Materials and Construction Which of the following is the hardest material? Topaz Flourite Corrundum Quartz Topaz Flourite Corrundum Quartz ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the softest material? Corrundum Quartz Calcite Flourite Corrundum Quartz Calcite 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 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 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wrought iron is High carbon iron Highly resistance to acid corrosion Malleable & ductile; and hence is used for chain links, hooks & couplings An alloy of iron, chromium & carbon High carbon iron Highly resistance to acid corrosion Malleable & ductile; and hence is used for chain links, hooks & couplings An alloy of iron, chromium & carbon ANSWER DOWNLOAD EXAMIANS APP
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