Questions
21
Gasoline extracted from natural gas (by compression and cooling) is called the ___________ gasoline?
Answer: Unleaded
22
_____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
Answer: Magnesium
23
Clay treatment is used to remove ___________________ ?
Answer: Wax from lube oil
25
Which parameter is used for the grading of paraffin waxes ?
Answer: Viscosity
26
Higher vapour pressure of gasoline indicates _________________?
Answer: Neither A. nor B.
28
Which of the following fractions of petroleum contains maximum sulphur ?
Answer: Atmospheric residue
29
Good quality kerosene should have__________________?
Answer: High smoke point
30
Catalyst used in alkylation process is__________________?
Answer: Sulphuric acid
32
Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration?
Answer: Both A. and B.
33
The conductivity of crude oil-water mixture depends on the__________________?
Answer: All A., B. and C
35
Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners ?
Answer: Light diesel oil
36
Catalyst used in isomerisation process is __________________ ?
Answer: AlCl3
37
Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than ________________ mg/kg of kerosene?
Answer: 20
38
Catalyst used in the catalytic polymerisation is__________________?
Answer: Phosphoric acid on kieselguhr
39
Crude topping column operates at ________________ pressure?
Answer: Atmospheric
40
A typical yield of diesel in straight run distillation of crude oil may be about ________________ percent?
Answer: 8
