In the following cases, is the flow laminar or turbulent? i. Flow in a wide rectangular channel at a flow velocity of 1 m/s at 1m flow depth. ii. Flow in a wide rectangular channel at a flow velocity of 0.1 m/s at 2 mm flow depth.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)

The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal