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

The resistance offered by a fluid to a solid moving inside it is called:

Question # 2

Fluids resist force, This property is called

Question # 3

The application of Bernoulli's equation is

Question # 4

Blood pressure is measured by the instrument

Question # 5

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 6

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

Question # 7

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 8

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

Question # 9

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

Question # 10

The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately

Question # 11

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 12

The irregular and unsteady flow of the fluid is called

Question # 13

A body is floating in a liquid. The up thrust on the body is

Question # 14

Stock's law holds for:

Question # 15

The velocity of falling raindrops attains limited value because of

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
3 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
4 High speed meteors rushing through air reduces to ashes because of:
A. Force of gravity
B. High resistance of air
C. Drag force
D. None of these
5 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
6 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
7 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
8 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
9 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
10 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B

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