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

At the starting point of the free fall motion of an object, its acceleration will be

Question # 2

With increase of temperature, the viscosity of liquid and gases

Question # 3

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

Question # 4

The fluid is incompressible, if itsdensity is

Question # 5

Machine parts are jammed due to:

Question # 6

According to Stoke's law, drag force depends on

Question # 7

At high altitude the blood oozes out of the nose and ear because

Question # 8

Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?

Question # 9

The fluid which is incompressible and non viscous is called

Question # 10

Surface tension of water is reduced by adding

Question # 11

Density of fluid is defined as:

Question # 12

The property of fluids due to which they resist their own flow is called:

Question # 13

A flowing liquid possess

Question # 14

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

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 The electrical forces between the molecules of a liquid are
A. Repulsive
B. Attractive
C. Both A and B
D. None
2 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
3 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
4 The SI unit of viscosity is
A. kg m-1s-1
B. kg ms-1
C. kg m-1s-2
D. kg m-1s
5 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
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 density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
8 Under normal circumstances, the volume of blood is sufficient to keep the vessels
A. flatted for all times
B. inflated for all times
C. inflated for small times
D. none of them
9 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
10 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None

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