Materials and Construction Which of the following is the most widely used insulating material for steam carray-ing pipelines? Slag wool Ceramic fibre blanket Vermiculite Glass wool and 85% magnesia Slag wool Ceramic fibre blanket Vermiculite Glass wool and 85% magnesia ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Inconel is an alloy of Copper and nickel Copper and tin Iron, nickel and chromium Tin, zinc and nickel Copper and nickel Copper and tin Iron, nickel and chromium Tin, zinc and nickel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cold work tool steel should have Poor hardenability High wear resistance All of these High toughness Poor hardenability High wear resistance All of these High toughness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Concentrated HCl at 30°C can be stored in a vessel made of Cast iron and aluminium Stainless steel and high silicon cast iron None of these PTFE and porcelain Cast iron and aluminium Stainless steel and high silicon cast iron None of these PTFE and porcelain ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron Increases the contraction of the metal Increases the formation of graphite Suppresses the decomposition of Fe₃ C Reduces its fluidity Increases the contraction of the metal Increases the formation of graphite Suppresses the decomposition of Fe₃ C Reduces its fluidity ANSWER DOWNLOAD EXAMIANS APP
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
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