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

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

Question # 2

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 # 3

Substances that flow easily have

Question # 4

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 5

What is another name for laminar flow?

Question # 6

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

Question # 7

The SI unit of viscosity is

Question # 8

Surface tension of water is reduced by adding

Question # 9

When the speed of a body in a fluid increases then the drag force

Question # 10

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 11

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 12

Which of the following has the greatest coefficient of viscosity?

Question # 13

Glycerin has viscosity _____ the viscosity of water:

Question # 14

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

Question # 15

The application of Bernoulli's equation is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
2 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
3 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
4 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
5 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
6 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
7 High speed meteors rushing through air reduces to ashes because of:
A. Force of gravity
B. High resistance of air
C. Drag force
D. None of these
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 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
10 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these

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