71. Which of the following petroleum products contain minimum sulphur ?
Naphtha
Kerosene
LSHS
Furnace oil
✅ The correct answer is option A.
Petroleum Refinery Engineering MCQs
72. The colour of gasoline is an indication of its
octane number.
lead susceptibility.
gum forming tendency & thoroughness of refining.
none of these.
✅ The correct answer is option C.
73. Crude oil is subjected to vacuum distillation in the last stage, because
high boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose.
lighter/low boiling products are prone to thermal decomposition.
high purity products can be obtained thereby.
none of these.
✅ The correct answer is option A.
74. Road grade bitumen is produced from vacuum residue by its
aeration
pyrolysis
hydrogenation
steam reforming
✅ The correct answer is option D.
75. Which of the following is the most suitable feed for platforming process (reforming) ?
Olefinic hydrocarbon
Naphtha
Fuel oil
Atmospheric residue
✅ The correct answer is option A.
76. Polymerisation
produces i-octane from cracked gases containing i-butane and butene.
causes olefins to combine with each other.
causes aromatics to combine with each other.
is aimed at producing lubricating oil.
✅ The correct answer is option B.
77. Naphthenic acid is a/an __________ compound.
sulphur
nitrogen
oxygen
none of these
✅ The correct answer is option C.
78. Visbreaking
uses natural gas as feed.
is carried out at atmospheric pressure.
produces fuel oil of lower viscosity.
produces gasoline only.
✅ The correct answer is option C.
79. Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c).
one fourth
one third
half
one eighth
✅ The correct answer is option C.
80. Diesel index.(an alternative index for expressing the quality of diesel) is
determined by using a test engine.
not related to aniline point.
equal to cetane number plus 3.
all (a), (b) & (c).
✅ The correct answer is option C.