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

One torr is equal to

Question # 2

Surface tension of water is reduced by adding

Question # 3

The velocity of falling raindrop attains limited value because of

Question # 4

The body passing a viscous medium affected by:

Question # 5

In a normal healthy person the value of diastolic pressure is

Question # 6

The study of fluid in motion basically involves law of conservation of:

Question # 7

Substances that do not flow easily have

Question # 8

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

Question # 9

Blood is an

Question # 10

Which of the following is a characteristic of an ideal fluid?

Question # 11

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

Question # 12

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 # 13

The term Brownian movement refers to

Question # 14

The analysis of fluid motion becomes simplified by using

Question # 15

According to slok's law, drag force depends on

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:
A. Starts increasing
B. Starts decreasing
C. Becomes constant
D. Is called escape velocity
2 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?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
3 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above
4 What are the SI base units of the coefficient of viscosity
A. Kg m s-2
B. kgm2 s-2
C. Kg m s-1
D. kg m-1s-1
5 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
6 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
7 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
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 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
10 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All

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