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

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 2

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

Question # 3

The fluid which is incompressible and non viscous is called

Question # 4

When each particle of the fluid moves along a smoth path, this path is known as

Question # 5

The equation of continuity
A1V1= A2V2is for the flow of

Question # 6

The electrical forces between the molecules of a liquid are

Question # 7

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

Question # 8

Blood is an

Question # 9

Fog droplets are suspended in air when their weight is balanced by:

Question # 10

The fluid is incompressible, if itsdensity is

Question # 11

The law of conservation of energy gives us

Question # 12

The velocity of falling raindrop attains limited value because of

Question # 13

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 14

In case of streamed lined flow of liquid, the loss of energy is

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
3 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
4 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
5 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
6 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
7 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
8 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
9 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
10 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these

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