Which of the following machine parts always require guards?
Select the 3 answer options that apply.

Fan blades

Levers

Rotating barrels

Abrasive wheel machinery

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.