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 pressure will be low where the speed of the fluid is

Question # 2

Bernoulli's equation is based upon law of conservation

Question # 3

The study of fluid in motion basically involves law of conservation of:

Question # 4

The internal pressure of the blood is

Question # 5

Pressure exerted by a gas on the walls of its container in due to

Question # 6

Stock's law holds for:

Question # 7

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

Question # 8

At low speeds, the drag force is

Question # 9

The density of blood is nearly equal to that of

Question # 10

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 11

Surface tension of water is reduced by adding

Question # 12

The flow of an ideal fluid is

Question # 13

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 14

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 15

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

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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 electrical forces between the molecules of a liquid are
A. Repulsive
B. Attractive
C. Both A and B
D. None
3 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
4 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
5 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
6 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
7 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
8 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
9 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
10 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes

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