Stress relaxation is- the phenomenon ___________________?

Stress relaxation is- the phenomenon ___________________?

A. in which parts are not loaded
B. in which stress remains constant on in-creasing load
C. in which deformation tends to loosen the joint and produces a stress reduced
D. stress reduces on increasing load
E. none of the above

Carburretion is done to________________?

Carburretion is done to________________?

A. feed petrol into cylinder
B. govern the engine
C. break up and mix the petrol with air
D. heat up the charge to cylinder
E. scavenge the cylinder