Materials and Construction Which of the following has the poorest wel-dability? High-carbon steel Wrought iron Low carbon steel Mild steel High-carbon steel Wrought iron Low carbon steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Mild steel is A high carbon steel (0.5 to 1.5% carbon) Highly resistant to corrosion (as much as stainless steel) A low carbon steel (0.05 to 0.3% carbon) Very poor in strength & ductility A high carbon steel (0.5 to 1.5% carbon) Highly resistant to corrosion (as much as stainless steel) A low carbon steel (0.05 to 0.3% carbon) Very poor in strength & ductility 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 in proportion to stress Decreases very quickly Increases very quickly Increases in proportion to stress Decreases in proportion to stress Decreases very quickly Increases very quickly Increases in proportion to stress ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cold work tool steel should have Poor hardenability High wear resistance High toughness All of these Poor hardenability High wear resistance High toughness All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following pairs of elements may form an alloy? Iron & mercury Iron & carbon None of these Platinum & mercury Iron & mercury Iron & carbon None of these Platinum & mercury ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Ceramic materials are Stronger in compression than in tension Always amorphous in nature Always bad heat conductors Organic in nature Stronger in compression than in tension Always amorphous in nature Always bad heat conductors Organic in nature ANSWER DOWNLOAD EXAMIANS APP
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