Materials and Construction A chemical change takes place when iron Melts Rusts Is heated None of these Melts Rusts Is heated None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silicone rubber is not resistant to the corrosive action of Sulphuric acid (95%) Ether Both B and C Sulphuric acid (10%) Sulphuric acid (95%) Ether Both B and C Sulphuric acid (10%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor fatigue resistance Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor toughness Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor fatigue resistance Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor toughness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Addition of nickel to copper improves its Strength Ductility Hardness Machinability Strength Ductility Hardness Machinability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following has the highest compressive strength? Mild steel Wrought iron High carbon steel Cast iron Mild steel Wrought iron High carbon steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Valves in pipe size of 2" and under are normally made of Brass Bronze Monel Wrought iron Brass Bronze Monel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
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