Chemical Engineering - Chemical Engineering Basics

1.
Fluorine is not a constituent of
freon
chloroform
teflon
fluorocarbons
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.
pulverised fuel
travelling grate stoker firing
circulating fluidised bed
fluidised bed
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
During solid state sintering of powders, the following mechanism can be active.
Evaporation and condensation.
Solid state diffusion processes.
Liquid formation in grain boundaries.
Creation of more dislocations.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.
768
1127
1359
1480
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.
80-120
200-300
600-800
1000-1100
Answer: Option
Explanation:
No answer description is available. Let's discuss.