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

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 2

In Bernoulli's theorem the relation between velocity and pressure is

Question # 3

The equation of continuity
A1V1= A2V2is for the flow of

Question # 4

The smooth or steady streamline flow is known as

Question # 5

Blood vessels can be stretch like rubber, therefore they are

Question # 6

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

Question # 7

According to the Bernoulli's theorem the pressure velocity are

Question # 8

0.10 cm can be written as:

Question # 9

The un-steady streamline flow is called

Question # 10

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 11

The internal pressure of the blood is

Question # 12

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

Question # 13

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 14

The analysis of fluid motion becomes simplified by using

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is
A. 5000 cms-1
B. 500 cms-1
C. 50 cms-1
D. 0.5 cm/s
2 High speed meteors rushing through air reduces to ashes because of:
A. Force of gravity
B. High resistance of air
C. Drag force
D. None of these
3 Which of the following is a characteristic of an ideal fluid?
A. it is non-viscous
B. it is incompressible
C. it's motion is steady
D. all of the above
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 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
6 When each particle of the fluid moves along a smoth path, this path is known as
A. straight path
B. smooth path
C. haphazard path
D. steamline
7 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
8 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
9 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
10 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these

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