Chemical and Petroleum Engineering MCQ - Set 02 - ObjectiveBooks

Chemical and Petroleum Engineering MCQ - Set 02

Practice Test: Question Set - 02


1. 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)

2. Hydrogen percentage (by weight) in crude petroleum may be about
    (A) 5
    (B) 15
    (C) 25
    (D) 35

3. Which of the following has the lowest cetane number?
    (A) Aromatics
    (B) i-paraffins
    (C) Naphthene
    (D) Olefins

4. Catalyst used in catalytic polymerization which produces polymer gasoline is
    (A) H2SO4
    (B) H3PO4
    (C) Both (a) and (b)
    (D) AlCl3

5. Liquefied Petroleum Gas (LPG) is mainly a mixture of
    (A) Propane & butane
    (B) Methane & ethane
    (C) High boiling olefins
    (D) High boiling naphthenes

6. 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)

7. The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mm Hg.
    (A) 1.2
    (B) 12
    (C) 120
    (D) 700

8. Flash point of an oil is determined by the
    (A) Pensky Martens apparatus
    (B) Ramsbottom apparatus
    (C) Saybolt viscometer
    (D) Conradson apparatus

9. Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).
    (A) 5-10
    (B) 30-80
    (C) 150-250
    (D) 350-400

10. 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

11. Which of the following is not an important property of fuel oil/furnace oil?
    (A) Sulphur content
    (B) Viscosity
    (C) Aniline point
    (D) Flash point

12. Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to
    (A) Increase its smoke point
    (B) Improve its oxidation stability
    (C) Decrease the breathing loss
    (D) None of these

13. High aniline point of a petrofuel (say diesel) indicates that
    (A) It is highly aromatic in nature
    (B) It is highly paraffinic in nature
    (C) It has a very low diesel index
    (D) Its ignition quality is very poor

14. The main aim of cracking is to produce
    (A) Gasoline
    (B) Lube oil
    (C) Petrolatum
    (D) Coke

15. The most important property for a jet fuel is its
    (A) Viscosity
    (B) Freezing point
    (C) Calorific value
    (D) Flash point

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