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

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

Question # 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:

Question # 3

The blood pressure of a person

Question # 4

When a water droplet falling freely through air, the drag force on water droplet increases with th

Question # 5

In Bernoulli's theorem the relation between velocity and pressure is

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

Which of the following has the greatest coefficient of viscosity?

Question # 10

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

Question # 11

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 12

The law of conservation of mass gives us the

Question # 13

The equation of continuity
A1V1= A2V2is for the flow of

Question # 14

Surface tension of water is due to

Question # 15

The value of viscosity of a fluid is dependent on (at constant temperature)

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 The SI unit of viscosity is
A. kg m-1s-1
B. kg ms-1
C. kg m-1s-2
D. kg m-1s
3 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
4 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
5 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
6 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
7 The property of fluids due to which they resist their own flow is called:
A. Drag force
B. Surface tension
C. Viscosity
D. None of these
8 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
9 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
10 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them

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