21. Which of the following categories of gasoline has the highest lead susceptibility?
22. The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to
23. Pyrolysis of kerosene or natural gasoline is done to produce mainly the
24. Which of the following is desirable in diesel and kerosene but is undersirable in gasoline?
25. Performance number of a liquid fuel is related to its
26. Breathing loss on storage of gasoline occurs due to the
27. Octane number of n-heptane is assumed to be
28. 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
29. Waxes present in petroleum products
30. Which of the following processes consumes hydrogen?
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