Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?

Question: __________ is not a heat treatment process.
[A].

Cyaniding

[B].

Pakerising

[C].

Austempering

[D].

Martempering

Answer: Option B

Explanation:

No answer description available for this question.

Question: Overheating of satellites during re-entry to earth is controlled by
[A].

thick insulation.

[B].

ceramic lining.

[C].

cooling by flow of air over the surface.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Direct conversion of thermal energy to electrical energy is facilitated by the
[A].

fuel cells.

[B].

photo voltaic cell.

[C].

magneto hydrodynamic generator.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: In which of the following reactions, application of vacuum will help ?
[A].

Number of gas molecules in the product side is more than that on the reactant side.

[B].

Number of gas molecules in the reactant side is more than that on the product side.

[C].

Number of gas molecules are the same on both the reactant & the product side.

[D].

None of the above.

Answer: Option D

Explanation:

No answer description available for this question.