Out of the following, TLV of __________ is maximum (about 500 ppm).

Question: In the blast furnace, incorporation of water vapour in the blast gives the following effect.
[A].

Increases the reducing potential of the gas.

[B].

Increases the flame temperature.

[C].

No significant change occurs.

[D].

Increases the hydrogen content in the metal.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Mild steel has __________ crystal lattice structure.
[A].

face centred cubic (fcc)

[B].

body centred cubic (bcc)

[C].

orthorhombic

[D].

cubic

Answer: Option B

Explanation:

No answer description available for this question.