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Chemical Engineering - Materials and Construction

Exercise : Materials and Construction - Section 1
1.
The behaviour of visco-elastic material is time dependent. This behaviour is common in __________ materials.
non-crystalline solid
crystalline
rubberry
non-crystalline organic polymeric.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Coke oven regenerators are made of __________ bricks.
fire clay
silica
low thermal conductivity
high electrical conductivity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals) ?
Invar
Constantan
Chromel
Alumel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Shock resisting steels should possess high
hardness
toughness
tensile strength
wear resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
The purpose of nitriding the steel is to
harden its surface.
soften its surface.
improve its reliability.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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