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

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

Question # 2

Substances that flow easily have

Question # 3

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 4

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 5

The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is

Question # 6

In a normal healthy person the value of systolic pressure is

Question # 7

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

Question # 8

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

Question # 9

With the increase of temperature viscosity

Question # 10

The flow of an ideal fluid is

Question # 11

When each particle of the fluid moves along a smoth path, this path is known as

Question # 12

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

Question # 13

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

Question # 14

In case of streamed lined flow of liquid, the loss of energy is

Question # 15

Under normal circumstances, the volume of blood is sufficient to keep the vessels

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
2 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?
A. potential energy
B. pressure energy
C. strain energy
D. (a) and (b) only
3 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
4 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
5 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
6 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
A. 0.1 m
B. 0.2 m
C. 0.98 m
D. Full length of the capillary tube
7 Which of the following is a characteristic of an ideal fluid?
A. it is non-viscous
B. it is incompressible
C. it's motion is steady
D. all of the above
8 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
9 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
10 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these

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