Chemical Engineering Mcqs

Naphtha yield in straight run distillation of crude oil may be about _______________ percent?

• (A)  2
• (B)  6
• (C)  12
• (D)  18

Answer

Submitted By :Ali Uppal

Older crude petroleum __________________?

• (A)  Is light and better
• (B)  Gives more distillates
• (C)  Gives less tar
• (D)  All

Answer

Submitted By :Ali Uppal

In sweetening process, solutizer agent used with caustic alkali is_______________?

• (A)  Potassium isobutyrate
• (B)  Sodium plumbite
• (C)  Methanol
• (D)  Phenol

Answer

Submitted By :Ali Uppal

Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is________________?

• (A)  4
• (B)  3
• (C)  2
• (D)  1

Answer

Submitted By :Ali Uppal

Which of the following tests is not done for transformer oil ?

• (A)  Flash point and acid value
• (B)  Aniline point
• (C)  Dielectric strength
• (D)  Copper strip corrosion test

Answer

Submitted By :Ali Uppal

Petrolatum is__________________?

• (A)  Same as petroleum ether
• (B)  Petroleum coke
• (C)  A mixture of microcrystalline wax in viscous hydrocarbon liquids
• (D)  None of these

Answer

Submitted By :Ali Uppal

Extractor temperature is maintained at -20°C in Edeleanu process to reduce the ______________ of kerosene?

• (A)  Smoke point
• (B)  Paraffins
• (C)  Aromatics
• (D)  Naphthenes

Answer

Submitted By :Ali Uppal

Most widely used solvent for dewaxing is__________________?

• (A)  Methyl-ethyl-ketone (MEK)
• (B)  Naphtha
• (C)  Petroleum ether
• (D)  Sodium plumbite

Answer

Submitted By :Ali Uppal

Which of the following is not a sulphur compound present in petroleum ?

• (A)  Thiophenes
• (B)  Mercaptans
• (C)  Sulphones
• (D)  Pyrroles

Answer

Submitted By :Ali Uppal

Which of the following processes consumes hydrogen ?

• (A)  Fluid catalytic cracking
• (B)  Visbreaking
• (C)  Propane deasphalting
• (D)  None of these

Answer

Submitted By :Ali Uppal