube mercury
(C) Inclined tube mercury
(D) Inclined tube water
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Q. 27) A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid.

(A) Incompressible
(B) Ideal
(C) Non-Newtonion
(D) Newtonion
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Q. 28) Curve III in the above diagram represents a/an

(A) Dilatent fluid
(B) Ideal plastic
(C) Pseudo plastic fluid
(D) None of these
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Q. 29) A hydraulic ram acts as a/an __________ pump.

(A) Centrifugal
(B) Reciprocating
(C) Impulse
(D) Parallel cylinder
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Q. 30) The capacity of an accumulator is the maximum

(A) Discharge which it can deliver
(B) Liquid which it can store
(C) Energy which it can store
(D) None of these
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