Materials and Construction Lead pipes are not safe for carraying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)₂. Lead pipes are readily corroded by Dilute HC₁ None of these Acetic acid v Dilute HC₁ None of these Acetic acid v ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Plate and frame filter press is usually made of Stainless steel Galvanised iron Mild steel Cast iron Stainless steel Galvanised iron Mild steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. Antimony Bismuth Both B and C Arsenic Antimony Bismuth Both B and C Arsenic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main constituent of carborundum is __________ carbide. Silicon Aluminium Boron Calcium Silicon Aluminium Boron Calcium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Zinc is not used In its oxide form as pigments As an alloying element in various bronzes For producing zinc base die casting alloys As anode for corrosion prevention in boiler In its oxide form as pigments As an alloying element in various bronzes For producing zinc base die casting alloys As anode for corrosion prevention in boiler ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Maximum permissible sulphur content in steel is __________ percent. 0.055 0.805 0.015 0.505 0.055 0.805 0.015 0.505 ANSWER DOWNLOAD EXAMIANS APP
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