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

Substances that do not flow easily have

Question # 2

Unit of viscosity is:

Question # 3

Bernoulli's equation is based upon law of conservation

Question # 4

Stock's law holds for:

Question # 5

Fire fighters have jet attached to the head of their water pipes in order to

Question # 6

The blood pressure of a person

Question # 7

At low speeds, the drag force is

Question # 8

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

Question # 9

Liquids and gasses have

Question # 10

Drag force increases if speed of the object moving through the fluid:

Question # 11

The internal pressure of the blood is

Question # 12

One torr is equal to

Question # 13

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 14

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 # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.
A. Streamline, cannot
B. Turbulent, cannot
C. Streamline, can
D. None of these
2 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
3 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
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 value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
6 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
7 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
8 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
9 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
10 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these

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