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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 13
11.
Oxide layer formed on the non-ferrous metal surface after its annealing is
removed by acid pickling.
hammered into the surface.
removed with coarse emery cloth.
left as such to protect the surface.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Silicon percentage in silicon steel used for electrical equipments is about
1
4.0
8
14
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is
alumina
platinum
vanadium pentoxide
iron oxide
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Liquid nitrogen containers can be made from
ferritic stainless steel
HSLA steel
titanium
austenitic stainless steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Materials having __________ lattice structure are usually the most ductile.
body centred cubic (bcc)
hexagonal close packed (hcp)
face centred cubic (fcc)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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