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

According to the Bernoulli's theorem the pressure velocity are

Question # 2

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

Question # 3

The smooth or steady streamline flow is known as

Question # 4

Blood vessels can be stretch like rubber, therefore they are

Question # 5

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

Question # 6

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 7

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

Question # 8

Fluids resist force, This property is called

Question # 9

Where the streamlines are very close to each other, the pressure will be

Question # 10

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

Question # 11

At the starting point of the free fall motion of an object, its acceleration will be

Question # 12

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

Question # 13

Matter is made up of very tiny particles called

Question # 14

A device used to measure the speed of liquid flow is known as

Question # 15

Drag force increases if speed of the object moving through the fluid:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
3 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
4 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
A. turbulent
B. streamline
C. abrupt
D. none of them
5 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
6 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
7 If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity
A. v/A = constant
B. A/v = constant
C. Av = constant
D. None
8 When the different streamlines cannot cross each other, then this condition is known as
A. continuity condition
B. turbulent flow condition
C. steady flow condition
D. none of them
9 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
10 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small

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