Chemical Engineering Basics - Study Mode
[#211] Pick out the wrong statement about the machinability of metals. Machinability of a metal
Correct Answer
(D) Decreases with increases in tensile strength & decrease in grain size
[#212] Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
Correct Answer
(D) Thermal co-efficient of expansion
[#213] Temper brittleness of a material can be fairly detected by the __________ test.
Correct Answer
(B) Notched bar impact
[#214] Hardening of steel is not possible, unless it is heated __________ critical point.
Correct Answer
(B) Above the lowest
[#215] Presence of sulphur in steel reduces the
Correct Answer
(D) Toughness & transverse ductility