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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 26
31.
Thermit welding is categorised as the __________ welding.
forge
fusion
resistance
arc
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
A gas having a negative Joule-Thompson co-efficient, when throttled, will
become hotter.
become cooler.
remain unchanged.
liquefy.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Annealing of metal does not
precede its wire drawing.
induce softness and removes stresses & dissolved gases.
refine the crystalline structure & produce a definite microstructure.
alter toughness, ductility and magnetic & electrical or other physical properties.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which of the following is a common constituent of both paint and oil varnish ?
Extender
Pigment
Thinner
Drying oil
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Lithium is a useful alloying addition to aluminium, because it
is cheap.
imparts solid solution strengthening.
lowers density and contributes to age hardening.
improves the corrosion resistance of aluminium.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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