61⟩ Flash point of diesel/kerosene (>50°C) is determined by the A. Abel apparatus B. Pensky-Martens apparatus C. Saybolt chromometer D. none of these
Option A
Petroleum Engineering
Home Engineering Petroleum Engineering
“Petroleum Engineering frequently Asked Questions by expert members with experience in Petroleum Engineering. These questions and answers will help you strengthen your technical skills, prepare for the new job test and quickly revise the concepts”
340 Petroleum Engineering Questions And Answers
62⟩ Aromatics are desired constituents of A. lubricating oil B. diesel C. kerosene D. petrol
Option D
63⟩ Octane number (unleaded) of gasoline produced by isomerisation of butane may be about A. 45 B. 55 C. 70 D. 90
Option C
64⟩ In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction A. heavy distillates B. intermediate distillates C. light ends D. residues
Option A
65⟩ Crude topping column operates at __________ pressure. A. atmospheric B. 10 atm C. vacuum D. 3 atm.
Option A
66⟩ Pick out the correct statement pertaining to catalytic cracking. A. With increase in the reactor pressure, octane number of gasoline decreases. B. With increase in the reactor temperature, gasoline yield decreases for a given conversion. C. Percentage conversion increases with increase in the catalyst to oil ratio. D. all (a), (b) and (c)
Option D
67⟩ Feedstock for polymerisation is A. naphtha. B. cracked gases rich in C2 & C4 olefins. C. low boiling aromatics. D. none of these.
Option B
68⟩ Smoke point of a good burning kerosene may be around __________ mm. A. 0-5 B. 20-25 C. 60-75 D. 100-120
Option B
69⟩ Quinoline is a/an __________ compound. A. sulphur B. nitrogen C. oxygen D. none of these
Option B
70⟩ Which of the following is a naphthene? A. Butene B. Butadiene C. Cyclohexane D. Acetylene
Option C
71⟩ Which of the following processes is used for the production of petroleum coke? A. Stabilisation B. Visbreaking C. Cracking D. Reforming
Option C
72⟩ With increase in the number of carbon and hydrogen atoms in hydrocarbon molecules, the density of petroleum products A. decreases B. increases C. remains same D. unpredictable from the data
Option B
73⟩ Visbreaking A. uses natural gas as feed B. is carried out at atmospheric pressure C. produces fuel oil of lower viscosity D. produces gasoline only
Option C
74⟩ Hydrocracking employs A. high pressure & temperature. B. low pressure & temperature. C. high pressure and low temperature. D. high temperature and low pressure.
Option A
75⟩ Cetane number of alpha methyl naphthalene is assumed to be A. 0 B. 100 C. 50 D. ∞
Option A
76⟩ The general formula of naphthenes is A. CnH2n + 2 B. CnH2n-6 (where, n ≥ 6) C. CnHn-4 D. same as that for olefins i.e. CnH2n
Option B
77⟩ The characterisation factor of crude petroleum oil is around A. 3 B. 11 C. 22 D. 28
Option B
78⟩ Sour crude means the __________ bearing crude. A. asphalt B. sulphur compounds C. wax D. nitrogen compounds
Option B
79⟩ Which of the following has the highest flash point of all? A. Diesel B. Kerosene C. Petrol D. Furnace oil
Option D
80⟩ The order of preference for feedstock to a catalytic reformer is A. catalytic naphtha - coking naphtha - virgin naphtha. B. coking naphtha - virgin naphtha - catalytic naphtha. C. virgin naphtha - catalytic naphtha - coking naphtha. D. virgin naphtha - coking naphtha - catalytic naphtha.
Option B
