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Chemical Engineering - Materials and Construction

Exercise : Materials and Construction - Section 5
16.
Thermoplastic resins are those polymers, which
has decreased plasticity at increasing temperature.
can not be moulded.
easily deform under pressure at high temperature.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The temperature at which new grains are formed in the metal is called the __________ temperature.
eutectic
recrystallisation
upper critical
lower critical
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Molten phthalic anhydride is stored in a/an __________ vessel.
aluminium
nickel clad steel
lead lined steel
glass lined steel.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Fatigue failure of a material results from __________ stress.
tensile
compressive
fluctuating
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Fermenter used in the production of pen-cillin by deep fermentation proces is a __________ lined steel vessel
rubber
monel
glass
nickel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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