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

Question # 2

Matter is made up of very tiny particles called

Question # 3

Where the streamlines are very close to each other, the pressure will be

Question # 4

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 5

Stock's law holds for:

Question # 6

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 7

Blood has a density

Question # 8

The blood pressure of a person

Question # 9

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

Question # 10

The electrical forces between the molecules of a liquid are

Question # 11

Viscosity is defined as

Question # 12

The velocity of falling raindrops attains limited value because of

Question # 13

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

Question # 14

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
2 When weight of an object falling freely becomes equal to the drag force, then the body will move with
A. increasing speed
B. decreasing speed
C. constant speed
D. none of them
3 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
4 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
5 A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow
A. 1.3 m/s
B. 1.6 m/s
C. 1.9 m/s
D. 2.2 m/s
6 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
7 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
8 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
9 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
10 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow

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