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

What is another name for laminar flow?

Question # 2

What are the SI base units of the coefficient of viscosity

Question # 3

A flowing liquid possess

Question # 4

Liquids and gasses have

Question # 5

The density of blood is nearly equal to that of

Question # 6

Substances that do not flow easily have

Question # 7

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:

Question # 8

In a normal healthy person the value of systolic pressure is

Question # 9

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

Question # 10

A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is

Question # 11

The direction of the streamlines is the same as the direction of the

Question # 12

The fluid is incompressible, if itsdensity is

Question # 13

According to the Bernoulli's theorem the pressure velocity are

Question # 14

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

Question # 15

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
2 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
3 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
4 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
5 Stoke;s law is not applicable when the speed of the object moving through a fluid is:
A. Zero
B. Small
C. Large
D. None of these
6 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
7 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
8 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
9 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
10 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

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