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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 16
26.
Mechanism/phenomenon involved in the improvement of fatigue strength of a material by shot peening is the
induction of residual compressive stress on the surface.
removal of stress concentration from the surface.
grain refinement.
surface polishing.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Springs are not made of
phospher bronze.
nickel steel.
monel.
carbon steel (c ≤ 0.5%).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Pick out the wrong statement.
In Parke's process, zinc is added to remove silver from lead.
In the Pidgeon process of producing magnesium, powdered ferro-silcon is used as the reducing agent.
Molten lead is used for shock cooling of the zinc vapours in the zinc blast furnace.
Pure copper electrodes are used as anode for electro-refinning of copper.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Monazite deposits constitute an important source for the following metal.
Thorium
Titanium
Molybdenum
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
α-rays are
negatively charged.
positively charged.
neutral.
same as X-rays.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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