41. A multigrade lubricating oil means an oil having high
42. Reid vapour pressure of gasoline is the measure of its
43. Which of the following has maximum hydrogen/carbon ratio (by weight)?
44. Waxy crudes are treated with chemical additives mainly to
45. Catalyst used in catalytic polymerisation which produces polymer gasoline is
46. Diesel used in naval applications has a minimum cetane number of
47. Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency?
48. Which of the following has the lowest cetane number?
49. Catalyst used in the catalytic polymerisation is
50. Which parameter is used for the grading of paraffin waxes?
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