==>>OBJECTIVE TYPE QUESTIONS OF FLUID MECHANICS==>>

1==>> A flow in which each liquid particle has a
definite path and their paths do not cross each
other, is called

(a) Steady flow
(b) Uniform flow.
(c) Streamline flow
(d) Turbulent flow

ANSWER: (c)

2==>> Buoyant force is

(a) Resultant of up thrust and gravity forces acting
on the body
(b) Resultant force on the body due to the fluid
surrounding it
(c) Resultant of static weight of body and
dynamic thrust of fluid’
(d) Equal to the volume of liquid displaced by
the body

 ANSWER: (d)

3==>> Cavitations is caused by
(a) High velocity
(b) Low barometric pressure
(c) High pressure
(d) Low pressure

 ANSWER: (d)

4==>>The general energy equation is applicable to
(a) Steady flow
(b) Unsteady flow
(c) Non-uniform flow
(d) Turbulent flow

 ANSWER: (a)

5==>>The friction resistance in Pipe is proportional
To Square of V , according to
(a) Froudeaiumber
(b) Reynolds-Weber
(c) Darcy-Reynolds
(d) Weber-Froude

 ANSWER: (a)

6==>>Pitot tube is used to measure the velocity head of
(a) Still fluid
(b) Laminar flow
(c) Turbulent flow
(d) Flowing fluid

ANSWER: (d)

7==>>In equilibrium condition, fluids are not able to sustain
(a) Shear force
(b) Resistance to viscosity
(c) Surface tension
(d) Geometric similitude

ANSWER: (c)


8==>>A large Reynold number is indication of
(a) Smooth and streamline flow
(b) Laminar flow
(c) Steady flow
(d) Highly turbulent flow

ANSWER: (d)

9==>> Which instrument used to measure velocity
(a) Orifice-meter
(b) Venturimeter
(c) Mouthpiece
(d) Pitot tube

ANSWER: (d)

10==>> If the density in a fluid flow changes with respect to length of direction of flow , it is called 
(a) steady flow
(b) compressible flow
(c) incompressible flow
(d) unsteady flow

ANSWER: (c)