Which of the following is a characteristic of streamline flow?
a) Irregular motion of fluid particles
b) Smooth and orderly motion of fluid particles
c) Presence of eddies and swirls
d) High velocity flow
Streamline flow is also known as:
a) Turbulent flow
b) Laminar flow
c) Steady flow
d) Chaotic flow
Which of the following is true for turbulent flow?
a) Fluid moves in parallel layers
b) The flow is steady and predictable
c) The flow exhibits random fluctuations and swirls
d) There is no mixing of the fluid
At what Reynolds number does the flow typically transition from streamline to turbulent?
a) 500
b) 1000
c) 2000
d) 5000
Which of the following is a characteristic of turbulent flow?
a) High viscosity
b) Smooth, organized fluid motion
c) Fluid layers moving in parallel
d) Presence of eddies, vortices, and irregularities
Which of the following fluids would most likely exhibit turbulent flow at high speeds?
a) Water
b) Honey
c) Oil
d) Glycerin
What is the primary cause of turbulence in a fluid?
a) Low fluid viscosity
b) High fluid velocity
c) High fluid density
d) Smooth pipe surface
Which of the following best describes the velocity profile of streamline flow?
a) Parabolic velocity distribution
b) Uniform velocity distribution
c) Random velocity distribution
d) No velocity gradient
For flow through a pipe, the transition from streamline to turbulent flow typically occurs when the Reynolds number exceeds:
a) 500
b) 2000
c) 4000
d) 10000
In turbulent flow, the fluid motion is:
a) Smooth and laminar
b) Steady and uniform
c) Chaotic with eddies and vortices
d) Parallel and non-mixing
Which of the following is a common example of turbulent flow?
a) Blood flow in arteries
b) Water flowing through a smooth pipe at low velocity
c) Air flow over an airplane wing
d) Oil moving through a highly viscous pipe
In streamline flow, the fluid velocity:
a) Varies randomly
b) Is constant throughout the flow field
c) Increases with distance from the boundary
d) Decreases with distance from the boundary
For which of the following conditions would you expect turbulent flow?
a) High flow velocity and smooth surface
b) Low flow velocity and rough surface
c) High flow velocity and rough surface
d) Low flow velocity and smooth surface
In which of the following scenarios is streamline flow most likely to occur?
a) Air moving over a turbulent ocean
b) Water flowing through a small, smooth pipe at low velocity
c) Fluid flowing through a wide, rough pipe at high velocity
d) Blood flowing rapidly through an artery
The boundary layer in streamline flow is:
a) Always turbulent
b) Smooth with a uniform velocity profile
c) Thin and has a velocity gradient
d) A constant thickness
What type of flow is characterized by no random fluctuations in the velocity of fluid particles?
a) Turbulent flow
b) Laminar flow
c) Steady flow
d) Transitional flow
In the context of flow through a pipe, which of the following statements is true for turbulent flow?
a) The fluid velocity is uniform across the pipe
b) The flow is highly predictable and steady
c) The flow exhibits irregular fluctuations and swirls
d) The fluid follows a straight path with no cross-currents
What happens to the velocity profile in turbulent flow compared to streamline flow?
a) The velocity profile becomes more uniform
b) The velocity profile becomes parabolic
c) The velocity profile becomes irregular and fluctuates
d) The velocity profile becomes linear
What factor has the most significant effect on whether flow will be laminar or turbulent?
a) Fluid density
b) Fluid velocity
c) Pipe material
d) Pipe length
Which of the following is NOT a characteristic of turbulent flow?
a) Presence of eddies
b) High flow rate
c) Smooth flow layers
d) Chaotic motion of fluid particles
At a high Reynolds number, the flow is:
a) Always laminar
b) Always turbulent
c) Sometimes laminar, sometimes turbulent
d) Stable and steady
Which of the following is most likely to exhibit streamline flow?
a) Water flowing through a rough pipe at high velocity
b) Blood flow through arteries
c) Air flow over a flat plate at high speed
d) Oil flowing through a small, smooth pipe at low velocity
For a fluid to exhibit streamline flow, the fluid velocity must be:
a) High and turbulent
b) Low and steady
c) High and steady
d) Low and unsteady
In which of the following conditions is the flow most likely to become turbulent?
a) Fluid with low velocity and high viscosity
b) Fluid with high velocity and low viscosity
c) Fluid with high velocity and high viscosity
d) Fluid with low velocity and low viscosity
Which of the following is true about the velocity profile in laminar flow?
a) The velocity is highest at the center and decreases toward the edges
b) The velocity is uniform across the pipe
c) The velocity fluctuates randomly
d) The velocity is zero at the center and increases towards the edges
How does the surface roughness of a pipe affect the flow type?
a) Smoother surfaces encourage turbulent flow
b) Rougher surfaces encourage laminar flow
c) Rougher surfaces encourage turbulent flow
d) Surface roughness does not affect the flow type
Which of the following is an example of a fluid flow that is most likely to be turbulent?
a) Air moving slowly over a flat surface
b) Water flowing gently through a small, smooth pipe
c) Blood moving rapidly through the human circulatory system
d) Oil flowing slowly through a large pipe
