ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

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 # 2

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

Question # 3

Machine parts are jammed due to:

Question # 4

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 # 5

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 6

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

Question # 7

In a normal healthy person the value of systolic pressure is

Question # 8

During the steady flow, different streamlines

Question # 9

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

Question # 10

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 11

0.10 cm can be written as:

Question # 12

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 13

Unit of viscosity is:

Question # 14

Which of the following has the greatest coefficient of viscosity?

Question # 15

The equation of continuity is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
2 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
3 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
4 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
5 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
6 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
7 Pressure exerted by a gas on the walls of its container in due to
A. adhesion between the gas molecules and the container
B. cohesion between the gas molecules and the container
C. collision between the gas molecules and the container
D. surface tension of the gas
8 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
9 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
10 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity

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