Petroleum Refinery Engineering

A. Reduce its cost
B. Narrow down its explosion limit
C. Assist in checking its leakage from cylinder
D. Increase its calorific value

A. Low octane number motor fuels
B. High octane number motor fuels
C. High octane number aviation fuels
D. Unleaded motor fuels

A. Silica-magnesia
B. Silica-alumina
C. Bentonite clays
D. All A., B. and C.

A. Characteristic property of diesel & lubricating oils
B. Measure of aromatic content of oil
C. Both A. and B.
D. Neither A. nor B.

A. 5
B. 10
C. 25
D. 100

A. n-paraffins
B. Olefins
C. Aromatics
D. None of these

A. Heavy fuel oil
B. Residuum
C. Straight run gasoline
D. Casing head gasoline

A. 1
B. 5
C. 15
D. 25

A. Resistance to knock
B. Ignition delay
C. Ignition temperature
D. Smoke point

A. Enhances the desulphurisation process
B. Minimises coke formation
C. Both A. and B.
D. Neither A. nor B.