301⟩ Road grade bitumen is produced from vacuum residue by its A. aeration B. pyrolysis C. hydrogenation D. steam reforming
Option D
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340 Petroleum Engineering Questions And Answers
302⟩ Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm. A. 1 B. 50 C. 5000 D. 10000
Option B
303⟩ Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c). A. one fourth B. one third C. half D. one eighth
Option C
304⟩ CnH2n is the general formula for A. olefins B. naphthenes C. both (a) and (b) D. neither (a) nor (b)
Option C
305⟩ Higher vapour pressure of gasoline indicates A. low flash point B. high breathing loss C. both (a) and (b) D. neither (a) nor (b)
Option D
306⟩ Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil? A. Modern theory B. Carbide theory C. Engler theory D. all (a), (b) and (c)
Option B
307⟩ Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octance is chemically known as A. α-methyl naphthalene. B. 2-2-4 tri methyl pentane. C. 1, 3 butadiene. D. tetra methyl ethylene.
Option B
308⟩ 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.
Option C
309⟩ 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.
Option C
310⟩ LPG stands for A. liquid petroleum gas B. liquified petrol gas C. liquid petrol gas D. liquefied petroleum gas
Option D
311⟩ "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).
Option B
312⟩ Which is an anticing compound? A. Amyl nitrate B. Alcohals C. Mercaptans D. Pyridine
Option B
313⟩ 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
Option B
314⟩ Which of the following is the easiest to crack? A. Paraffins B. Olefins C. Naphthenes D. Aromatics
Option A
315⟩ 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)
Option D
316⟩ 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).
Option D
317⟩ Waxy crudes are treated with chemical additives mainly to A. depress its pour point B. dissolve wax C. precipitate wax D. remove wax
Option A
318⟩ Water content in the crude oil as it comes out of oil well may be upto __________ percent. A. 2 B. 5 C. 10 D. 25
Option D
319⟩ Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has A. high pour point and low smoke point. B. low viscosity index. C. high self-ingnition temperature. D. all (a), (b) and.(c).
Option B
320⟩ __________ treatment is done for appreciable improvement in viscosity index of lubricating oil. A. Acid B. Solvent extraction C. Alkali D. Clay
Option B
