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

The body will move with terminal velocity when it acquires

Question # 2

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 3

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 4

The velocity of falling raindrops attains limited value because of

Question # 5

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 6

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 7

Substances that flow easily have

Question # 8

According to Stoke's law, drag force depends on

Question # 9

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

Question # 10

The analysis of fluid motion becomes simplified by using

Question # 11

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

Question # 12

0.10 cm can be written as:

Question # 13

The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2

Question # 14

Ball pen functions on the principle of

Question # 15

At high speed, fluid friction _____ and fuel consumption ___,:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
2 The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is
A. stethoscope
B. thermometer
C. manometer
D. barometer
3 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
4 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
5 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
6 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
7 Unit of viscosity is:
A. Kg m-1sec-1
B. N s m-2
C. J s m-3
D. All of these
8 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
9 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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