Petroleum Refinery Engineering

A. Leads to corrosion
B. Increases lead susceptibility
C. Decreases gum formation
D. Helps during stabilisation

A. Lower Reid vapour pressure
B. Higher acid number
C. Higher flash point and fire point
D. Lower flash point and fire point

A. Diesel
B. Gasoline
C. Atmospheric gas oil
D. Vacuum gas oil

A. 0.42 × (% distilled at 204°C)
B. 5 mm
C. 0.84 × (% distilled at 204°C)
D. 10 mm approximately

A. Determined by using a test engine
B. Not related to aniline point
C. Equal to cetane number plus 3
D. All A., B. & C.

A. Silica-alumina
B. Silica gel
C. Vanadium pentoxide
D. Nickel

A. Abel apparatus
B. Pensky-Marten’s apparatus
C. Saybolt chromometer
D. None of these

A. CH4
B. C2H2
C. C2H4
D. C2H6

A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may
decompose
B. Lighter/low boiling products are prone to thermal decomposition
C. High purity products can be obtained thereby
D. None of these

A. Low boiling sulphur compounds
B. Added in LPG cylinders to detect gas leakage by its smell
C. Undesirable in petrol, as they reduce its octane number
D. All A., B. and C.