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

Bernoulli's equation is applicable for

Question # 2

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

Question # 3

When each particle of the fluid moves along a smoth path, this path is known as

Question # 4

High speed meteors rushing through air reduces to ashes because of:

Question # 5

The density of blood is nearly equal to that of

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The flow of an ideal fluid is

Question # 10

At low speeds, the drag force is

Question # 11

Substances that do not flow easily have

Question # 12

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

Question # 13

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 14

Unit of viscosity is:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
2 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
3 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
4 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
5 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
6 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them
7 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
8 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
9 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
10 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey

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