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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 27
36.
Which of the following is not a principal alloying element for the structural steel?
Molybednum
Nickel
Manganese
Chromium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Metalloids
are good conductor of heat & electricity.
act as electron donors with metals & as electron acceptor with non-metals.
are not necessarily solids at room temperature.
are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Pick out the wrong statement
Processing of themosetting plastics is ideally done by injection moulding.
Processing of thermoplastics is ideally done by compression moulding.
Mass production of seamless pipes are done by electrical resistance welding (ERW).
Stretch forming is a process of cold drawing.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Lead is poured into the joints between two __________ pipes.
cast iron
steel
concrete
plastic
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
'Ice point' is designated on Farenhite temperature scale by
0°
32°
62°
212°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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