Fluid Mechanics-Physics

Which of the following is NOT an example of laminar flow?

• a river moving slowly in a straight line
• smoke rising upward in a smooth column through air
• water flowing evenly from a slight opened faucet
• smoke twisting as it moves upward from a fire

Which of the following properties is NOT a characteristic of an ideal fluid?

• laminar flow
• turbulent flow
• nonviscous
• incompressable

Which of the following is NOT an example of unites for expressing pressure?

• N/m²
• kg/m²
• atm
• Pa

Which of the following is NOT an example of turbulent flow?

• a river flowing slowly in a straight line
• a river flowing swiftly around rocks in rapids
• water flowing unevenly from a fully opened faucet
• smoke twisting as it moves upward from a fire.

Which of the following statements does NOT describe an ideal fluid at constant temperature?

• An ideal fluid is incompressible
• The flow of an ideal fluid is always steady
• An ideal fluid has internal friction (viscosity)
• An ideal fluid has constant density

the line around the airweng is

• laminar
• turbulent 
• the fluid layers do not moves in straight line
• the fluid cross each other