Materials and Construction Lead Is the lightest metal in common use Can not be scratched by finger nails Can not be work hardened Is the hardest metal in common use Is the lightest metal in common use Can not be scratched by finger nails Can not be work hardened Is the hardest metal in common use ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Gunmetal and bronze are not corroded by the action of Wet chlorine Synthetic detergent solution Hydrochloric acid (10%) Nitric acid (< 25%) Wet chlorine Synthetic detergent solution Hydrochloric acid (10%) Nitric acid (< 25%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is a donor impurity for semi-conductors. None of these Gallium Boron Antimony None of these Gallium Boron Antimony ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The process of coating steel sheets by zinc to improve its corrosion resistance is called Zincification Calorising Galvanising Tempering Zincification Calorising Galvanising Tempering ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A material is called 'ductile', if it can be Made lustrous by heating it Drawn into wires Hammered to a thin sheet Fractured without deformation Made lustrous by heating it Drawn into wires Hammered to a thin sheet Fractured without deformation ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain Increases very quickly Decreases very quickly Decreases in proportion to stress Increases in proportion to stress Increases very quickly Decreases very quickly Decreases in proportion to stress Increases in proportion to stress ANSWER DOWNLOAD EXAMIANS APP
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