ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

The body passing a viscous medium affected by:

Question # 2

Blood pressure is measured by the instrument

Question # 3

Internal friction of fluid is called

Question # 4

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 5

The dimensions of viscosity are:

Question # 6

N s m-2is unit of:

Question # 7

According to Stoke's law, drag force depends on

Question # 8

One torr is equal to

Question # 9

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

Question # 10

Stock's law holds for:

Question # 11

When the speed of a body in a fluid increases then the drag force

Question # 12

When a fluid is in motion, its flow can be considered as

Question # 13

0.10 cm can be written as:

Question # 14

Ball pen functions on the principle of

Question # 15

Pressure exerted by a gas on the walls of its container in due to

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ECAT Class Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity
2 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
3 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
4 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
5 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
6 In a normal healthy person the value of diastolic pressure is
A. 75 - 80 torr
B. 100 torr
C. 120 torr
D. none of them
7 The property of fluids due to which they resist their own flow is called:
A. Drag force
B. Surface tension
C. Viscosity
D. None of these
8 The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
9 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
10 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them

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