Practice Pakistan's most useful MCQs for competitive exams

______________ converts n-paraffins to i-paraffins ?

• (A)  Alkylation
• (B)  Polymerisation
• (C)  Isomerisation
• (D)  None of these

Answer

Submitted By :Ali Uppal

A petroleum well is called ‘dry’, if it contains ____________________?

• (A)  Very little oil
• (B)  No natural gas
• (C)  Only natural gas
• (D)  All

Answer

Submitted By :Ali Uppal

Solvent used in the deasphalting process is ______________________?

• (A)  Furfural
• (B)  Phenol
• (C)  Propane
• (D)  Hexane

Answer

Submitted By :Ali Uppal

Cetane number of high speed diesel must be ≥_________________?

• (A)  30
• (B)  45
• (C)  75
• (D)  95

Answer

Submitted By :Ali Uppal

Boiling range of motor gasoline is an indication of the ___________________?

• (A)  Case of starting
• (B)  Rate of acceleration
• (C)  Vapour locking tendency
• (D)  All

Answer

Submitted By :Ali Uppal

Furfural solvent extraction is used for upgrading (by dissolving aromatics) ?

• (A)  Naphtha
• (B)  Lubricating oils
• (C)  Wax
• (D)  Cracking feedstock

Answer

Submitted By :Ali Uppal

Which of the following has the highest octane number ?

• (A)  Aromatics
• (B)  i-paraffins
• (C)  Naphthenes
• (D)  Olefins

Answer

Submitted By :Ali Uppal

Alkylation_____________________?

• (A)  Causes olefins to combine with each other
• (B)  Causes olefins to combine with iso-paraffins
• (C)  Converts iso-paraffin into olefin
• (D)  Converts olefin into paraffin

Answer

Submitted By :Ali Uppal

Illuminating characteristics of kerosene is expressed by its_____________?

• (A)  Smoke point
• (B)  Aniline point
• (C)  Luminosity number
• (D)  Aromatic content

Answer

Submitted By :Ali Uppal

Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about ______________ kg/cm2?

• (A)  1.5
• (B)  3
• (C)  6
• (D)  12

Answer

Submitted By :Ali Uppal