A. Increase its smoke point
B. Reduce gum formation
C. Reduce the pour point
D. Increase its octane number
Related Mcqs:
- The amount of tetraethyl lead added to improve the octane number of motor gasoline is around ______________ c.c per gallon of petrol?
A. 3
B. 300
C. 3000
D. 1000 - Gasoline extracted from natural gas (by compression and cooling) is called the ___________ gasoline?
A. Polymer
B. Unleaded
C. Casing head
D. Straight run - Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about ________________ ppm?
A. 1
B. 50
C. 5000
D. 10000 - Which of the following categories of gasoline has the highest lead susceptibility ?
A. Straight run gasoline
B. Platinum reformed gasoline
C. Catalytical cracked gasoline
D. Polymer gasoline - Phenols are added in gasoline to____________________?
A. Improve the octane number
B. Act as an antioxidant
C. Reduce its viscosity
D. Increase its pour point - Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is ________________?
A. More than 100
B. Round about 100
C. Between 50 and 100
D. Less than 25 - Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the____________________?
A. Elimination of solvent drying facility
B. Higher nitration temperature
C. Lower solvent dilution ratio
D. All A., B. & C. - Ethyl mercaptan is a/an ___________________ compound?
A. Sulphur
B. Nitrogen
C. Oxygen
D. None of these - Straight run petrol as compared to methyl/ethyl alcohol has_________________?
A. Lower calorific value
B. Lower octane number
C. Higher specific gravity
D. Higher ignition temperature - Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic____________________?
A. Cracking
B. Polymerisation
C. Reforming
D. Isomerisation
