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

Bernoulli's equation is applicable for

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Internal friction of fluid is called

Question # 6

Fluids resist force, This property is called

Question # 7

The irregular and unsteady flow of the fluid is called

Question # 8

The fluid which is incompressible and non viscous is called

Question # 9

The direction of the streamlines is the same as the direction of the

Question # 10

The body will move with terminal velocity when it acquires

Question # 11

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 # 12

The velocity of falling raindrops attains limited value because of

Question # 13

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

Question # 14

Fluid friction is _____ the friction between two solid surfaces:

Question # 15

Viscosity is defined as

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 What are the SI base units of the coefficient of viscosity
A. Kg m s-2
B. kgm2 s-2
C. Kg m s-1
D. kg m-1s-1
2 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
3 The SI unit of viscosity is
A. kg m-1s-1
B. kg ms-1
C. kg m-1s-2
D. kg m-1s
4 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
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 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
7 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
8 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is
A. 125 J
B. 90 J
C. 160 J
D. 85 J
9 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
10 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these

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