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

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

Question # 2

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

Question # 3

What are the SI base units of the coefficient of viscosity

Question # 4

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

Question # 5

The smooth or steady stream-line flow is know as

Question # 6

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 7

Bernoulli's equation is important in the field of

Question # 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:

Question # 9

The law of conservation of energy gives us

Question # 10

Blood has a density

Question # 11

Pressure exerted by a gas on the walls of its container in due to

Question # 12

Internal friction of fluid is called

Question # 13

Stock's law holds for:

Question # 14

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

Question # 15

Blood vessels can be stretch like rubber, therefore they are

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
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 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
4 The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:
A. More, lesser
B. Lesser, more
C. Both A and B
D. Lesser, lesser
5 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
6 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
7 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
8 The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2
A. 20
B. 200
C. 2000
D. 20,000
9 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
10 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b

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