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

Turbulent flow exhibits _______ fluctuations in velocity.

Random

Sinusoidal

Periodic

2 / 40

Which parameter is commonly used to measure turbulence intensity?

Mach number

Reynolds number

Froude number

3 / 40

Which type of flow exhibits eddies and vortices?

Laminar

Turbulent

Transitional

4 / 40

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

Transition

Turbulence

Laminar

5 / 40

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

Increase

Decrease

No effect

6 / 40

The Kolmogorov length scale is associated with _______ turbulence.

Small

Medium

Large

7 / 40

What is the primary cause of energy dissipation in turbulence?

Inertia

Viscosity

Pressure gradients

8 / 40

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

Inertia

Viscosity

Friction

9 / 40

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

Froude number

Mach number

Reynolds number

10 / 40

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

Froude number

Reynolds number

Mach number

11 / 40

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

Transitional

Laminar

Turbulent

12 / 40

Turbulent flow is more common in _______ environments.

Idealized

Natural

Controlled

13 / 40

Turbulent flow is more common in _______ flow regimes.

Low Mach

High Reynolds

Low Reynolds

14 / 40

Which type of boundary layer is more prone to turbulence?

Transitional

Thin

Thick

15 / 40

Turbulent flow has _______ vortices compared to laminar flow.

Smaller

Larger

Equal

16 / 40

What is the main difference between laminar and turbulent flow?

Viscosity

Velocity gradient

Predictability

17 / 40

Which phenomenon is not typically observed in laminar flow?

Laminar sublayers

Vortices

Eddies

18 / 40

The Karman constant is associated with _______ turbulence.

Medium

Large

Small

19 / 40

Turbulent flow is more _______ than laminar flow.

Stable

Chaotic

Predictable

20 / 40

Turbulent flow is _______ predictable than laminar flow.

More

Less

Equally

21 / 40

Turbulence occurs at _______ flow velocities.

High

Medium

Low

22 / 40

Turbulent flow is characterized by _______ fluctuations.

Irregular

Regular

Oscillatory

23 / 40

Which phenomenon is a characteristic of turbulent flow?

Separation

Mixing

Laminar sublayers

24 / 40

Turbulent flow is more _______ than laminar flow.

Chaotic

Predictable

Difficult to predict

25 / 40

The onset of turbulence is influenced by _______.

Prandtl number

Reynolds number

Mach number

26 / 40

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

Froude number

Mach number

Reynolds number

27 / 40

Which phenomenon is a characteristic of turbulent boundary layers?

Eddies

Laminar sublayers

Turbulent mixing

28 / 40

Turbulent flow is characterized by _______ eddies.

Medium

Small

Large

29 / 40

Turbulent flow is more prone to _______ than laminar flow.

Pressure gradients

Heat transfer

Flow separation

30 / 40

Turbulent flow is _______ in energy compared to laminar flow.

Lower

Higher

Equal

31 / 40

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

Parabolic

Linear

Flattened

32 / 40

Turbulence enhances _______ in fluids.

Separation

Stability

Mixing

33 / 40

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

Reynolds number

Thickness

Velocity gradient

34 / 40

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

Thin

Thick

Transitional

35 / 40

Turbulence increases _______ in fluid flow.

Stability

Mixing

Separation

36 / 40

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

Turbulent, laminar

Steady, unsteady

Mean, fluctuating

37 / 40

Turbulence is characterized by _______ flow.

Steady

Laminar

Chaotic

38 / 40

Turbulent flow is characterized by _______ pressure fluctuations.

Uniform

Low

High

39 / 40

Which phenomenon causes turbulent mixing in fluids?

Vortices

Laminar sublayers

Eddies

40 / 40

Turbulent flow is more resistant to _______ than laminar flow.

Flow separation

Pressure gradients

Heat transfer

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