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

In Bernoulli's theorem the relation between velocity and pressure is

Question # 2

The law of conservation of mass gives us the

Question # 3

A flowing liquid possess

Question # 4

Blood pressure is measured by the instrument

Question # 5

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

Question # 6

The velocity of falling raindrop attains limited value because of

Question # 7

Which of the following has the greatest coefficient of viscosity?

Question # 8

The equation of continuity is

Question # 9

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

Question # 10

Ball pen functions on the principle of

Question # 11

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 12

The equation of continuity
A1V1= A2V2is for the flow of

Question # 13

High speed meteors rushing through air reduces to ashes because of:

Question # 14

The smooth or steady streamline flow is known as

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 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
2 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
3 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
4 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
5 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
6 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
7 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
8 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
9 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
10 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

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