Water hammer is caused in steam carrying pipelines, because of ______________________?

Question: Wrought iron is never shaped by
[A].

casting

[B].

cold working

[C].

forging

[D].

welding

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.

Question: A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its
[A].

aqueous tension.

[B].

saturated humidity.

[C].

vapor pressure.

[D].

absolute humidity.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Aluminium oxide (an abrasive) is used for grinding
[A].

ceramics

[B].

high speed steel

[C].

cemented carbide

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ of hard alloy and tool steel is done to make it easily machinable.
[A].

Case carburising

[B].

Tempering

[C].

Normalising

[D].

Annealing

Answer: Option B

Explanation:

No answer description available for this question.