Petroleum Refining and Petrochemicals Mid - I, September - 2014

1.Which of the following is desirable in petrol but undesirable in kerosene
  • Paraffins
  • Aromatics
  • Mercaptans
  • Naphthenic Acid
Answer: B
2.Which of the following has the maximum API Gravity of all?
  • Diesel
  • Kerosene
  • Petrol
  • Furnace Oil
Answer: C
3.Aniline point of the diesel is a measure of its ______ content
  • Aromatic
  • Paraffin
  • Olefin
  • Naphthene
Answer: A
4.Molecular weight of crude petroleum may be around
  • 50
  • 250
  • 1500
  • 5000
Answer: B
5.Carbon percentage (by weight) in crude petroleum may be about
  • 65
  • 75
  • 85
  • 95
Answer: C
6.Thermo catalytic cracking process is a ______________ process
  • fixed bed
  • moving bed
  • fluidized bed
  • non-catalytic
Answer: D
7.Visbreaking
  • uses natural gas as feed
  • is carried out at atmospheric pressure
  • Produces fuel oil of lower viscosity
  • Produces gasoline only
Answer: C
8.Cetane number of high speed diesel must be >
  • 30
  • 45
  • 75
  • 95
Answer: B
9.The first crude oil refinery of India is located at
  • Cochin
  • Digboi
  • Chennai
  • Mumbai
Answer: B
10.A good lubricant should have high
  • Viscosity index
  • volatility
  • pour point
  • none of these
Answer: A
11.Catalyst used in the catalytic cracking is ____________________.
Answer: Silica-alumina
12.The main aim of cracking is to produce ____________________.
Answer: Gasoline
13.Octane number of n-heptane is assumed to be ____________________.
Answer: 0
14.Clay treatment is used to remove ____________________.
Answer: Wax from lube oil
15.____________________ gasoline is the liquid gasoline separated from wet natural gas by compression.
Answer: Casing head
16.Paraffins are desirable in lubricating oil, as it has got high viscosity ____________________.
Answer: Index
17.With increase in the molecular weight of aromatic present in kerosene, its smoking tendency ____________________.
Answer: Decreases
18.The most suitable solvent for deasphalting vacuum residue is ____________________.
Answer: Propane
19.Hydrogen percentage (by weight) in crude petroleum may be about ____________________.
Answer: 15
20.A petroleum well is called ‘dry’, if it contains ____________________.
Answer: Only natural gas