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

When a water droplet falls through air, the net force on it is

Question # 2

Where the streamlines are very close to each other, the pressure will be

Question # 3

The smooth or steady streamline flow is known as

Question # 4

A device used to measure the speed of liquid flow is known as

Question # 5

Bernoulli's equation is based upon law of conversation of

Question # 6

What is another name for laminar flow?

Question # 7

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

Question # 8

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

Question # 9

The flow of an ideal fluid is

Question # 10

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 11

What are the SI base units of the coefficient of viscosity

Question # 12

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

Question # 13

Unit of viscosity is:

Question # 14

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

Question # 15

During the steady flow, different streamlines

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous
3 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these
4 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
A. turbulent
B. streamline
C. abrupt
D. none of them
5 Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
6 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None
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 fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
9 Substances that do not flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
10 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them

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