The refractory lining of the bottom in a basic electric arc furnace is made of___________________?

Question: Brazing is the joining of metals
[A].

without melting the base metal.

[B].

with a non-ferrous filler.

[C].

both (a) & (b).

[D].

neither (a) nor (b).

Answer: Option C

Explanation:

No answer description available for this question.

Question: Material of construction of surveying metallic tapes is __________ which has low coefficient of expansion & enough strength.
[A].

constantan

[B].

invar

[C].

pewter metal

[D].

monel metal

Answer: Option B

Explanation:

No answer description available for this question.

Question: A form of stress corrosion failure termed as ‘season cracking’ is generally observed in
[A].

thermosetting polymers.

[B].

high carbon steels.

[C].

brasses.

[D].

borosilicate glasses.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Fatigue life is expected to increase by
[A].

increasing the size of the sample.

[B].

smooth polishing of the surface of the sample.

[C].

having compressive residual stresses at the surface.

[D].

having tensile residual stresses at the surface.

Answer: Option C

Explanation:

No answer description available for this question.

Question: In an isochoric process,
[A].

there is no transfer of mass and energy.

[B].

free expansion of an ideal gas occurs.

[C].

no mechanical work is done by the system.

[D].

all ‘a’, ‘b’ & ‘c’.

Answer: Option C

Explanation:

No answer description available for this question.