Materials and Construction Which of the following is the hardest material? Corrundum Flourite Topaz Quartz Corrundum Flourite Topaz Quartz ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the softest material? Calcite Corrundum Quartz Flourite Calcite Corrundum Quartz Flourite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wood is corroded by SO₂ (dry or wet) Hydrochloric acid Chlorine (dry or wet) All of these SO₂ (dry or wet) Hydrochloric acid Chlorine (dry or wet) All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Work hardening of a material Increases its ductility Decreases its ductility Does not affect its ductility Decreases its tensile strength Increases its ductility Decreases its ductility Does not affect its ductility Decreases its tensile strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wrought iron is High carbon iron Malleable & ductile; and hence is used for chain links, hooks & couplings Highly resistance to acid corrosion An alloy of iron, chromium & carbon High carbon iron Malleable & ductile; and hence is used for chain links, hooks & couplings Highly resistance to acid corrosion An alloy of iron, chromium & carbon ANSWER DOWNLOAD EXAMIANS APP
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