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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 10
16.
A freely floating object is stable, if its centre of buoyancy
coincides with its centre of gravity.
lies below its centre of gravity.
lies below its metacentre.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Which of the following materials does not form adherent oxide film on surface ?
Copper
Nickel
Aluminium
Gold & silver
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Cassiterite is an ore of
tin
lead
molybdenum
chromium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In sheet metal forming, stretcher strains occur in
duralumin sheets.
low carbon steel sheets.
austenitic stainless steel sheets .
Ni-base alloy sheets.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
For grinding of softer materials, the grinding wheel should have __________ grain size.
finer
coarser
medium
any type of
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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