Lurgi
Kopper-Totzek
Winkler
None of these
✅ The correct answer is option A.
Engineering
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3232. __________ prohibits the use of alcohols directly in petrol engines.
Low octane number
High cost & availability
Low flash point
Low calorific value
✅ The correct answer is option B.
3233. The calorific value is the highest out of the following for
Producer gas
Water gas
Coke oven gas
Blast furnace gas
✅ The correct answer is option C.
3234. Which of the following is not a by-product recovered in a high temperature coal carbonisation plant?
Benzol
Pitch-cresosote mixture (PCM)
Napthalene
Ethylene
✅ The correct answer is option D.
3235. The internal energy of the combustion products is __________ compared to that of reactants.
More
Less
Equal
More or less ; (depends on the state of fuel.)
✅ The correct answer is option B.
3236. Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain
CO
CO₂
H₂O
Both B & C
✅ The correct answer is option D.
3237. Stack heat losses can be minimised by
Controlling the excess air
Oxygen enrichment of combustion air
Using low c.v. fuels
Maintaining proper draft in the furnace
✅ The correct answer is option A.
3238. Laboratory gas is obtained by the cracking of
Gasoline
Diesel
Fuel oil
Kerosene
✅ The correct answer is option D.
3239. L.D. converter gas (produced in steel plant) comprises mainly of
CO (upto 65%) & CO₂
CO₂ & H₂
CO & O₂
CO₂ & O₂
✅ The correct answer is option A.
3240. Naphthalene recovered from coke oven gas is used
As moisture proof coating on fibres
As moth balls (insecticides)
As a fuel in furnaces
For making electrodes
✅ The correct answer is option B.