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

The blood pressure of a person

Question # 2

A massive object falls through a fluid:

Question # 3

Which of the following has the greatest coefficient of viscosity?

Question # 4

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 5

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

Question # 6

According to the Bernoulli's theorem the pressure velocity are

Question # 7

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

Question # 8

Bernoulli's equation is applicable for

Question # 9

Substances that do not flow easily have

Question # 10

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 11

Fluids resist force, This property is called

Question # 12

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

Question # 13

The equation of continuity
A1V1= A2V2is for the flow of

Question # 14

With increase of temperature, the viscosity of liquid and gases

Question # 15

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

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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 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
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 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
5 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
6 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
7 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
8 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
A. 1 cm
B. 2 cm
C. 8 cm
D. None
9 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them
10 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar

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