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 equation of continuity is

Question # 2

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

Question # 3

Liquids and gasses have

Question # 4

The smooth or steady stream-line flow is know as

Question # 5

Viscosity is defined as

Question # 6

0.10 cm can be written as:

Question # 7

Bernoulli's equation is based upon law of conversation

Question # 8

Blood vessels can be stretch like rubber, therefore they are

Question # 9

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 10

Machine parts are jammed due to:

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

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

Question # 14

The unit of viscosity is SI system is:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
2 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid
A. speed
B. height
C. none of them
D. both of them
3 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
4 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
5 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
6 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them
7 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
8 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
9 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity
10 A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from

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