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

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 2

The property of fluids due to which they resist their own flow is called:

Question # 3

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

Question # 4

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 5

A device used to measure the speed of liquid flow is known as

Question # 6

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:

Question # 7

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

Question # 8

The unit of viscosity is SI system is:

Question # 9

Bernoulli's equation is important in the field of

Question # 10

In Bernoulli's theorem the relation between velocity and pressure is

Question # 11

The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2

Question # 12

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

Question # 13

Bernoulli's equation is based upon law of conversation

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 internal pressure of the blood is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
2 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
3 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
4 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity
5 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force
6 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
7 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
8 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid
A. speed
B. height
C. none of them
D. both of them
9 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
10 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar

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