Engineering Materials
The lower critical temperature

Increases as the carbon content in steel increases
Is same for all steels
Depends upon the rate of heating
Decreases as the carbon content in steel increases

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Steel contains

50% or more iron
80% or more iron
Elements like phosphorus, sulphur and silicon in varying quantities
Alloying elements like chromium, tungsten nickel and copper

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Stress relaxation is the phenomenon

In which stress remains constant on increasing load
In which deformation tends to loosen the joint and produces a stress reduced
Stress reduces on increasing load
In which parts are not loaded

ANSWER DOWNLOAD EXAMIANS APP