⟩ Higher viscosity of lubricating oil usually signifies A. lower Reid vapour pressure. B. higher acid number. C. higher flash point and fire point. D. lower flash point and fire point.
Option C
Option C
In catalytic cracking, the A. gasoline obtained has a very low octane number. B. pressure & temperature is very high. C. gasoline obtained has very high aromatic content. D. gasoline obtained has very high amount of gum forming compounds.
Pour point of a petrofuel is A. multiple of 3°F. B. multiple of 5°F. C. 5°C below the temperature at which oil ceases to flow. D. none of these.
LPG stands for A. liquid petroleum gas B. liquified petrol gas C. liquid petrol gas D. liquefied petroleum gas
"Breathing loss" on storage of gasoline occurs due to the A. presence of unsaturated air. B. fluctuation of ambient temperature during day and night. C. both (a) and (b). D. neither (a) nor (b).
Which is an anticing compound? A. Amyl nitrate B. Alcohals C. Mercaptans D. Pyridine
The terminology used for the bottom most product from the vacuum crude distillation unit is A. residual crude B. residuum C. reduced crude D. petrolatum
Which of the following is the easiest to crack? A. Paraffins B. Olefins C. Naphthenes D. Aromatics
Flash point of a liquid petroleum fuel gives an idea about its A. volatility. B. explosion hazards characteristics. C. nature of boiling point diagram. D. all (a), (b) and (c)
Clay treatment of petroleum products A. decolorises & stabilises cracked gasoline. B. desulphurise straight run gasoline & kerosene. C. adsorb arsenic from feedstock to catalytic reforming. D. all (a), (b) & (c).
Waxy crudes are treated with chemical additives mainly to A. depress its pour point B. dissolve wax C. precipitate wax D. remove wax