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 equation of continuity
A1V1= A2V2is for the flow of

Question # 2

The internal pressure of the blood is

Question # 3

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

Question # 4

Viscosity is defined as

Question # 5

A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is

Question # 6

When a fluid is in motion, its flow can be considered as

Question # 7

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

Question # 8

Stock's law holds for:

Question # 9

The term Brownian movement refers to

Question # 10

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 11

With the increase of temperature viscosity

Question # 12

The body passing a viscous medium affected by:

Question # 13

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

Question # 14

Substances that do not flow easily have

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
3 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
4 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
5 Which of the following options states the names of fluids in the order of increasing viscosity?
A. mercury, motor oil, methanol
B. methanol, mercury, motor oil
C. motor oil, mercury, methanol
D. methanol, motor oil, mercury
6 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
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 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
9 The law of conservation of mass gives us the
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
10 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

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