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

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 2

Where the streamlines are very far apart from each other, the pressure will be

Question # 3

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 4

Glycerin has viscosity _____ the viscosity of water:

Question # 5

The rain drop falling from the sky reach the ground with

Question # 6

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

Question # 7

0.10 cm can be written as:

Question # 8

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

Question # 9

Pressure exerted by a gas on the walls of its container in due to

Question # 10

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 11

The value for systolic blood pressure for a normal healthy person is

Question # 12

Liquids and gasses have

Question # 13

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

Question # 14

The velocity of falling raindrop attains limited value because of

Question # 15

The flow of an ideal fluid is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
2 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them
3 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
4 In a normal healthy person the value of diastolic pressure is
A. 75 - 80 torr
B. 100 torr
C. 120 torr
D. none of them
5 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
6 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B
7 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
8 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
9 Stock's law holds for:
A. Motion through free space
B. Motion through viscous medium
C. Bodies of all shapes
D. None of these
10 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above

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