Clay treatment is used to remove ___________________ ?

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1 centistoke is equal to ______________ Redwood I seconds?

A. 1 B. 4.08 C. 0.408 D. 40.8...

Percentage of straight run gasoline in a typical crude oil may be around________________?

A. 6 B. 18 C. 38 D. 52...

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....

Pick out the wrong statement?

A. Aromatics have higher specific gravity than paraffins B. Gross calorific value (GCV) of petrofuels is equal to (12400 – 2100 ρ2) where, ρ is the specific gravity of the fuel at 15.5°C C. Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre) D. Higher specific … Pick out the wrong statement?Read More...

Which of the following has the highest gum forming tendency in gosoline ?

A. Paraffins B. Diolefins C. Aromatics D. Naphthenes...