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

Where the streamlines are very far apart from each other, the pressure will be

Question # 2

The unit of viscosity is SI system is:

Question # 3

A high concentration of red blood cells increases its viscosity from

Question # 4

With increase of temperature, the viscosity of liquid and gases

Question # 5

The law of conservation of mass gives us the

Question # 6

Stock's law holds for:

Question # 7

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

Question # 8

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

Question # 9

The velocity of falling raindrops attains limited value because of

Question # 10

Internal friction of fluid is called

Question # 11

The blood pressure of a person

Question # 12

The irregular and unsteady flow of the fluid is called

Question # 13

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 14

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

Question # 15

The fluid which is incompressible and non viscous is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
2 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them
3 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
4 Deep water almost runs still when surface water flow in rivers. What does it explains
A. Magnus effect
B. Equation of continuity
C. Surface energy
D. Bernoulli's equation
5 The term Brownian movement refers to
A. irregular motions of small particles suspended in a fluid
B. convection currents in a liquid or gas
C. convection currents in a gas but not in a liquid
D. the stretching of a body beyond its elastic limit
6 When the different streamlines cannot cross each other, then this condition is known as
A. continuity condition
B. turbulent flow condition
C. steady flow condition
D. none of them
7 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
8 With increase of temperature, the viscosity of liquid and gases
A. Increases for both
B. Decreases for both
C. Increases for liquids and decreases for gases
D. Decreases for liquids and increases for gases
9 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
10 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water

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