The average boiling point of aviation turbine fuel is closest to that of__________________?

Related Mcqs:

1. Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has__________________?

   A. High pour point and low smoke point
   B. Low viscosity index
   C. High self-ignition temperature
   D. All A., B. and C.

2. The octane number of aviation gasoline may be __________________?

   A. 79
   B. 87
   C. 97
   D. > 100

3. Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?

   A. Thermal cracking
   B. Gum formation
   C. Coking
   D. Discoloration

4. ‘Solvent naphtha’ used mostly as a solvent in paints and perfumery is produced by the _________________ of virgin naphtha into small boiling range cuts?

   A. Steam reforming
   B. Distillation
   C. Desulphurisation
   D. None of these

5. True boiling point apparatus is used for the__________________?

   A. Determination of characterisation factor
   B. Evaluation of oil stocks
   C. Determination of true vapour pressure
   D. None of these

6. The proper arrangement of the petroleum fractions in order of their boiling points is __________________ ?

   A. Lubricating oil > diesel > petrol > LPG
   B. Lubricating oil > petrol > diesel > LPG
   C. Petrol > lubricating oil > diesel > LPG
   D. Petrol > diesel > LPG > lubricating oil

7. Boiling range of motor gasoline is an indication of the ___________________?

   A. Case of starting
   B. Rate of acceleration
   C. Vapour locking tendency
   D. All A., B. and C.

8. 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

9. Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is________________?

   A. 4
   B. 3
   C. 2
   D. 1

10. Fuel oil is subjected to visbreaking to reduce its_______________?

    A. Pour point
    B. Viscosity
    C. Pressure drop on pumping
    D. All A., B. and C.