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

The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is

Question # 2

Under normal circumstances, the volume of blood is sufficient to keep the vessels

Question # 3

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 4

Ball pen functions on the principle of

Question # 5

When a water droplet falls through air, the net force on it is

Question # 6

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 7

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 8

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 9

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 10

Surface tension of water is due to

Question # 11

The density of blood is nearly equal to that of

Question # 12

With increase of temperature, the viscosity of liquid and gases

Question # 13

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

Question # 14

A massive object falls through a fluid:

Question # 15

Bernoulli's equation is important in the field of

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
2 In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called
A. Quadratic equation
B. Equation of discontinuity
C. Equation of continuity
D. None of the above
3 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
4 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
5 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
6 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
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 The effect of friction between different layers of a flowing fluid is described in terms of
A. motion of fluid
B. nature of fluid
C. colour of fluid
D. viscosity of fluid
9 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
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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