Materials and Construction Light weight metallic alloy used in aircraft industry is High silicon (14%) iron Aluminium Phosphor bronze Duralumin High silicon (14%) iron Aluminium Phosphor bronze Duralumin ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction With increase in carbide/graphite ratio in cast iron, its Neither A nor B Ductility decreases Hardness & brittleness increases Both A & B Neither A nor B Ductility decreases Hardness & brittleness increases Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Titanium metal Can not be welded Is used in oceanographic and space exploration applications Exists in three allotropic forms None of these Can not be welded Is used in oceanographic and space exploration applications Exists in three allotropic forms None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Generally __________ are subjected to galvanising (i.e., zinc coating). Non-metals Non-ferrous metals Stainless steel Low carbon steels Non-metals Non-ferrous metals Stainless steel Low carbon steels ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction How many molecules per unit cell are there in a face centred cubic lettice? 2 6 4 8 2 6 4 8 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Most common stainless steel type 316, which is highly resistant to corrosion contains 2-4% Cr, 22% NI and 2-4% Mo None of these 20-22% Cr, and 8-10% Ni 16-13% Cr 10-14% Ni and 2-3% Mo 2-4% Cr, 22% NI and 2-4% Mo None of these 20-22% Cr, and 8-10% Ni 16-13% Cr 10-14% Ni and 2-3% Mo ANSWER DOWNLOAD EXAMIANS APP
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