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

Glycerin has viscosity _____ the viscosity of water:

Question # 2

The equation of continuity is

Question # 3

The term Brownian movement refers to

Question # 4

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 5

Blood has a density

Question # 6

Which of the following is a characteristic of an ideal fluid?

Question # 7

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 # 8

The fluid which is incompressible and non viscous is called

Question # 9

Bernoulli's equation is based upon law of conversation of

Question # 10

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

Question # 11

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 12

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 13

At the starting point of the free fall motion of an object, its acceleration will be

Question # 14

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 15

The density of blood is nearly equal to that of

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
2 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
3 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
4 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
5 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
6 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
7 Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is
A. 1/4 times
B. 4 times
C. Twice
D. 1/2 of 8 cm diameter pipe
8 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
9 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
10 What are the SI base units of the coefficient of viscosity
A. Kg m s-2
B. kgm2 s-2
C. Kg m s-1
D. kg m-1s-1

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