Chemical Engineering - Chemical Engineering Basics

1. 

Adhesives

A. can't be used in the form of pressure sensitive tapes.
B. can't join two dissimilar metals.
C. cure instantaneously after application on a surface.
D. none of these.

Answer: Option D

Explanation:

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2. 

In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is __________ °C.

A. 20
B. 60
C. 120
D.

Answer: Option D

Explanation:

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3. 

Normalising of a casting does not

A. induce stresses in it.
B. refine its grain structure.
C. reduce seggregation.
D. improve its mechanical properties.

Answer: Option A

Explanation:

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4. 

The swift cup test evaluates the following property of a sheet metal.

A. Stretchability
B. Drawability
C. Bendability
D. None of these

Answer: Option B

Explanation:

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5. 

__________ is the most important element, which controls the physical properties of steel.

A. Manganese
B. Silicon
C. Carbon
D. Vanadium

Answer: Option C

Explanation:

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