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

The smooth or steady stream-line flow is know as

Question # 2

Rate of flow can be expressed in

Question # 3

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 # 4

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 5

The equation of continuity
A1V1= A2V2is for the flow of

Question # 6

The unit of viscosity is SI system is:

Question # 7

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 8

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

Question # 9

Bernoulli's equation is applicable for

Question # 10

At low speeds, the drag force is

Question # 11

The velocity of falling raindrops attains limited value because of

Question # 12

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

Question # 13

The pressure will be low where the speed of the fluid is

Question # 14

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

Question # 15

An object moving through a fluid experiences a retarding force called a

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous
2 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
3 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
4 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
5 When a fluid is in motion, its flow can be considered as
A. turbulent
B. streamline
C. either or them
D. neither of them
6 The law of conservation of mass gives us the
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
7 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
8 The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:
A. 10-16N
B. 10-14N
C. 10-12N
D. 10-10N
9 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
10 Which of the following is a characteristic of an ideal fluid?
A. it is non-viscous
B. it is incompressible
C. it's motion is steady
D. all of the above

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