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

Stock's law holds for:

Question # 2

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

Question # 3

The body will move with terminal velocity when it acquires

Question # 4

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

Question # 5

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 6

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

Question # 7

Fluids resist force, This property is called

Question # 8

The equation of continuity
A1V1= A2V2is for the flow of

Question # 9

The velocity of falling raindrops attains limited value because of

Question # 10

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

Question # 11

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

Question # 12

A massive object falls through a fluid:

Question # 13

Bernoulli's equation is based upon law of conversation of

Question # 14

When a water droplet falls through air, the net force on it is

Question # 15

Glycerin has viscosity _____ the viscosity of water:

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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 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
3 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
4 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
5 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
6 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:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
7 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
8 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
9 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them
10 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less

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