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 slok's law, drag force depends on

Question # 2

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 3

Bernoulli's equation is based upon law of conservation

Question # 4

A body is moving through a viscous medium eventually comes to rest because of:

Question # 5

Where the streamlines are very far apart from each other, the pressure will be

Question # 6

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 7

Glycerin has viscosity _____ the viscosity of water:

Question # 8

Blood has a density

Question # 9

The mass of fluid passing through any cross-section per unit time is called

Question # 10

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

Question # 11

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 # 12

What is another name for laminar flow?

Question # 13

The irregular and unsteady flow of the fluid is called

Question # 14

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

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 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
2 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
3 The internal pressure of the blood is
A. less than the external atmospheric pressure
B. greater than the external atmospheric pressure
C. equal to the external atmosphericpressure
D. none of them
4 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
5 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
6 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
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 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B
9 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
10 The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:
A. 10-16N
B. 10-14N
C. 10-12N
D. 10-10N

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