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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 9
1.
Coating provided on the electrodes used in the arc welding is not expected to
add alloying elements.
prevent electrode from contamination.
stabilise the arc.
provide protective atmosphere to weld.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Desalination of water
makes it potable.
makes it non-potable.
means distillation of water.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Viscoelastic behaviour is observed in __________ materials.
non-crystalline organic polymeric
ceramic
all crystalline
all amorphous
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation
pressure falls below the vapour pressure
pressure becomes very high
temperature becomes low
all 'a', 'b' & 'c'
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Which of the following materials has the poorest electrical conductivity ?
Carbon
Aluminium
Silver
Stainless steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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