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

Internal friction of fluid is called

Question # 2

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 3

What are the SI base units of the coefficient of viscosity

Question # 4

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

Question # 5

Substances that do not flow easily have

Question # 6

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 # 7

Which of the following has the greatest coefficient of viscosity?

Question # 8

The smooth or steady stream-line flow is know as

Question # 9

The dimensions of viscosity are:

Question # 10

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 11

Bernoulli's equation is important in the field of

Question # 12

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 13

What is another name for laminar flow?

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
2 The term Brownian movement refers to
A. irregular motions of small particles suspended in a fluid
B. convection currents in a liquid or gas
C. convection currents in a gas but not in a liquid
D. the stretching of a body beyond its elastic limit
3 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
4 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
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
5 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
6 Under normal circumstances, the volume of blood is sufficient to keep the vessels
A. flatted for all times
B. inflated for all times
C. inflated for small times
D. none of them
7 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
8 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
9 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
10 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these

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