Materials And Construction - Study Mode
[#246] Hardening of steel is not possible unless it is heated __________ critical point.
Correct Answer
(B) Above the lowest
[#247] Mild steel is a/an __________ steel.
Correct Answer
(A) Low carbon
[#248] __________ is added in low carbon steel to raise its yield point.
Correct Answer
(D) Manganese
[#249] Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.
Correct Answer
(D) Cobalt
[#250] Telfon (PTFE) is corroded by
Correct Answer
(D) None of these