Age-hardening is related with______________?

Question: Cast iron is used in those parts which are subjected to shocks.
[A].

Correct

[B].

Incorrect

Answer: Option B

Explanation:

No answer description available for this question.

Question: The carbon in the pig iron varies from
[A].

0.1 to 0.5%

[B].

0.5 to 1%

[C].

1 to 5%

[D].

5 to 10%

Answer: Option C

Explanation:

No answer description available for this question.

Question: The brown smoke during the operation of a bessemer Converter indicates that the
[A].

air is burning out silicon and managanese

[B].

silicon and manganese has burnt and carbon has started oxidising

[C].

the converter must be titled to remove the contents of the converter

[D].

the brown smoke does not occur during the operation of a bessemer converter

Answer: Option A

Explanation:

No answer description available for this question.

Question: Manganese is added in low carbon steel to
[A].

make the steel tougher and harder

[B].

raise the yield point

[C].

make the steel ductile and of good bending qualities

[D].

all of the above

Answer: Option C

Explanation:

No answer description available for this question.