Chemical Engineering - Chemical Engineering Basics

26. 

The burnout heat flux in the nucleate boiling regime is not a function of the

A. liquid density.
B. vapour density.
C. temperature difference.
D. heat of evaporation.

Answer: Option B

Explanation:

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27. 

The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres

A. 25
B. 35
C. 55
D. 75

Answer: Option C

Explanation:

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28. 

The cathode in an electrochemical cell always carries

A. negative charge.
B. positive charge.
C. zero charge.
D. positive or negative charge depending upon the nature of the cell.

Answer: Option A

Explanation:

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29. 

An oxidation process is accompanied with decrease in the

A. number of electrons.
B. oxidation number.
C. number of ions.
D. all (a), (b) & (c).

Answer: Option A

Explanation:

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30. 

Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?

A. Galvanising
B. Tinning
C. Sheardising
D. none of these

Answer: Option C

Explanation:

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