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

Bernoulli's equation is based upon law of conversation of

Question # 2

Matter is made up of very tiny particles called

Question # 3

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

Question # 4

The internal pressure of the blood is

Question # 5

Which of the following is a characteristic of an ideal fluid?

Question # 6

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

Question # 7

When a water droplet falls through air, the net force on it is

Question # 8

The unit of viscosity is SI system is:

Question # 9

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 10

The density of blood is nearly equal to that of

Question # 11

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

Question # 12

Density of fluid is defined as:

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 In Bernoulli's theorem the relation between velocity and pressure is
A. Inverse
B. Direct
C. None of the above
D. Both a and b
2 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
3 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
4 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
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 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
7 The electrical forces between the molecules of a liquid are
A. Repulsive
B. Attractive
C. Both A and B
D. None
8 The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is
A. very high
B. very low
C. constant
D. zero
9 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
10 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them

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