German silver is an alloy of___________________?

Question: The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is
[A].

chromium

[B].

nickel

[C].

vanadium

[D].

cobalt

Answer: Option D

Explanation:

No answer description available for this question.

Question: In acidic bessemer process, the furnace is lined with
[A].

silica bricks

[B].

a mixture of tar and burnt dolomite bricks

[C].

either (a) or (b)

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: According to Indian standard specifications, SG 400/15 means
[A].

spheroidal graphite cast iron with B.H.N. 400 and minimum tensile strength 15 MPa

[B].

spheroidal graphite cast iron with minimum tensile strength 400 MPa and 15 percent elongation

[C].

spheroidal graphite cast iron with minimum compressive strength 400 MPa and 15 percent reduction in area

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Question: A material is said to be allotropic, if it has
[A].

fixed structure at all temperatures

[B].

atoms distributed in random pattern

[C].

different crystal structures at different temperatures

[D].

any one of the above

Answer: Option C

Explanation:

No answer description available for this question.