Chemical Engineering - Chemical Engineering Basics

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.