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

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

Question # 2

The smooth or steady stream-line flow is know as

Question # 3

Liquids and gasses have

Question # 4

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 5

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 6

What are the SI base units of the coefficient of viscosity

Question # 7

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

Question # 8

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 9

In case of streamed lined flow of liquid, the loss of energy is

Question # 10

Machine parts are jammed due to:

Question # 11

Substances that flow easily have

Question # 12

One torr is equal to

Question # 13

Fluid friction is _____ the friction between two solid surfaces:

Question # 14

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 15

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
2 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
3 In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called
A. Quadratic equation
B. Equation of discontinuity
C. Equation of continuity
D. None of the above
4 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
A. 2.5 ms-1
B. 3.2 ms-1
C. 4.3 ms-1
D. 1.1 ms-1
5 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
6 The property of fluids due to which they resist their own flow is called:
A. Drag force
B. Surface tension
C. Viscosity
D. None of these
7 Stoke;s law is not applicable when the speed of the object moving through a fluid is:
A. Zero
B. Small
C. Large
D. None of these
8 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
9 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
10 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them

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