Which is almost absent in crude petroleum ?
A. Olefins
B. Mercaptans
C. Naphthenes
D. Cycloparaffins
Petroleum Refinery Engineering
Hydrocracking employs ___________________?
Hydrocracking employs ___________________?
A. High pressure & temperature
B. Low pressure & temperature
C. High pressure and low temperature
D. High temperature and low pressure
Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic____________________?
Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic____________________?
A. Cracking
B. Polymerisation
C. Reforming
D. Isomerisation
‘Solvent naphtha’ used mostly as a solvent in paints and perfumery is produced by the _________________ of virgin naphtha into small boiling range cuts?
‘Solvent naphtha’ used mostly as a solvent in paints and perfumery is produced by the _________________ of virgin naphtha into small boiling range cuts?
A. Steam reforming
B. Distillation
C. Desulphurisation
D. None of these
Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its_________________?
Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its_________________?
A. Molecular weight
B. Aromatics content
C. Both A. & B.
D. Neither ‘a’ nor ‘b’
Octane number (unleaded) of gasoline produced by isomerisation of butane may be about __________________?
Octane number (unleaded) of gasoline produced by isomerisation of butane may be about __________________?
A. 45
B. 55
C. 70
D. 90
Molecular weight of crude petroleum may be around________________?
Molecular weight of crude petroleum may be around________________?
A. 50
B. 250
C. 1500
D. 5000
The characterisation factor of crude petroleum oil is around__________________?
The characterisation factor of crude petroleum oil is around__________________?
A. 3
B. 11
C. 22
D. 28
True vapour pressure of a petroleum fraction ________________ Reid vapour pressure?
True vapour pressure of a petroleum fraction ________________ Reid vapour pressure?
A. Is less than
B. Is more than
C. Is same as
D. May be either more or less than
A typical yield of diesel in straight run distillation of crude oil may be about ________________ percent?
A typical yield of diesel in straight run distillation of crude oil may be about ________________ percent?
A. 8
B. 18
C. 28
D. 35