Chemical Engineering Mcqs

Gum formation in stored gasoline is mainly due to the ____________________?

• (A)  Alkylation of unsaturated
• (B)  Presence of sulphur
• (C)  Oxidation & polymerisation of unsaturated
• (D)  Higher aromatic content

Answer

Submitted By :Ali Uppal

Smoke point of a good burning kerosene may be around _______________ mm?

• (A)  0-5
• (B)  20-25
• (C)  60-75
• (D)  100-120

Answer

Submitted By :Ali Uppal

Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the____________________?

• (A)  Elimination of solvent drying facility
• (B)  Higher nitration temperature
• (C)  Lower solvent dilution ratio
• (D)  All

Answer

Submitted By :Ali Uppal

Which of the following has the highest flash point of all ?

• (A)  Diesel
• (B)  Kerosene
• (C)  Petrol
• (D)  Furnace oil

Answer

Submitted By :Ali Uppal

Which one is used to determine the colour of petroleum products ?

• (A)  Colour comparator
• (B)  Saybolt chromometer
• (C)  Cleveland apparatus
• (D)  None of these

Answer

Submitted By :Ali Uppal

Tanks used for the storage of petroleum products (which are inflammable) should be painted with a ______________ paint?

• (A)  Black
• (B)  White
• (C)  Red
• (D)  Yellow

Answer

Submitted By :Ali Uppal

Butadiene is a/an_________________?

• (A)  Di-olefin
• (B)  Naphthene
• (C)  Aromatic
• (D)  Olefin

Answer

Submitted By :Ali Uppal

The main use of heavy gas oil produced by the vacuum distillation unit is as a_____________________?

• (A)  Blending component for kerosene
• (B)  Blending component for petrol
• (C)  Feedstock for fluid catalytic cracking unit
• (D)  None of these

Answer

Submitted By :Ali Uppal

The most widely used crude topping column in refineries is the ______________ column?

• (A)  Bubble-cap
• (B)  Packed bed
• (C)  Fluidised bed
• (D)  Perforated plate

Answer

Submitted By :Ali Uppal

Most commonly used crude heater before the fractionation tower in a refinery is the ______________ heater?

• (A)  Electric immersion
• (B)  Pipestill
• (C)  Steam coil
• (D)  None of these

Answer

Submitted By :Ali Uppal