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Chemical Engineering - Materials and Construction

Exercise : Materials and Construction - Section 5
26.
Presence of high amount of silicon in cast iron
suppresses the decomposition of Fe3 C.
increases the formation of graphite.
increases the contraction of the metal.
reduces its fluidity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Rubber lined pumps can be used to pump
caustic soda
chlorinated brine
hypochlorous acid
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Titanium metal
exists in three allotropic forms.
can not be welded.
is used in oceanographic and space exploration applications.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Purity of electrical grade aluminium should be ≥ __________ percent.
95
99.5
85
90
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Maximum consumption of zinc is in
alloying
galvanising
utensil manufacture
electrical industry
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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