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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 14
21.
__________ is not used as a material of construction in thermocouples.
Alumel
Rhodium
Constantan
Duralumin
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Coarse grained steels have
low toughness
no tendency to distort
high density
very high toughness
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Steel balls are manufactured by cold heading. After cold forming, they are subjected to
tempering
normalising
stress-relieving
artificial ageing
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Free oxygen is removed from boiler feed water, because it
reduces heat transfer co-efficient.
is corrosive.
causes explosion.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Out of the following, the materials having maximum magnetic permeability is
silicon steel (Si = 4%)
cast iron
wrought iron
mild steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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