Chemical Engineering - Chemical Engineering Basics

1.
Addition of __________ to steel does not impart hardness.
nickel
copper
chromium
silicon
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
For a spontaneous natural process at constant temperature and pressure, the free energy of the system always
increases.
decreases.
remains constant.
increases to a maximum before decreasing.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
Mach
Froude
Reynolds
Euler
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.
copper
steel
aluminium
brass
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Wavelength of radiation emitted by a body depends on the __________ of its surface.
temperature
area
nature
all 'a', 'b' & 'c'
Answer: Option
Explanation:
No answer description is available. Let's discuss.