_____________ iron is produced, when molten pig iron is chilled suddenly?

Question: Cast iron is having very high
[A].

proximity between its elastic limit and ultimate breaking strength.

[B].

ductility.

[C].

tensile strength.

[D].

all (a), (b) and (c).

Answer: Option A

Explanation:

No answer description available for this question.

Question: Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its
[A].

high strength to weight ratio.

[B].

low temperature strength properties.

[C].

its ability to be cast, rolled, forged & stamped.

[D].

high strength and corrosion & oxidation-resistance at elevated temperature.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Graphite is corroded by
[A].

sulphuric acid (10%)

[B].

sea water

[C].

hydrochloric acid

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Clock pendulums are usually made of __________ steel.
[A].

high speed

[B].

stainless

[C].

heat resisting

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.