time after which smoking starts on burning.
temperature at which smoking starts.
maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp.
none of these.
✅ The correct answer is option C.
Engineering
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2372. Visbreaking process is used mainly for making
high cetane diesel
high octane gasoline
fuel oil
smoke free kerosene
✅ The correct answer is option C.
2373. A balance sheet for a chemical plant shows its financial condition at any given date. It does not contain the __________ of the plant.
current asset
current liability
long term debt
profit
✅ The correct answer is option D.
2374. Which of the following is not a component of the fixed capital for a chemical plant facility?
Raw materials inventory.
Utilities plants.
Process equipment.
Emergency facilities.
✅ The correct answer is option A.
2375. Catalyst used in the isomerisation is
aluminium chloride
alumina
nickel
phosphoric acid
✅ The correct answer is option A.
2376. Overfire burning in a furnace is a phenomenon characterised by
Supply of excess fuel
Supply of excess air
Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air
None of these
✅ The correct answer is option C.
2377. Scaling of furnace stock is reduced by __________ in flue gas.
CO
H₂
High CO/CO₂
All of the above
✅ The correct answer is option D.
2378. Combustion of fuel in a furnace with oxygen enriched air results in higher
Flue gas volume
Flame temperature
Fuel consumption
Stack loss
✅ The correct answer is option B.
2379. An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.
Resistance
Arc
Low frequency induction
None of these
✅ The correct answer is option B.
2380. If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.
Sidefired
Underfired
Covered
Recirculating
✅ The correct answer is option B.