Road grade bitumen is produced from vacuum residue by its ____________________?

A. Gasoline
B. Lube oil
C. Petrolatum
D. Coke

A. Low porosity
B. High permeability
C. High porosity
D. Both B. and C.

A. α-methyl naphthalene
B. 2-2-4 tri methyl pentane
C. 1, 3 butadiene
D. Tetra methyl ethylene

A. Improve the octane number
B. Act as an antioxidant
C. Reduce its viscosity
D. Increase its pour point

A. Catalytically cracked gasoline
B. Straight run gasoline
C. Catalytically reformed gasoline
D. Polymer gasoline

A. 50
B. 250
C. 1500
D. 5000