2343. Water content in the crude oil as it comes out of oil well may be upto __________ percent.
2
5
10
25
✅ The correct answer is option D.
2348. Older crude petroleum
is light and better.
gives more distillates.
gives less tar.
all (a), (b) and (c).
✅ The correct answer is option B.
2353. Choose the correct statement regarding thermal cracking.
Moderate changes in operating temperature does not change the depth of cracking.
Increased residence time results in the decreased severity of cracking.
At low pressure, the yield of lighter hydrocarbons are more.
Greater depth of cracking gives lower octane number gasoline.
✅ The correct answer is option D.
2358. Cetane number of diesel used in trucks may be about
50
14
35
85
✅ The correct answer is option A.
2363. Thermofer catalytic cracking process is a __________ process.
fixed bed
moving bed
fluidised bed
non-catalytic
✅ The correct answer is option D.
2367. Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.
0.1 to 0.5
1.5 to 4.5
7.5 to 12.5
15-20
✅ The correct answer is option B.
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.
2278. Which of the following ceramic packing materials is the costliest of all ?
Berl saddles
Raschig rings
Pall rings
Intalox saddles
✅ The correct answer is option A.
2288. Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the
Physical nature, ash content and fineness of the coal
Amount of excess air supplied and load on the boiler
Type of burner and combustion chamber
All of the above
✅ The correct answer is option D.