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

Bernoulli's equation is based upon law of conversation of

Question # 2

Bernoulli's equation is based upon law of conservation

Question # 3

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

Question # 4

Viscosity is defined as

Question # 5

Blood pressure is measured by the instrument

Question # 6

At low speeds, the drag force is

Question # 7

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

Question # 8

A high concentration of red blood cells increases its viscosity from

Question # 9

Surface tension of water is due to

Question # 10

At the starting point of the free fall motion of an object, its acceleration will be

Question # 11

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

Question # 12

A massive object falls through a fluid:

Question # 13

Drag force increases if speed of the object moving through the fluid:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None
2 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
3 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
4 Which of the following options states the names of fluids in the order of increasing viscosity?
A. mercury, motor oil, methanol
B. methanol, mercury, motor oil
C. motor oil, mercury, methanol
D. methanol, motor oil, mercury
5 What are the SI base units of the coefficient of viscosity
A. Kg m s-2
B. kgm2 s-2
C. Kg m s-1
D. kg m-1s-1
6 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
7 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
8 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
9 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
10 When the different streamlines cannot cross each other, then this condition is known as
A. continuity condition
B. turbulent flow condition
C. steady flow condition
D. none of them

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