Chemical Engineering - Chemical Engineering Basics

1. 

With increase in carbon percentage in steel, its

A. yield stress decreases.
B. elongation percent increases.
C. tensile strength increases.
D. impact strength increases.

Answer: Option C

Explanation:

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2. 

Percentage of gaunge is maximum in the ore of

A. iron
B. gold
C. zinc
D. copper

Answer: Option B

Explanation:

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3. 

The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?

A. Cassiterite
B. Sphalerite
C. Chalcopyrite
D. Calcite

Answer: Option D

Explanation:

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4. 

Pick out the wrong statement.

A. Dry bulb temperature, wet bulb temperature & dew point are the same in case of saturated air.
B. Dew point is reached by cooling the humid air at constant moisture content.
C. Heating of humid air is done for its dehumidification.
D. none of these.

Answer: Option C

Explanation:

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5. 

The most commonly used material for sewers for carrying sewage in the normal situation is

A. asbestos cement
B. stainiess steel
C. stoneware
D. cast iron

Answer: Option C

Explanation:

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