Materials and Construction Steel tower used for the storage of oleum Need not be lined Is lined with acid-proof bricks Is lined with lead Is lined with rubber Need not be lined Is lined with acid-proof bricks Is lined with lead Is lined with rubber ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In SO₃ absorber (Contact Process), packing material used is of Chemical stoneware Mild steel Cast iron Karbate Chemical stoneware Mild steel Cast iron Karbate ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Corrosion resisting properties of cast iron are significantly improved by the addition of 12 - 15% of Vanadium All of these Silicon Tungsten Vanadium All of these Silicon Tungsten ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction H₂SO₄ (< 50% concentration) is corrosive to Copper, cast iron & high silicon iron (14% Si) Aluminium, mild steel, stainless steel, concrete & tin Rubber (butyl and hard), silicone rubber & teflon Glass, graphite, porcelain & stoneware Copper, cast iron & high silicon iron (14% Si) Aluminium, mild steel, stainless steel, concrete & tin Rubber (butyl and hard), silicone rubber & teflon Glass, graphite, porcelain & stoneware ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? High frequency transformers Armature of small motors/generators Induction motors Generators and small motors High frequency transformers Armature of small motors/generators Induction motors Generators and small motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction To improve the machinability of steel, it is generally subjected to Tempering Spheroidising Normalising Annealing Tempering Spheroidising Normalising Annealing ANSWER DOWNLOAD EXAMIANS APP