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 property of fluids due to which they resist their own flow is called:

Question # 2

0.10 cm can be written as:

Question # 3

What is another name for laminar flow?

Question # 4

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

Question # 5

The rain drop falling from the sky reach the ground with

Question # 6

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 7

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 8

Blood vessels can be stretch like rubber, therefore they are

Question # 9

Bernoulli's equation is based upon law of conversation

Question # 10

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

Question # 11

The term Brownian movement refers to

Question # 12

The law of conservation of mass gives us the

Question # 13

Viscosity is defined as

Question # 14

Surface tension of water is reduced by adding

Question # 15

Deep water almost runs still when surface water flow in rivers. What does it explains

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity
A. v/A = constant
B. A/v = constant
C. Av = constant
D. None
3 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
4 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
5 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
6 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B
7 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
8 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
9 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
10 One torr is equal to
A. 13.33 N/m2
B. 760 N/m2
C. 760 mm Hg
D. 133.3 N/m2

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