Materials and Construction As the impurities are oxidised, the melting point of iron Remains unchanged Decreases May increase or decrease ; unpredictable Increases Remains unchanged Decreases May increase or decrease ; unpredictable Increases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cast iron has Elastic limit close to ultimate breaking strength High ductility Very high tensile strenth High malleability Elastic limit close to ultimate breaking strength High ductility Very high tensile strenth High malleability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain Decreases very quickly Increases very quickly Decreases in proportion to stress Increases in proportion to stress Decreases very quickly Increases very quickly Decreases in proportion to stress Increases in proportion to stress ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the softest material? Calcite Corrundum Flourite Quartz Calcite Corrundum Flourite Quartz ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction To improve the machinability of steel by its softening, it is subjected to Annealing Shot blasting Cold working Heating Annealing Shot blasting Cold working Heating ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ iron is produced, when molten pig iron is chilled suddenly. Wrought None of these White cast Grey cast Wrought None of these White cast Grey cast ANSWER DOWNLOAD EXAMIANS APP
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