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

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 2

With increase of temperature, the viscosity of liquid and gases

Question # 3

The law of conservation of energy gives us

Question # 4

The term Brownian movement refers to

Question # 5

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

Question # 6

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 7

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

Question # 8

Machine parts are jammed due to:

Question # 9

The resistance offered by a fluid to a solid moving inside it is called:

Question # 10

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 11

According to Stoke's law, drag force depends on

Question # 12

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 13

At low speeds, the drag force is

Question # 14

Surface tension of water is due to

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
2 Bernoulli's equation is based upon law of conversation of
A. mass
B. momentum
C. Energy
D. None
3 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
4 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
5 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
6 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
7 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
8 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
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 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force

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