Chemical Engineering - Chemical Engineering Basics

1. 

Toughness of a material is measured by the

A. Vicker's hardness test.
B. scratch test.
C. universal testing machine.
D. notched bar test.

Answer: Option C

Explanation:

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2. 

Pick out the wrong statement about nucleate boiling.

A. Bubble generation is by expansion of entrapped gas/vapour at small cavities in the surface.
B. Surface temperature is greater than the saturation temperature of the liquid.
C. Heat transfer from the surface of the liquid is less than that in film boiling.
D. The temperature is less than that of film boiling.

Answer: Option D

Explanation:

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3. 

L.D. (Linz-Donawitz) converter is used in the production of

A. copper
B. steel
C. zinc
D. aluminium

Answer: Option B

Explanation:

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4. 

Turning/machining of __________ usually does not require any cutting fluid.

A. cast iron
B. stainless steel
C. mild steel
D. copper

Answer: Option A

Explanation:

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5. 

Powder metallurgy processing can be used for making

A. dispersion strengthened copper rod.
B. self lubricating bearing and cemented carbide.
C. connecting rod.
D. piston.

Answer: Option B

Explanation:

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