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

The velocity of falling raindrops attains limited value because of

Question # 2

At low speeds, the drag force is

Question # 3

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

Question # 4

The body will move with terminal velocity when it acquires

Question # 5

Internal friction of fluid is called

Question # 6

The analysis of fluid motion becomes simplified by using

Question # 7

The application of Bernoulli's equation is

Question # 8

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

Question # 9

According to slok's law, drag force depends on

Question # 10

The term Brownian movement refers to

Question # 11

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

Question # 12

The law of conservation of energy gives us

Question # 13

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 14

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 15

The equation of continuity is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Blood vessels can be stretch like rubber, therefore they are
A. rigid
B. hard
C. very thick
D. not rigid
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 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 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
5 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
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 If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be
A. 1 cm
B. 2 cm
C. 8 cm
D. None
8 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
9 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
10 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar

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