Materials and Construction Lead is Not resistant to corrosion Used as a shock absorber (in mattress form) between the foundation an steel framework of skyscrapper buildings Not used as pigment (in its compound forms) for paints Used as a cathodic material Not resistant to corrosion Used as a shock absorber (in mattress form) between the foundation an steel framework of skyscrapper buildings Not used as pigment (in its compound forms) for paints Used as a cathodic material ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one occupies the lowermost position in the electromotive series of metals? Aluminium Zinc Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Aluminium Zinc Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron 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 Increases the contraction of the metal Increases the formation of graphite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ iron is produced, when molten pig iron is allowed to cool gradually. Wrought White cast None of these Grey cast Wrought White cast None of these Grey cast ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A chemical change takes place when iron Melts Rusts Is heated None of these Melts Rusts Is heated None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Glass lined vessels are not used for handling/storing Hydroflouric acid Dilute HCl Dilute H₂SO₄ Dilute HNO₃ Hydroflouric acid Dilute HCl Dilute H₂SO₄ Dilute HNO₃ ANSWER DOWNLOAD EXAMIANS APP
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