2900. Which of the following factors does not govern the mechanism of petroleum formation from organic sources ?
pH of the soil
Bacterial action
Heat
Pressure
✅ The correct answer is option A.
2904. Aniline point of high speed diesel may be about __________ °C.
35
70
105
150
✅ The correct answer is option B.
2908. Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API) ?
Diesel
Gasoline
Atmospheric gas oil
Vacuum gas oil
✅ The correct answer is option B.
2877. A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.
8
18
28
35
✅ The correct answer is option A.
2882. Penetration test determines the __________ of the grease.
stiffness
lubricating properties (e.g. oilness)
service temperature
variation in viscosity with temperature
✅ The correct answer is option A.
2886. Catalyst used in catalytic polymerisation which produces polymer gasoline is
H2SO4
H3PO4
both (a) and (b)
AlCl3
✅ The correct answer is option C.
2891. Petroleum coke is commercially produced by the __________ process.
hydrocracking
visbreaking
fluid catalytic cracking
delayed coking
✅ The correct answer is option D.
2893. Mercapsol and Unisol processes are meant for the
dearomatisation of kerosene
removal of mercaptans
dewaxing
decoloration
✅ The correct answer is option B.
2894. Pick out the additive property of a lube oil out of following.
°API gravity
Specific gravity
Viscosity
Flashpoint
✅ The correct answer is option A.
2905. True boiling point apparatus is used for the
determination of characterisation factor.
evaluation of oil stocks.
determination of true vapour pressure.
none of these.
✅ The correct answer is option B.