Questions and answers for exam Preparation

MCQs

Total Questions : 1622 | Page 158 of 163 pages

Question 1571. Straight run petrol as compared to methyl/ethyl alcohol has_________________?

Lower calorific value
Lower octane number
Higher specific gravity
Higher ignition temperature

Discuss Question

Answer: Option B. -> Lower octane number
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1572. Solution used in Doctor’s treatment for the removal of mercaptans is_________________?

Sodium hydroxide
Sodium plumbite
Cupric chloride
Potassium isobutyrate

Discuss Question

Answer: Option B. -> Sodium plumbite
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1573. Pour point and freezing point is equal for__________________?

Petrol
Diesel
Water
Crude petroleum

Discuss Question

Answer: Option C. -> Water
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1574. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?

Propane
Diethylene glycol
Aqueous solution (10% water) of diethylene glycol
Methyl ethyl ketone (MEK)

Discuss Question

Answer: Option C. -> Aqueous solution (10% water) of diethylene glycol
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1575. The characterisation factor of a crude oil is calculated as 12.5. It means that; it is________________?

Paraffinic
Naphthenic
Intermediate
None of these

Discuss Question

Answer: Option A. -> Paraffinic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1576. Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of ______________ kcal/kg?

600-750
250-350
1000-1500
2000-2500

Discuss Question

Answer: Option A. -> 600-750
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1577.
Aniline point test of an oil qualitatively indicates the ______________ content of an oil?

Paraffin
Olefin
Aromatic
Naphthene

Discuss Question

Answer: Option C. -> Aromatic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1578. For gasoline, the flash point (

Abel apparatus
Pensky-Marten’s apparatus
Saybolt chromometer
None of these

Discuss Question

Answer: Option D. -> None of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1579. Catalyst used in the catalytic cracking is_____________________?

Silica-alumina
Silica gel
Vanadium pentoxide
Nickel

Discuss Question

Answer: Option A. -> Silica-alumina
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1580. Crude oil is subjected to vacuum distillation in the last stage, because_________________?

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

Discuss Question

Answer: Option A. -> High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!