Hydrogen percentage (by weight) in crude petroleum may be about __________________?
Hydrogen percentage (by weight) in crude petroleum may be about __________________?
A. 5
B. 15
C. 25
D. 35
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Paraffin base crude oil as compared to asphalt base crude gives___________________?
Paraffin base crude oil as compared to asphalt base crude gives___________________?A. Higher yield of straight run gasoline
B. Higher octane number gasoline
C. Lower viscosity index lube oil
D. Poorer yield of lube oilAntioxidants are added in petrol to _____________________?
Antioxidants are added in petrol to _____________________?A. Impart colour to it, for easy identification
B. Minimise the gum formation
C. Prevent icing of the carburettor
D. Prevent the lead build up in enginesTrue 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 thanDuring electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________________ with increase in the amount of water?
During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________________ with increase in the amount of water?A. Decreases
B. Increases
C. Remains unchanged
D. Decreases linearlyLane and Garton classification of petroleum is based on its ____________________?
Lane and Garton classification of petroleum is based on its ____________________?A. Composition
B. Specific gravity
C. Optical properties
D. ViscosityIsomerisation converts the ___________________ tot-paraffins?
Isomerisation converts the ___________________ tot-paraffins?A. Paraffins
B. Olefins
C. Naphthenes
D. None of these