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

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 2

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

Question # 3

What is another name for laminar flow?

Question # 4

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

Question # 5

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 6

Substances that flow easily have

Question # 7

Blood vessels can be stretch like rubber, therefore they are

Question # 8

The fluid is incompressible, if itsdensity is

Question # 9

Bernoulli's equation is applicable for

Question # 10

Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?

Question # 11

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 12

Substances that do not flow easily have

Question # 13

During the steady flow, different streamlines

Question # 14

When a water droplet falls through air, the net force on it is

Question # 15

The electrical forces between the molecules of a liquid are

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
2 The unit of viscosity is SI system is:
A. Kg-1m sec-1
B. Kgm-1 sec-1
C. Kg-1m-1 sec
D. None of these
3 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
4 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2
5 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
6 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
7 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
A. 1.3 m/s
B. 1.6 m/s
C. 1.9 m/s
D. 2.2 m/s
8 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
9 The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the
A. orifices
B. efflux
C. fluid
D. none of them
10 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them

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