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 law of conservation of energy gives us

Question # 2

The law of conservation of mass gives us the

Question # 3

The value for systolic blood pressure for a normal healthy person is

Question # 4

One torr is equal to

Question # 5

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

Question # 6

The equation of continuity is

Question # 7

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 8

Glycerin has viscosity _____ the viscosity of water:

Question # 9

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

Question # 10

Unit of viscosity is:

Question # 11

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 12

In a normal healthy person the value of systolic pressure is

Question # 13

Which of the following has the greatest coefficient of viscosity?

Question # 14

Liquids and gasses have

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
2 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
3 Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Avoid wastage of water
C. Increase the velocity of water flowing out
D. Increase the volume of water flowing per second
4 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
5 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
6 A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from
7 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
8 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
9 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
10 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them

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