ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

The flow of an ideal fluid is

Question # 2

The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is

Question # 3

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 4

At high altitude the blood oozes out of the nose and ear because

Question # 5

Machine parts are jammed due to:

Question # 6

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 7

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 8

When each particle of the fluid moves along a smoth path, this path is known as

Question # 9

A device used to measure the speed of liquid flow is known as

Question # 10

Under normal circumstances, the volume of blood is sufficient to keep the vessels

Question # 11

Blood has a density

Question # 12

The unit of viscosity is SI system is:

Question # 13

Ball pen functions on the principle of

Question # 14

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 15

The blood pressure of a person

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
2 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid
A. speed
B. height
C. none of them
D. both of them
3 The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the
A. orifices
B. efflux
C. fluid
D. none of them
4 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
5 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
6 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
7 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
8 Stock's law holds for:
A. Motion through free space
B. Motion through viscous medium
C. Bodies of all shapes
D. None of these
9 In a normal healthy person the value of systolic pressure is
A. 75 torr
B. 80 torr
C. 120 torr
D. all of them
10 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less

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