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

0.10 cm can be written as:

Question # 2

A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is

Question # 3

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

Question # 4

The law of conservation of mass gives us the

Question # 5

The smooth or steady streamline flow is known as

Question # 6

The resistance offered by a fluid to a solid moving inside it is called:

Question # 7

What is another name for laminar flow?

Question # 8

The electrical forces between the molecules of a liquid are

Question # 9

The equation of continuity
A1V1= A2V2is for the flow of

Question # 10

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

Question # 11

Viscosity is defined as

Question # 12

Rate of flow can be expressed in

Question # 13

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

Question # 14

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 15

A high concentration of red blood cells increases its viscosity from

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force
2 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
3 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
4 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
5 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
6 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
7 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
8 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
9 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
10 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

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