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Chemical Engineering - Materials and Construction

Exercise : Materials and Construction - Section 1
36.
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.
1.5-2
3.5-4.5
7-9
12-14
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
White cast iron is not
malleable
whitish in color
brittle
strong and hard
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Galvanised iron is
harder
protected from rusting
alumina coated iron
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
German silver used for decorative purposes contains maximum percentage of
silver
copper
zinc
nickel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The metals occuring at the lower most position in the electromotive series
do not resist corrosion.
resist corrosion very strongly.
are very brittle.
are heat insulators.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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