Materials and Construction Lead pipe is Usually joined by burning (e.g. by melting to adjacent pieces with a torch) Especially resistant to solutions containing H₂SO₄ All of these Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain Usually joined by burning (e.g. by melting to adjacent pieces with a torch) Especially resistant to solutions containing H₂SO₄ All of these Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Most suitable material for high pressure vessel operating at 500 atm. and 500° C is Molybdenum stainless steel Mild steel High silicon iron (14% Si) 18/8 stainless steel Molybdenum stainless steel Mild steel High silicon iron (14% Si) 18/8 stainless steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Galvanising (i.e., zinc coating) of steel sheets is done to Prevent its rusting by contact with corrosive atmosphere Neither A nor B Protect the base metal by cathodic protection Both A & B Prevent its rusting by contact with corrosive atmosphere Neither A nor B Protect the base metal by cathodic protection Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal (used for making bearings) comprises of Copper and aluminium Mainly tin (85%) and lead Saw dust and iron dust mixture Zinc and aluminium Copper and aluminium Mainly tin (85%) and lead Saw dust and iron dust mixture Zinc and aluminium 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. 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 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 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the easiest to bend? Cast iron Stainless steel Wrought iron Steel Cast iron Stainless steel Wrought iron Steel ANSWER DOWNLOAD EXAMIANS APP
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