Chemical Engineering - Chemical Engineering Basics

31. 

Boiling point of water gets lowered at high altitudes (e.g., hills), because

A. temperature is low.
B. atmospheric pressure is low.
C. atmospheric pressure is high.
D. none of these.

Answer: Option B

Explanation:

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32. 

With increase in temperature, the electrical conductivity of semiconductors

A. increases.
B. decreases.
C. remain constant.
D. either (a) or (b), depends on the type of semi-conductor.

Answer: Option A

Explanation:

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33. 

Which of the, following is not associated with the functioning of a petrol engine ?

A. Compression ignition system
B. Spark plug
C. Carburettor
D. Otto cycle

Answer: Option A

Explanation:

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34. 

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

A. 7
B. 10
C. 12
D. 17

Answer: Option A

Explanation:

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35. 

In an eutectic system, two elements are completely

A. soluble in solid state.
B. insoluble in liquid state.
C. insoluble in both solid & liquid state.
D. soluble in liquid state.

Answer: Option D

Explanation:

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