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

Blood vessels can be stretch like rubber, therefore they are

Question # 2

Unit of viscosity is:

Question # 3

In a normal healthy person the value of diastolic pressure is

Question # 4

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

Question # 5

The analysis of fluid motion becomes simplified by using

Question # 6

Surface tension of water is reduced by adding

Question # 7

The velocity of falling raindrop attains limited value because of

Question # 8

Where the streamlines are very close to each other, the pressure will be

Question # 9

Bernoulli's equation is based upon law of conversation

Question # 10

What are the SI base units of the coefficient of viscosity

Question # 11

The un-steady streamline flow is called

Question # 12

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

Question # 13

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

Question # 14

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 15

Fog droplets are suspended in air when their weight is balanced by:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.
A. Streamline, cannot
B. Turbulent, cannot
C. Streamline, can
D. None of these
2 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
A. 50 m/s
B. 20 m/s
C. 40 cm/s
D. 5 cm/s
3 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
4 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
5 Machine parts are jammed due to:
A. Increasing in viscosity of lubricant
B. Decreasing in viscosity of lubricant
C. Decreasing in surface tension of lubricant
D. None of these
6 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
7 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
8 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them
9 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
10 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

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