Materials and Construction __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. Strain ageing Solid solution hardening Twinning Screw dislocation Strain ageing Solid solution hardening Twinning Screw dislocation ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%? Nickel Cast iron Karbate Steel Nickel Cast iron Karbate Steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Mild steel is A low carbon steel (0.05 to 0.3% carbon) A high carbon steel (0.5 to 1.5% carbon) Very poor in strength & ductility Highly resistant to corrosion (as much as stainless steel) A low carbon steel (0.05 to 0.3% carbon) A high carbon steel (0.5 to 1.5% carbon) Very poor in strength & ductility Highly resistant to corrosion (as much as stainless steel) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Iron rust is Hydrated ferric oxide Powdered iron Ferric sulphide Ferrous oxide Hydrated ferric oxide Powdered iron Ferric sulphide Ferrous oxide ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Among the tin containing alloys, __________ consumes the maximum amount of tin. Bronzes White metal Solder Pewter matal Bronzes White metal Solder Pewter matal ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Invar used in thermocouples is an alloy of nickel and Copper Chromium Iron Lead Copper Chromium Iron Lead ANSWER DOWNLOAD EXAMIANS APP