A point D is 25mm from HP and 30mm from VP. Draw its projection in 1 and 3 quadrant

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

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