Chemical Engineering - Chemical Engineering Basics

31. 

Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

A. enthalpy
B. relative humidity
C. wet bulb temperature
D. dew point temperature

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

32. 

Which of the following metals can not be hot worked at room temperature ?

A. Zinc
B. Nickel
C. Lead
D. Tin

Answer: Option B

Explanation:

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33. 

Primary designation of steel is based on its

A. hardness & tensile strength.
B. carbon content.
C. iron content.
D. alloying elements content.

Answer: Option D

Explanation:

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34. 

Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.

A. wrought
B. tool
C. alloy
D. plain carbon

Answer: Option D

Explanation:

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35. 

Superheating of steam is done at constant

A. enthalpy
B. entropy
C. pressure
D. volume

Answer: Option C

Explanation:

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