Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

Question: Eutectoid composition of carbon steel at room temperature is
[A].

cementite

[B].

pearlite

[C].

martensite

[D].

ferrite

Answer: Option B

Explanation:

No answer description available for this question.

Question: Cemented carbide tools are not suitable for cutting
[A].

aluminium

[B].

brass

[C].

cast iron

[D].

steel

Answer: Option A

Explanation:

No answer description available for this question.

Question: Electrometallurgical methods of metal extraction is normally used for those metals
[A].

whose oxide/ore is not reduced by carbon.

[B].

which fall in the category of alkali & alkaline earth metals.

[C].

which stands higher in the electrochemical series of the metal.

[D].

all (a), (b) & (c).

Answer: Option D

Explanation:

No answer description available for this question.