The dielectric constant of petroleum products is
A.less than that of porcelain
B.more than that of porcelain
C.zero
D.equal to or more than that of porcelain
Category: Petroleum Refining Engineering Mcqs
Which of the following is / are used as anticing compounds?
A.Alcohols
B.Amyl nitrate
C.Tetra ethyl lead
D.Ethyl mercaptan
In the atmospheric distillation of crude petroleum
A.the content of sulphur increases from lighter fraction to heavier ones with the residue having the highest concentration of sulphur
B.the content of sulphur deccreases from lighter fraction to heavier ones with the residue having the lowest concentration of sulphur
C.the content of nitrogen decreases from lighter fraction to heavier ones with the residue having the lowest concentration of nitrogen
D.none of the above
The general formula of naphthenes is
A.CnH2n+2
B.CnH2n-2
C.CnH2n-6
D.CnH2n
In sweetening MEROX process for kersine the mercaptans are converted into
A.disulphides
B.sulphur
C.hydrogen sulphide
D.all of the above
Fire point of a given sample is
A.equal to the flash point
B.higher than the flash point
C.less than the flash point
D.equal to or less than the flash point
Which of the following compounds is used in antiknock compositions to prevent the deposition of oxides of lead on spark plug combustion chamber and exhaust line?
A.Methyl tertiary butyl ether
B.Ethylene dibromide
C.Ethyl mercaptan
D.Armyl nitrate
The conductivity of a mixture of crude oil-water mixture
A.is independent of the amount of water present
B.decreases with increase in the amount of water
C.increases with increase in the amount of water
D.decreases linearly with increase in the amount of water
Low sulphur diesel fuels are advantageous because
A.they are less corrosive
B.they are less liable to carbonization
C.they form exhaust gases low in sulphurous and sulphuric anhydrides
D.all of the above
The nitrogen compounds in the petroleum products are responsible for
A.loss in catalyst activity
B.colour instability of the products
C.formation of gums
D.all of the above
