Hardness of upper bainite (acicular structure) is about___________________?

Question: An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and
[A].

chromium

[B].

silicon

[C].

manganese

[D].

magnesium

Answer: Option C

Explanation:

No answer description available for this question.

Question: In the middle part of the blast furnace (zone of absorption), the temperature is
[A].

400° to 700°C

[B].

800°C to 1000°C

[C].

1200°C to 1300°C

[D].

1500°C to 1700°C

Answer: Option B

Explanation:

No answer description available for this question.

Question: Face centred cubic space lattice is found in gamma-iron, aluminium, copper, lead, silver and nickel.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.