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 Screw dislocation Twinning Solid solution hardening Strain ageing Screw dislocation Twinning Solid solution hardening ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Evaporator used for concentrating tomato juice is made of Nickel Brass Stainless steel-glass lined Cast iron-rubber lined Nickel Brass Stainless steel-glass lined Cast iron-rubber lined ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A bearing metal should not have High toughness Low co-efficient of friction Low thermal conductivity Enough plasticity High toughness Low co-efficient of friction Low thermal conductivity Enough plasticity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its Low temperature strength properties Its ability to be cast, rolled, forged & stamped High strength to weight ratio High strength and corrosion & oxidation-resistance at elevated temperature Low temperature strength properties Its ability to be cast, rolled, forged & stamped High strength to weight ratio High strength and corrosion & oxidation-resistance at elevated temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Galvanised iron is None of these Alumina coated iron Protected from rusting Harder None of these Alumina coated iron Protected from rusting Harder ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron Increases the formation of graphite Increases the contraction of the metal Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the formation of graphite Increases the contraction of the metal Reduces its fluidity Suppresses the decomposition of Fe₃ C ANSWER DOWNLOAD EXAMIANS APP
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