ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

Rate of flow can be expressed in

Question # 2

Where the streamlines are very far apart from each other, the pressure will be

Question # 3

Blood is an

Question # 4

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 # 5

Ball pen functions on the principle of

Question # 6

When the different streamlines cannot cross each other, then this condition is known as

Question # 7

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

Question # 8

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 9

The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately

Question # 10

The smooth or steady streamline flow is known as

Question # 11

The blood pressure of a person

Question # 12

At high altitude the blood oozes out of the nose and ear because

Question # 13

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 # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is
A. 5000 cms-1
B. 500 cms-1
C. 50 cms-1
D. 0.5 cm/s
2 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
3 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
4 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
5 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
6 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
7 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
8 A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is
A. 50 m/s
B. 20 m/s
C. 40 cm/s
D. 5 cm/s
9 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
10 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them

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