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

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 2

During the steady flow, different streamlines

Question # 3

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

Question # 4

The SI unit of viscosity is

Question # 5

The smooth or steady stream-line flow is know as

Question # 6

Substances that flow easily have

Question # 7

The resistance offered by a fluid to a solid moving inside it is called:

Question # 8

The equation of continuity
A1V1= A2V2is for the flow of

Question # 9

The fluid is incompressible, if itsdensity is

Question # 10

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 11

The dimensions of viscosity are:

Question # 12

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

Question # 13

Fire fighters have jet attached to the head of their water pipes in order to

Question # 14

Surface tension of water is reduced by adding

Question # 15

In a normal healthy person the value of diastolic pressure is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Blood vessels can be stretch like rubber, therefore they are
A. rigid
B. hard
C. very thick
D. not rigid
2 Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is
A. 1/4 times
B. 4 times
C. Twice
D. 1/2 of 8 cm diameter pipe
3 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
4 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid
A. speed
B. height
C. none of them
D. both of them
5 What are the SI base units of the coefficient of viscosity
A. Kg m s-2
B. kgm2 s-2
C. Kg m s-1
D. kg m-1s-1
6 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
7 Which of the following options states the names of fluids in the order of increasing viscosity?
A. mercury, motor oil, methanol
B. methanol, mercury, motor oil
C. motor oil, mercury, methanol
D. methanol, motor oil, mercury
8 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
9 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
10 When the velocity of a liquid flowing steadily in a tube increases, its pressure?
A. Decreases
B. Increases
C. Remains same
D. Zero

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