Petroleum Refinery Engineering MCQ Questions & Answers | Chemical Engineering Page-3 section-4

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21.
Visbreaking

A. Uses natural gas as feed

B. Is carried out at atmospheric pressure

C. Produces fuel oil of lower viscosity

D. Produces gasoline only

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22.
Smoke volatility index is equal to smoke point plus

A. 0.42 × (% distilled at 204°C)

B. 5 mm

C. 0.84 × (% distilled at 204°C)

D. 10 mm approximately

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23.
Antioxidants are added in petrol to

A. Impart colour to it, for easy identification

B. Minimise the gum formation

C. Prevent icing of the carburettor

D. Prevent the lead build up in engines

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24.
Solvent used for dewaxing of petroleum products are

A. Furfural

B. Methyl ethyl ketone (MEK)

C. Propane

D. Both B & C

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25.
Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.

A. 1

B. 50

C. 5000

D. 10000

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26.
A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.

A. 8

B. 18

C. 28

D. 35

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27.
A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.

A. 4

B. 10

C. 18

D. 26

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28.
Naphtha yield in straight run distillation of crude oil may be about __________ percent.

A. 2

B. 6

C. 12

D. 18

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29.
Which of the following processes in oil refinery does not employ 'cracking'?

A. Coking

B. Visbreaking

C. Pyrolysis

D. None of these

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30.
Most widely used solvent for dewaxing is

A. Methyl-ethyl-ketone (MEK)

B. Naphtha

C. Petroleum ether

D. Sodium plumbite

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Petroleum Refinery Engineering MCQ Questions & Answers | Chemical Engineering

21. Visbreaking

Answer & Solution

22. Smoke volatility index is equal to smoke point plus

Answer & Solution

23. Antioxidants are added in petrol to

Answer & Solution

24. Solvent used for dewaxing of petroleum products are

Answer & Solution

25. Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.

Answer & Solution

26. A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.

Answer & Solution

27. A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.

Answer & Solution

28. Naphtha yield in straight run distillation of crude oil may be about __________ percent.

Answer & Solution

29. Which of the following processes in oil refinery does not employ 'cracking'?

Answer & Solution

30. Most widely used solvent for dewaxing is

Answer & Solution

Read More Section(Petroleum Refinery Engineering)

21.
Visbreaking

22.
Smoke volatility index is equal to smoke point plus

23.
Antioxidants are added in petrol to

24.
Solvent used for dewaxing of petroleum products are

25.
Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.

26.
A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.

27.
A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.

28.
Naphtha yield in straight run distillation of crude oil may be about __________ percent.

29.
Which of the following processes in oil refinery does not employ 'cracking'?

30.
Most widely used solvent for dewaxing is