Materials and Construction How many molecules per unit cell are there in a face centred cubic lettice? 4 2 8 6 4 2 8 6 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron Increases the contraction of the metal Increases the formation of graphite Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the contraction of the metal Increases the formation of graphite Reduces its fluidity Suppresses the decomposition of Fe₃ C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one occupies the lowermost position in the electromotive series of metals? Aluminium Zinc Alkali metals (K, Na, Li) Noble metals (Ag, Pt, Au) Aluminium Zinc Alkali metals (K, Na, Li) Noble metals (Ag, Pt, Au) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ possesses viscoelastic properties. Cork Graphite Glass Rubber Cork Graphite Glass Rubber ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main purpose of galvanising iron sheets is to Increase its glossiness and lustre Prevent the action of water Harden the surface Prevent the action of oxygen Increase its glossiness and lustre Prevent the action of water Harden the surface Prevent the action of oxygen ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main constituent of carborundum is __________ carbide. Aluminium Boron Silicon Calcium Aluminium Boron Silicon Calcium ANSWER DOWNLOAD EXAMIANS APP