Super conduction in metals is observed at a temperature of ________________ °K?

Question: Most important property of steels for use in automobile bodies is the
[A].

formability

[B].

yield strength

[C].

toughness

[D].

resilience

Answer: Option A

Explanation:

No answer description available for this question.

Question: Constituents of stellite are
[A].

zinc, copper & nickel.

[B].

cobalt, chromium & tungsten.

[C].

zinc, aluminium & nickel.

[D].

nickel, cobalt & vanadium.

Answer: Option B

Explanation:

No answer description available for this question.

Question: A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place
[A].

the better insulation material should be put just next to pipe (i.e., inside).

[B].

the better insulating material should be put outside.

[C].

either of the insulating material could be put on either side.

[D].

steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe).

Answer: Option A

Explanation:

No answer description available for this question.

Question: Function of feed check valve in a boiler is to
[A].

facilitate circulation of high pressure feed water.

[B].

check the water level in the boiler drum.

[C].

prevent the back flow of water.

[D].

regulate the water flow to boiler.

Answer: Option C

Explanation:

No answer description available for this question.