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

Rate of flow can be expressed in

Question # 2

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Question # 3

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

Question # 4

The pressure will be low where the speed of the fluid is

Question # 5

Which of the following has the greatest coefficient of viscosity?

Question # 6

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

Question # 7

Surface tension of water is reduced by adding

Question # 8

The property of fluids due to which they resist their own flow is called:

Question # 9

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 10

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?

Question # 11

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

Question # 12

Bernoulli's equation is important in the field of

Question # 13

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 14

When a fluid is in motion, its flow can be considered as

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
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 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
4 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
5 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
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
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 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
8 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
9 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
10 The smooth or steady streamline flow is known as
A. laminar flow
B. turbulent flow
C. both of them
D. none of them

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