MECHANICAL ENGINEERING QUESTIONS
1.)What is the difference between shear center flexural center of twist and elastic center?
Ans:-The shear center is the centroid of a crosssection. The flexural center is the center of twist, which is the point on a beam that you can add a load without torsion. The elastic center is located at the center of gravity. If the object is homogeneous and symmetrical in both directions of the cross section then they are all equivalent.
2.) Explain Otto cycle.
Ans:-Otto cycle can be explained by a pressure volume relationship diagram. It shows the functioning cycle of a four stroke engine. The cycle starts with an intake stroke, closing the intake and moving to the compression stroke, starting of combustion, power stroke, heat exchange stroke where heat is rejected and the exhaust stroke. It was designed by Nicolas Otto, a German engineer.
3.)What is ductile brittle transition temperature?
Ans:-It is the temperature below which the tendency of a material to fracture increases rather than forming. Below this temperature the material loses its ductility. It is also called Nil Ductility Temperature.
4.)What is isometric drawing?
Ans:-It is a 3D drawing used by draftsmen, architects etc
No comments:
Post a Comment