The water in volume per cent used in the electrical desalting of crude oils varies normally between
A.3 and 8
B.20 and 30
C.10 and 15
D.15 and 20
Category: Petroleum Refining Engineering Mcqs
Cetane number of hepta methl nonane is taken to be
A.0
B.15
C.100
D.42
Viscosity index of an oil
A.indicates the rate of change of viscosity with temperature
B.indicates the viscosity of 100?F
C.indicates the rate of change of viscosity with pressure
D.indicates the rate of change of specific gravity with pressure
Sulphur content in the kerosine is determined generally by
A.quartz tube method
B.bomb method
C.lamp method
D.none of the above
Which of the following impurities in the crude petroleum is the most prolific producer of HCI during distillation?
A.Sodium chloride
B.Magnesium chloride
C.Calcium chloride
D.Potassium chloride
The general formula of olefins is
A.CnH2n-2
B.CnH2n-4
C.CnH2n+2
D.CnH2n
Pour point of Bombay High crude oil is
A.18?C
B.30?C
C.?15?C
D.?50?C
GASOHOL is a mixture of petrol and
A.water
B.ethyl alcohol
C.kerosine
D.high speed diesel oil
The refractive index of naththas varies
A.inversely with both wave length and temperature
B.directly with both wave length and temperature
C.inversely with wave length and directly with temperature
D.directly with wave length and inversely with temperature
Which of the following compounds is added in LPG to impart a distinct odour?
A.Amyl nitrate
B.Ethyl mercaptan
C.Tetra ethyl lead
D.Phenol
