ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

Matter is made up of very tiny particles called

Question # 2

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 3

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

Question # 4

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 5

A body is floating in a liquid. The up thrust on the body is

Question # 6

Machine parts are jammed due to:

Question # 7

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 8

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

Question # 9

The internal pressure of the blood is

Question # 10

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 11

In a normal healthy person the value of diastolic pressure is

Question # 12

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 # 13

Bernoulli's equation is applicable for

Question # 14

The velocity of falling raindrop attains limited value because of

Question # 15

An object moving through a fluid experiences a retarding force called a

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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 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 Substances that do not flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
4 The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the
A. orifices
B. efflux
C. fluid
D. none of them
5 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
6 The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
7 When weight of an object falling freely becomes equal to the drag force, then the body will move with
A. increasing speed
B. decreasing speed
C. constant speed
D. none of them
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 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
10 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these

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