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

Related Mcqs:

1. Presence of aromatics in __________________?

   A. Diesel increases its cetane number B. Kerosene increases its smoke point C. Petrol increases its octane number D. All A., B. and C....

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

   A. Lubricating oils B. LPG C. Diesel D. Kerosene...

3. Aromatics have the highest ________________ of all the hydrocarbons of same carbon atoms?

   A. Smoke point B. Octane number C. Cetane number D. Viscosity...

4. Aromatics are desired constituents of____________________?

   A. Lubricating oil B. Diesel C. Kerosene D. Petrol...

5. In petroleum refining, the process used for conversion of hydrocarbons to aromatics is________________?

   A. Catalytic cracking B. Catalytic reforming C. Hydrotreating D. Alkylation...

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

   A. Naphtha B. Lubricating oils C. Wax D. Cracking feedstock...

7. Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene ?

   A. Reforming B. Pyrolysis C. Alkylation D. Hydrocracking...

8. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?

   A. Propane B. Diethylene glycol C. Aqueous solution (10% water) of diethylene glycol D. Methyl ethyl ketone (MEK)...

9. Crude oil produced by Indian oil fields are predominantly _______________ in nature?

   A. Paraffinic B. Naphthenic C. Asphaltic D. Mixed base...

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

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