Lead is poured into the joint between two pipes. These pipes may be made of____________________?

Question: Which of the following statement is true about brittle fracture?
[A].

High temperature and low strain rates favour brittle fracture

[B].

Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture

[C].

Brittle fracture is always preceded by noise

[D].

Cup and cone formation is characteristic for brittle materials

Answer: Option B

Explanation:

No answer description available for this question.

Question: The austenite is a solid solution of carbon or iron carbide in gamma-iron.
[A].

Correct

[B].

Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

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: Aluminium has low density and addition of silicon improves its fluidity and therefore, its castability.
[A].

Correct

[B].

Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Question: A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.