Chemical Engineering - Chemical Engineering Basics

31. 

__________ remains constant during the adiabatic cooling of moist air.

A. Wet bulb temperature
B. Dry bulb temperature
C. Relative humidity
D. Specific humidity

Answer: Option A

Explanation:

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32. 

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

A. Collar
B. Flanged
C. Bell and Spigot
D. Expansion

Answer: Option B

Explanation:

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33. 

Out of the following, the alloy which has equal percentage of constituents, is

A. white metal
B. gun metal
C. duralumin
D. constanton

Answer: Option D

Explanation:

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34. 

Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition ?

A.
B.
C.
D.

Answer: Option C

Explanation:

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35. 

Steel is welded using the __________ flame.

A. carburising
B. neutral
C. oxidising
D. all (a), (b) & (c)

Answer: Option B

Explanation:

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