Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around _______________ percent?

Related Mcqs:

1. Shatter index of the coke is a measure of its___________________?

   A. Strength
   B. Bulk density
   C. Reactivity

   D. None of these

2. Volatile matter content of metallurgical coke may be around ______________ percent?

   A. 1-2
   B. 10-15
   C. 22-26
   D. 30-33

3. Quantity of coke produced from metallurgical coal may be around _____________ percent?

   A. 30
   B. 50
   C. 75
   D. 95

4. Caking index of the coal blend used for the manufacture of metallurgical coke should be around__________________?

   A. 5
   B. 21
   C. 40
   D. 48

5. Desirable “Micum Index” values of metallurgical coke are ___________________?

   A. M40 > 78% and M10 < 10%
   B. M40 > 4% and M10 10% and M10 98% and M10 < 2%

6. A good metallurgical coke should have very low__________________?

   A. Sulphur & phosphorous content
   B. Porosity
   C. Fusion point of its ash
   D. Hardness & strength

7. Higher percentage of ash in coal meant for the production of metallurgical grade coke ___________________?

   A. Decreases the hardness of coke
   B. Decreases the abrasion resistance of coke
   C. Causes brittleness in steel
   D. None of these

8. During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the _______________ of the mass?

   A. Density
   B. Porosity
   C. Electrical resistivity
   D. None of these

9. Abrasion index of blast furnace coke should be around _____________ percent?

   A. 20
   B. 35
   C. 55
   D. 80

10. Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about _______________ percent?

    A. 5
    B. 25
    C. 55
    D. 75