Chemical Engineering - Petroleum Refinery Engineering

26. 

Catalyst used in the catalytic cracking is

A. silica-alumina
B. silica gel
C. vanadium pentoxide
D. nickel

Answer: Option A

Explanation:

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27. 

Specific gravity of a petroleum product gives an indication of its

A. degree of refinement.
B. hydrocarbon content type (aromatic or paraffinic).
C. ease of atomisation.
D. sulphur content.

Answer: Option B

Explanation:

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28. 

Pick out the wrong statement.

A. Aromatics have higher specific gravity than paraffins,
B. Gross calorific value (GCV) of petrofuels is equal to (12400 - 2100 ρ2) where, ρ is the specific gravity of the fuel at 15.5°C.
C. Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre).
D. Higher specific gravity of petrofuels means higher C/H ratio.

Answer: Option C

Explanation:

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29. 

The doctor's solution comprises of sodium plumbite in

A. alcohal
B. water
C. aqueous caustic soda
D. soda ash

Answer: Option C

Explanation:

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30. 

Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of

A. propane & butane
B. butane & ethane
C. methane & ethane
D. methane & carbon monoxide

Answer: Option A

Explanation:

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