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 irregular and unsteady flow of the fluid is called

Question # 2

When a water droplet falls through air, the net force on it is

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

A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is

Question # 6

The direction of the streamlines is the same as the direction of the

Question # 7

Matter is made up of very tiny particles called

Question # 8

N s m-2is unit of:

Question # 9

The blood pressure of a person

Question # 10

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

Question # 11

Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?

Question # 12

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 # 13

A body is moving through a viscous medium eventually comes to rest because of:

Question # 14

An object moving through a fluid experiences a retarding force called a

Question # 15

The velocity of falling raindrop attains limited value because of

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
2 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
3 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
4 The law of conservation of mass gives us the
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
5 If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be
A. 1 cm
B. 2 cm
C. 8 cm
D. None
6 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
7 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
8 If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term
A. P
B. 1/2 fv2
C. pgh
D. none of them
9 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
10 The internal pressure of the blood is
A. less than the external atmospheric pressure
B. greater than the external atmospheric pressure
C. equal to the external atmosphericpressure
D. none of them

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