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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 22
16.
Castability of aluminium is increased by the addition of __________ in it.
silicon
manganese
bismuth
lead
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Addition of __________ to steel can not impart it high strength at elevated temperature.
nickel
magnesium
silicon
manganese
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Hard magnetic materials have high
coercive force.
residual magnetic induction.
both 'a' & 'b'.
neither 'a' nor 'b'.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The difference in the properties of a substance in three states of matter depends upon the
binding energy of atoms.
difference in molecular shape.
difference in intermolecular forces.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Ignition of fuel in a diesel engine is by
spark
hot compressed air
fuel injection
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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