Bulk density of pulverised coal may be about __________ kg/m3.

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: In continuous casting of liquid steel, the mould is made of
[A].

water cooled steel

[B].

water cooled copper.

[C].

refractory oxide.

[D].

silicon carbide.

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten.
[A].

Stellite

[B].

High speed steel

[C].

Cermet

[D].

Alnico

Answer: Option A

Explanation:

No answer description available for this question.

Question: Consideration of the creep is the most important in case of the
[A].

blades of gas turbine.

[B].

piston of an I. C. engine.

[C].

flywheel of steam engine.

[D].

cycle chain.

Answer: Option A

Explanation:

No answer description available for this question.