A. Silica
B. Tar-dolomite
C. Low thermal conductivity
D. Fire clay
Related Mcqs:
- Coke oven regenerators are made of ______________ bricks?
A. Fire clay
B. Silica
C. Low thermal conductivity
D. High electrical conductivity - Bog iron used for the adsorption of H2S from coke oven gas is___________________?
A. An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide)
B. Iron impregnated with resin (usually Bakelite)
C. Carbon free iron
D. None of these - Beehive coke ovens are made of ________________ bricks?
A. Silica
B. Fireclay
C. Silicon carbide
D. Corundum - Caustic soda is transported in _____________ lined containers ?
A. Glass
B. Nickel
C. Neoprene
D. Either B. or C. - Lead lined equipments & vessels are suitable for handling __________________?
A. Hydrochloric acid (10%)
B. Nitric acid
C. Sulphuric acid upto 60°C
D. All A., B. and C. - Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with__________________?
A. Acidic refractory
B. Rubber
C. Karbate
D. Lead or acid-proof bricks - Rotary kilns in cement industry are lined with _____________bricks?
A. Fireclay
B. Silica
C. Lead
D. High alumina & high magnesia - 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 - Sulphuric acid pickling tanks are lined with__________________?
A. Nickel
B. Rubber
C. Aluminium
D. Glass - Fermenter used in the production of penicillin by deep fermentation process is a ______________ lined steel vessel ?
A. Rubber
B. Monel
C. Glass
D. Nickel
