- (A) Stiffness
- (B) Lubricating properties (e.g. oilness)
- (C) Service temperature
- (D) Variation in viscosity with temperature
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- (A) Flash point
- (B) Preheating temperature corresponding to viscosity of 25 centistokes
- (C) Flame temperature
- (D) Fire point
- (A) Deoiling
- (B) Solvent refining
- (C) Clay treatment
- (D) Hydro-treatment
- (A) Is optically active
- (B) Constitutes mainly of olefins
- (C) Does not contain asphalt
- (D) Does not contain aromatics
- (A) Diesel
- (B) Petrol
- (C) Kerosene
- (D) Fuel oil
- (A) Octane number
- (B) Lead susceptibility
- (C) Gum forming tendency & thoroughness of refining
- (D) None of these
- (A) Catalytic cracking
- (B) Catalytic reforming
- (C) Hydrotreating
- (D) Alkylation
- (A) Paraffins
- (B) Olefins
- (C) Naphthenes
- (D) None of these
- (A) Pour point
- (B) Viscosity
- (C) Pressure drop on pumping
- (D) All
- (A) Naphthenic
- (B) Asphalt
- (C) Paraffin
- (D) Mixed
