1000
4000
8000
15000
✅ The correct answer is option C.
Chemical Engineering MCQs
Micum Index of a coke is a measure of its
Reactivity
Porosity
Bulk density
Hardness & strength
✅ The correct answer is option D.
Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent.
6
12
18
24
✅ The correct answer is option D.
Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.
1000
4000
6000
8000
✅ The correct answer is option B.
Which of the following is not endothermic?
Cracking
Reforming
Gasification
Partial oxidation
✅ The correct answer is option D.
Calorific value of dry wood may be around __________ Kcal/kg.
5
50
500
5000
✅ The correct answer is option A.
Which of the following would require maximum amount of % excess air for complete combustion?
Coke oven gas
Furnace oil
Pulverised coal
Lump coal (fixed on chain grate)
✅ The correct answer is option D.
The cuprous chloride used in orsat apparatus can absorb
Only CO
Both CO and CO₂
Both CO and O₂
All of the above
✅ The correct answer is option D.
Too much of excess air in combustion results in high
Fuel consumption for the same heat load
Stack gas temperature
Percentage of oxygen in flue gases
All of the above
✅ The correct answer is option D.
Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.
1800
3200
5400
10200
✅ The correct answer is option C.