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 term Brownian movement refers to

Question # 2

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 3

At low speeds, the drag force is

Question # 4

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

Question # 5

Surface tension of water is due to

Question # 6

The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:

Question # 7

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

Question # 8

The unit of viscosity is SI system is:

Question # 9

Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to

Question # 10

Bernoulli's equation is based upon law of conversation

Question # 11

In Bernoulli's theorem the relation between velocity and pressure is

Question # 12

Bernoulli's equation is based upon law of conservation

Question # 13

Bernoulli's equation is based upon law of conversation of

Question # 14

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

Question # 15

Fluids resist force, This property is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force
2 Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
3 Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Avoid wastage of water
C. Increase the velocity of water flowing out
D. Increase the volume of water flowing per second
4 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m
5 If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term
A. P
B. 1/2 fv2
C. pgh
D. none of them
6 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
7 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous
8 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
9 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
10 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C

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