Chemical Engineering - Chemical Engineering Basics

46.
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight
1.5
3
5
7
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
Basic open hearth furnace (BOF) is not used for producing __________ steel.
killed
rimming
high alloy
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Principal alloying element in Elinvar (used for making hair springs for watches) is
copper
aluminium
nickel
zinc
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
The value of y = cp/cv. at < 500°C for air & most common gases can be safely assumed to be
0.8
1
1.4
1.8
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
Tesla metre per ampere (T. m/A) is the unit for the measurement of
magnetic succeptibility.
magnetic moment.
permeability of free space.
flux density.
Answer: Option
Explanation:
No answer description is available. Let's discuss.