Q.1
In catalytic cracking, the
Q.2
Solvent used in the deasphalting process is
Q.3
Naphthenic acid is represented by
Q.4
Hydrocracking employs
Q.5
Pick out the correct statement.
Q.6
The conductivity of crude oil-water mixture depends on the
Q.7
Flash point of a liquid petroleum fuel gives an idea about its
Q.8
Crude petroleum oil is a __________ fuel.
Q.9
In hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen
Q.10
95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C.
Q.11
__________ is not an important refinery process for upgrading the quality of lubricating oil.
Q.12
Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm.
Q.13
Tanks used for the storage of petroleum products (which are inflammable) should be painted with a __________ paint.
Q.14
Solvent used in duo-sol extraction for lube oil upgradation is a mixture of
Q.15
Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about __________ kg/cm² .
Q.16
Sweetening of petroleum product means the removal of
Q.17
Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is
Q.18
Sulphur content in lighter and heavier petroleum products is generally determined respectively by
Q.19
LPG stands for
Q.20
__________ test is done to find out the softening point of bitumen.
Q.21
Pick out the wrong statement.
Q.22
Which is an anticing compound?
Q.23
A multigrade lubricating oil means an oil having high
Q.24
Reid vapour pressure of gasoline is the measure of its
Q.25
Diesel used in naval applications has a minimum cetane number of
Q.26
Which of the following has maximum hydrogen/carbon ratio (by weight)?
Q.27
Waxy crudes are treated with chemical additives mainly to
Q.28
Catalyst used in catalytic polymerisation which produces polymer gasoline is
Q.29
Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency?
Q.30
Which of the following has the lowest cetane number?
Q.31
Catalyst used in the catalytic polymerisation is
Q.32
Which parameter is used for the grading of paraffin waxes?
Q.33

Viscosity index of a lubricating oil

  • is the measure of its flash point.
  • is the measure of variation of viscosity with temperature.
  • should be low.
  • none of these.
Q.34

Tanks used for the storage of petroleum products (which are inflammable) should be painted with a __________ paint.

  • black
  • white
  • red
  • yellow
Q.35

Diesel used in naval applications has a minimum cetane number of

  • 25
  • 35
  • 45
  • 65
Q.36

Flash point of an oil gives an idea of the

  • nature of boiling point diagram of the system.
  • amount of low boiling fraction present.
  • explosion hazards.
  • all (a), (b) and (c).
Q.37

Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API) ?

  • Diesel
  • Gasoline
  • Atmospheric gas oil
  • Vacuum gas oil
Q.38

Solvent used in the deasphalting process is

  • furfurol
  • phenol
  • propane
  • hexane
Q.39

Solution used in Doctor's treatment for the removal of mercaptans is

  • sodium hydroxide
  • sodium plumbite
  • cupric chloride
  • potassium isobutyrate
Q.40

Cetane number of diesel used in trucks may be about

  • 50
  • 14
  • 35
  • 85
Q.41

Which of the following tests is not done for transformer oil ?

  • Flash point and acid value.
  • Aniline point.
  • Dielectric strength.
  • Copper strip corrosion test.
Q.42

Mercaptans are

  • low boiling sulphur compounds.
  • added in LPG cylinders to detect gas leakage by its smell.
  • undesirable in petrol, as they reduce its octane number.
  • all (a), (b) and (c)
Q.43

Furfural solvent extraction is used for upgrading (by dissolving aromatics)

  • naphtha
  • lubricating oils
  • wax
  • cracking feedstock
Q.44

In petroleum refining, the process used for conversion of hydrocarbons to aromatics is

  • catalytic cracking
  • catalytic reforming
  • hydrotreating
  • alkylation
Q.45

For gasoline, the flash point (<50°C) is determined by the

  • Abel apparatus.
  • Pensky-Marten's apparatus.
  • Saybolt chromometer.
  • none of these.
Q.46

Smoke point of a test sample of kerosene is found to bemm. On removal of __________ from it, the smoke point rises tomm.

  • n-paraffins
  • olefins
  • aromatics
  • none of these
Q.47

A good lubricant should have high

  • viscosity index
  • volatility
  • pour point
  • none of these
Q.48

Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater.

  • electric immersion
  • pipestill
  • steam coil
  • none of these
Q.49

Flash point of motor gasoline may be around __________ °C.

  • 10
  • 45
  • 100
  • 150
Q.50

__________ test is done to find out the softening point of bitumen.

  • Impact
  • Ball and ring
  • Flame
  • Viscosity
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