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

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

Question # 2

Bernoulli's equation is based upon law of conservation

Question # 3

One torr is equal to

Question # 4

The mass of fluid passing through any cross-section per unit time is called

Question # 5

Rate of flow can be expressed in

Question # 6

When the speed of a body in a fluid increases then the drag force

Question # 7

What are the SI base units of the coefficient of viscosity

Question # 8

According to the Bernoulli's theorem the pressure velocity are

Question # 9

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

Question # 10

The dimensions of viscosity are:

Question # 11

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 # 12

Unit of viscosity is:

Question # 13

Fog droplets are suspended in air when their weight is balanced by:

Question # 14

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
3 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
4 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
5 The law of conservation of mass gives us the
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
6 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
7 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
8 When weight of an object falling freely becomes equal to the drag force, then the body will move with
A. increasing speed
B. decreasing speed
C. constant speed
D. none of them
9 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
10 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All

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