_____________ base crude oil is also called asphaltic crude?
_____________ base crude oil is also called asphaltic crude?
A. Paraffinic
B. Naphthenic
C. Mixed
D. Aromatic
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Solvent used in duo-sol extraction for lube oil upgradation is a mixture of______________?
Solvent used in duo-sol extraction for lube oil upgradation is a mixture of______________?A. Propane & phenol-cresol mixture
B. Methyl ethyl ketone & glycol
C. Phenol & furfural
D. Propane & liquid sulphur dioxideWhich is an anticing compound ?
Which is an anticing compound ?A. Amyl nitrate
B. Alcohols
C. Mercaptans
D. PyridineTetraethyl lead is added to the petrol to increase its octane number, because its octane number is ________________?
Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is ________________?A. More than 100
B. Round about 100
C. Between 50 and 100
D. Less than 251 centistoke is equal to ______________ Redwood I seconds?
1 centistoke is equal to ______________ Redwood I seconds?A. 1
B. 4.08
C. 0.408
D. 40.8The reservoir rock containing petroleum has_________________?
The reservoir rock containing petroleum has_________________?A. Low porosity
B. High permeability
C. High porosity
D. Both B. and C.Crude topping column operates at ________________ pressure?
Crude topg column operates at ________________ pressure?A. Atmospheric
B. 10 atm
C. Vacuum
D. 3 atm