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

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 2

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

Question # 3

In case of streamed lined flow of liquid, the loss of energy is

Question # 4

Fluid friction is _____ the friction between two solid surfaces:

Question # 5

When a water droplet falling freely through air, the drag force on water droplet increases with th

Question # 6

The body passing a viscous medium affected by:

Question # 7

The SI unit of viscosity is

Question # 8

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

Question # 9

The electrical forces between the molecules of a liquid are

Question # 10

In a normal healthy person the value of diastolic pressure is

Question # 11

The flow of an ideal fluid is

Question # 12

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 # 13

With the increase of temperature viscosity

Question # 14

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

Question # 15

The law of conservation of energy gives us

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
2 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above
3 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
4 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
5 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
6 In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
7 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
8 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
9 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
10 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:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball

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