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

Bernoulli's equation is applicable for

Question # 2

The application of Bernoulli's equation is

Question # 3

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

Question # 4

Unit of viscosity is:

Question # 5

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

Question # 6

Drag force increases if speed of the object moving through the fluid:

Question # 7

A device used to measure the speed of liquid flow is known as

Question # 8

A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is

Question # 9

Fluid friction is _____ the friction between two solid surfaces:

Question # 10

The smooth or steady stream-line flow is know as

Question # 11

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

Question # 12

Surface tension of water is reduced by adding

Question # 13

Substances that do not flow easily have

Question # 14

In a normal healthy person the value of systolic pressure is

Question # 15

Blood pressure is measured by the instrument

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
2 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
3 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
4 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
5 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
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
6 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
7 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
8 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
9 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
10 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere

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