Chemical Engineering - Chemical Engineering Basics

6. 

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

A. same
B. slightly less
C. slightly more
D. much more

Answer: Option C

Explanation:

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7. 

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

A. 5
B. 15
C. 30
D. 45

Answer: Option B

Explanation:

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8. 

Pick out the wrong statement.

A. Complete unity of command exists in a line organisation.
B. Line organisation is net suitable for expansion and growth of an industry.
C. In line and staff organisation, "line" executes and "staff directs.
D. none of these.

Answer: Option D

Explanation:

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9. 

__________ of austenite decreases the hardenability in steel.

A. Fine grains
B. Coarse grains
C. Homogeneity
D. Dissolved elements (except cobalt)

Answer: Option D

Explanation:

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10. 

A jig is used while __________ a hole.

A. boring
B. counter boring
C. drilling
D. enlarging

Answer: Option C

Explanation:

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