Turbulence MCQs with Answers

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Turbulence Online Quiz

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• Test Name: Turbulence MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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Turbulence

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1 / 40

The Reynolds decomposition separates flow variables into _______ and _______ components.

Steady, unsteady

Mean, fluctuating

Turbulent, laminar

2 / 40

The onset of turbulence is influenced by _______.

Mach number

Prandtl number

Reynolds number

3 / 40

Which phenomenon is not typically observed in laminar flow?

Vortices

Eddies

Laminar sublayers

4 / 40

What is the main difference between laminar and turbulent boundary layers?

Thickness

Velocity gradient

Reynolds number

5 / 40

The Richardson number is used to predict the onset of _______ in fluid flow.

Transition

Turbulence

Laminar

6 / 40

Turbulent flow has _______ vortices compared to laminar flow.

Equal

Smaller

Larger

7 / 40

What is the primary cause of energy dissipation in turbulence?

Inertia

Pressure gradients

Viscosity

8 / 40

Which parameter is commonly used to measure turbulence intensity?

Froude number

Reynolds number

Mach number

9 / 40

Which type of boundary layer is more prone to turbulence?

Thin

Thick

Transitional

10 / 40

Which phenomenon is a characteristic of turbulent flow?

Laminar sublayers

Separation

Mixing

11 / 40

Which parameter plays a crucial role in determining the onset of turbulence?

Froude number

Mach number

Reynolds number

12 / 40

Turbulent flow is more common in _______ environments.

Idealized

Natural

Controlled

13 / 40

Which type of flow exhibits eddies and vortices?

Transitional

Turbulent

Laminar

14 / 40

Turbulence occurs at _______ flow velocities.

Medium

Low

High

15 / 40

Turbulent flow is characterized by _______ pressure fluctuations.

High

Uniform

Low

16 / 40

Which type of boundary layer is more prone to transition to turbulence?

Thick

Transitional

Thin

17 / 40

Turbulent flow is more _______ than laminar flow.

Chaotic

Predictable

Difficult to predict

18 / 40

What is the primary effect of increasing Reynolds number on turbulence?

No effect

Decrease

Increase

19 / 40

Turbulent flow is characterized by _______ fluctuations.

Regular

Oscillatory

Irregular

20 / 40

Turbulent flow is more prone to _______ than laminar flow.

Flow separation

Heat transfer

Pressure gradients

21 / 40

Turbulent flow is more resistant to _______ than laminar flow.

Flow separation

Heat transfer

Pressure gradients

22 / 40

Which type of flow is characterized by smooth, orderly motion?

Transitional

Turbulent

Laminar

23 / 40

Turbulence enhances _______ in fluids.

Separation

Mixing

Stability

24 / 40

What is the primary cause of increased pressure drop in turbulent flow?

Inertia

Viscosity

Friction

25 / 40

What is the typical shape of a velocity profile in turbulent flow?

Linear

Flattened

Parabolic

26 / 40

The Kolmogorov length scale is associated with _______ turbulence.

Small

Large

Medium

27 / 40

Turbulence increases _______ in fluid flow.

Mixing

Separation

Stability

28 / 40

Which phenomenon causes turbulent mixing in fluids?

Vortices

Laminar sublayers

Eddies

29 / 40

Turbulence is characterized by _______ flow.

Steady

Chaotic

Laminar

30 / 40

Turbulent flow is _______ predictable than laminar flow.

Less

More

Equally

31 / 40

What is the main difference between laminar and turbulent flow?

Predictability

Velocity gradient

Viscosity

32 / 40

Which phenomenon is a characteristic of turbulent boundary layers?

Turbulent mixing

Laminar sublayers

Eddies

33 / 40

The Karman constant is associated with _______ turbulence.

Large

Medium

Small

34 / 40

What is the primary factor that determines the size of turbulent eddies?

Mach number

Froude number

Reynolds number

35 / 40

Turbulent flow is characterized by _______ eddies.

Large

Small

Medium

36 / 40

The transition from laminar to turbulent flow occurs at a critical _______.

Mach number

Froude number

Reynolds number

37 / 40

Turbulent flow is more _______ than laminar flow.

Stable

Chaotic

Predictable

38 / 40

Turbulent flow is more common in _______ flow regimes.

Low Mach

Low Reynolds

High Reynolds

39 / 40

Turbulent flow exhibits _______ fluctuations in velocity.

Random

Periodic

Sinusoidal

40 / 40

Turbulent flow is _______ in energy compared to laminar flow.

Lower

Equal

Higher

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