- (A) Residual crude
- (B) Residuum
- (C) Reduced crude
- (D) Petrolatum
Chemical Engineering Mcqs
- (A) Can be separated out by distillation
- (B) Are not soluble in them
- (C) Crystallise out at low temperature
- (D) Decrease their viscosity
- (A) Olefins and aromatics
- (B) Lighter paraffins
- (C) Stabilised gasoline
- (D) Diesel
- (A) Cloud point
- (B) Pour point
- (C) Colour
- (D) Freezing point
- (A) 10 and 120
- (B) 1 and 200
- (C) 50 and 250
- (D) 10 and 300
- (A) Viscosity index
- (B) Volatility
- (C) Pour point
- (D) None of these
- (A) Naphthene
- (B) Olefin
- (C) Paraffin
- (D) Aromatics
- (A) Improve the octane number
- (B) Act as an antioxidant
- (C) Reduce its viscosity
- (D) Increase its pour point
- (A) Higher yield of straight run gasoline
- (B) Higher octane number gasoline
- (C) Lower viscosity index lube oil
- (D) Poorer yield of lube oil
- (A) Nature of boiling point diagram of the system
- (B) Amount of low boiling fraction present
- (C) Explosion hazards
- (D) All
