A. Cast iron packed tower
B. Stainless steel plate tower
C. Packed steel tower lined with acid proof bricks
D. None of these
Related Mcqs:
- In SO3 absorber (Contact Process), packing material used is of________________?
A. Cast iron
B. Chemical stoneware
C. Karbate
D. Mild steel - Copper is dissolved from its ore by H2SO4 in a percolation tank made of_________________?
A. Wood
B. Stainless steel
C. Reinforced concrete lined with lead
D. High silicon iron (14% Si) - 100% H2SO4 at 30°C can’t be stored in a vessel made/lined with ___________________?
A. Cast iron and high silicon iron
B. Mild steel and stainless steel
C. Aluminium, tin and rubber
D. Teflon, glass and porcelain - H2SO4 (< 50% concentration) is corrosive to_________________?
A. Aluminium, mild steel, stainless steel, concrete & tin
B. Copper, cast iron & high silicon iron (14% Si)
C. Rubber (butyl and hard), silicone rubber & Teflon
D. Glass, graphite, porcelain & stoneware - Bearings subjected to light load are made of________________?
A. White metal
B. Phosphorous bronze
C. Monel
D. Silicon bronze - Post weld heat treatment is done by____________________?
A. Normalising
B. Stress relieving
C. Tempering
D. Solution annealing - Aqueous nitric acid is stored in ______________ vessel?
A. Plain carbon steel
B. Stainless steel
C. Cast iron
D. Thermosetting plastic material - Which of the following is the most prone to atmospheric corrosion ?
A. Silver
B. Iron
C. Tin
D. Copper - Which of the following undergoes granular fracture ?
A. Wrought iron
B. Steel
C. Cast iron
D. None of these - Which has the maximum melting point out of the following ?
A. Steel
B. Cast iron
C. Stainless steel
D. Wrought iron
