Materials and Construction Which of the following is the hardest material? Flourite Topaz Corrundum Quartz Flourite Topaz Corrundum Quartz ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the softest material? Corrundum Calcite Quartz Flourite Corrundum Calcite Quartz Flourite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wood is corroded by Hydrochloric acid SO₂ (dry or wet) Chlorine (dry or wet) All of these Hydrochloric acid SO₂ (dry or wet) Chlorine (dry or wet) All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Work hardening of a material Decreases its tensile strength Does not affect its ductility Decreases its ductility Increases its ductility Decreases its tensile strength Does not affect its ductility Decreases its ductility Increases its ductility 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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