Petroleum and Petrochemical Technology Mid - I, September - 2014

1.Which is the most undesirable component in kerosene?
  • Aromatics
  • i-paraffins
  • n-paraffins
  • Naphthenes
Answer: A
2.Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.
  • Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics.
  • Smoking tendency of paraffins increases with decrease in its molecular weight.
  • Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond.
  • Smoking tendency of aromatics decreases with increase in its molecular weight.
Answer: B
3.Solvent used in duo-sol extraction for lube oil upgradation is a mixture of________
  • propane & phenol-cresol mixture.
  • methyl ethyl ketone & glycol
  • phenol & furfural.
  • propane & liquid sulphur dioxide
Answer: A
4._______ is not an important refinery process for upgrading the quality of lubricating oil.
  • Deoiling
  • Solvent refining
  • Clay treatment
  • Hydrotreatment
Answer: A
5.Which of the following is used as a catalyst in fluidized bed catalytic cracking?
  • Silica-magnesia
  • Silica-alumina
  • Bentonite clays
  • All (a), (b) and (c)
Answer: D
6.Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater.
  • electric immersion
  • pipestill
  • steam coil
  • none of these
Answer: B
7.Which of the following has the lowest viscosity (at a given temperature) of all?
  • Naphtha
  • Kerosene
  • Diesel
  • Lube oil
Answer: A
8.How long ago did humans first use natural gas as a fuel?
  • 100 years ago
  • 250 years ago
  • 1000 years ago
  • 2500 years ago
Answer: D
9.Glycol added to petrol acts as a/an __________ agent.
  • anti-knocking
  • anti-icing
  • anti-gum forming
  • dewaxing
Answer: B
10.The proper arrangement of the petroleum fractions in order of their boiling points is
  • lubricating oil > diesel > petrol > LPG
  • lubricating oil > petrol > diesel > LPG
  • petrol > lubricating oil > diesel > LPG
  • petrol > diesel > LPG > lubricating oil
Answer: A
11.The terminology used for the bottom most product from the vacuum crude distillation unit is______________
Answer: Residuum
12.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).
Answer: Half
13.Flash point of motor gasoline may be around __________ °C.
Answer: 45
14.Penetration test determines the __________ of the grease.
Answer: Stiffness
15.The first crude oil refinery of India is located at__________________
Answer: Digboi
16. Testing of the knocking characteristics of petro fuels is done in a __________ engine
Answer: CFR (Co-operative fuel research)
17.Tanks used for the storage of petroleum products (which are inflammable) should be painted with a __________ paint.
Answer: White
18.Crude oil is pumped by a ______________ pump.
Answer: Centrifugal
19.Casing head gasoline is the liquid______________
Answer: Butane
20.Pour point and freezing point is equal for_______________
Answer: Water