Coke oven regenerators are made of ______________ bricks?

Related Mcqs:

1. Coke oven walls are lined with _____________ bricks?

   A. Silica
   B. Tar-dolomite
   C. Low thermal conductivity
   D. Fire clay

2. 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

3. Beehive coke ovens are made of ________________ bricks?

   A. Silica
   B. Fireclay
   C. Silicon carbide
   D. Corundum

4. The specific gravity of coal depends mainly on its ______________ content?

   A. Carbon
   B. Volatile matter
   C. Ash
   D. Moisture

5. Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the ______________ stress?

   A. Ultimate
   B. Yield point
   C. Proof
   D. None of these

6. Aqueous nitric acid is stored in ______________ vessel?

   A. Plain carbon steel
   B. Stainless steel
   C. Cast iron
   D. Thermosetting plastic material

7. Mild steel is a/an ______________ steel?

   A. Low carbon
   B. Medium carbon
   C. High carbon
   D. High alloy

8. Presence of even very minute amount (say 0.1%) of ______________ in copper, reduces its electrical conductivity very seriously?

   A. Bismuth
   B. Arsenic
   C. Antimony
   D. Both B. and C.

9. For storing water and acid free benzol, use a ______________ vessel?

   A. Steel
   B. Karbate
   C. Stainless steel
   D. None of these

10. ‘Hypersil’ is a ______________ steel?

    A. High speed
    B. Silicon
    C. Molybdenum
    D. Tungsten