Materials and Construction Atmospheric corrosion of metals result from their Slow dehydration Fast hydration Fast oxidation Slow oxidation Slow dehydration Fast hydration Fast oxidation Slow oxidation ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Copper has very low Thermal & electrical conductivity Tensile strength Malleability Ductility Thermal & electrical conductivity Tensile strength Malleability Ductility ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Glass is corroded by Sulphuric acid Fluorine (dry or wet) Phosphoric acid None of these Sulphuric acid Fluorine (dry or wet) Phosphoric acid None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. Antimony Both B and C Arsenic Bismuth Antimony Both B and C Arsenic Bismuth ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of nitrogen in steel Makes it brittle Increases its hardness Is desirable Increases its strength Makes it brittle Increases its hardness Is desirable Increases its strength 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 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 Increases very quickly ANSWER DOWNLOAD EXAMIANS APP
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