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 law of conservation of mass gives us the

Question # 2

Density of fluid is defined as:

Question # 3

Matter is made up of very tiny particles called

Question # 4

Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?

Question # 5

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

Question # 6

According to slok's law, drag force depends on

Question # 7

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 8

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 # 9

Bernoulli's equation is based upon law of conversation of

Question # 10

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

Question # 11

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

Question # 12

With the increase of temperature viscosity

Question # 13

Ball pen functions on the principle of

Question # 14

The equation of continuity
A1V1= A2V2is for the flow of

Question # 15

The term Brownian movement refers to

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ECAT Class Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
3 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
4 The application of Bernoulli's equation is
A. Torricelli's theorem
B. Venture relation
C. Binomial theorem
D. Both a and b
5 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
6 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None
7 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
8 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
9 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
10 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity

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