The alloy used for making electrical resistances and heating elements is____________________?

Question: Body centred cubic space lattice is found in
[A].

zinc, magnesinm, cobalt, cadmium, antimony and bismuth

[B].

gamma-iron, aluminium, copper, lead, silver and nickel

[C].

alpha-iron, tungsten, chromium and molybdenum

[D].

none of the above

Answer: Option C

Explanation:

No answer description available for this question.

Question: Which of the following statement is incorrect about duralumin?
[A].

It is prone to age hardening

[B].

It can be forged

[C].

It has good machining properties

[D].

It is lighter than pure aluminium

Answer: Option D

Explanation:

No answer description available for this question.

Question: In iron, the presence of carbon in free form is called graphite.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.