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

The study of fluid in motion basically involves law of conservation of:

Question # 2

With the increase of temperature viscosity

Question # 3

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

Question # 4

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

Question # 5

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 6

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 7

Rate of flow can be expressed in

Question # 8

What is another name for laminar flow?

Question # 9

Bernoulli's equation is based upon law of conversation

Question # 10

Surface tension of water is reduced by adding

Question # 11

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 12

During the steady flow, different streamlines

Question # 13

In case of streamed lined flow of liquid, the loss of energy is

Question # 14

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 # 15

When each particle of the fluid moves along a smoth path, this path is known as

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
2 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
3 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
4 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
A. 1 cm
B. 2 cm
C. 8 cm
D. None
5 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
6 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force
7 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
8 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
9 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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