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

The flow of an ideal fluid is

Question # 2

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 3

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

Question # 4

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 5

0.10 cm can be written as:

Question # 6

Machine parts are jammed due to:

Question # 7

The equation of continuity is

Question # 8

Rate of flow can be expressed in

Question # 9

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 10

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

Question # 11

The electrical forces between the molecules of a liquid are

Question # 12

Surface tension of water is reduced by adding

Question # 13

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 14

The density of blood is nearly equal to that of

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
2 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
3 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
4 Bernoulli's equation is based upon law of conversation of
A. mass
B. momentum
C. Energy
D. None
5 When weight of an object falling freely becomes equal to the drag force, then the body will move with
A. increasing speed
B. decreasing speed
C. constant speed
D. none of them
6 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
7 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
8 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
9 Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Avoid wastage of water
C. Increase the velocity of water flowing out
D. Increase the volume of water flowing per second
10 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid

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