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

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

Question # 2

The mass of fluid passing through any cross-section per unit time is called

Question # 3

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 # 4

Surface tension of water is due to

Question # 5

The body will move with terminal velocity when it acquires

Question # 6

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

Question # 7

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 8

Bernoulli's equation is important in the field of

Question # 9

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 10

Bernoulli's equation is based upon law of conversation

Question # 11

The property of fluids due to which they resist their own flow is called:

Question # 12

The fluid which is incompressible and non viscous is called

Question # 13

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

Question # 14

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

Question # 15

The rain drop falling from the sky reach the ground with

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
3 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
4 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
5 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
6 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
7 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
8 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
9 The terminal velocity of a small size spherical body of radius R moving in a fluid varies as
A. R
B. R2
C. 1/R
D. (1/R)2
10 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity

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