Constantant an alloy used in thermocouples is an alloy of __________________?

Question: A steel containing 16 to 18% chromium and about 0.12% carbon is called
[A].

ferritic stainless steel

[B].

austenitic stainless steel

[C].

martensitic stainless steel

[D].

nickel steel

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following property is desirable for materials used in tools and machines?
[A].

Elasticity

[B].

Plasticity

[C].

Ductility

[D].

Malleability

Answer: Option A

Explanation:

No answer description available for this question.

Question: For the pipe fitting like elbow, tee, union etc., which of the following is preferred?
[A].

Pig iron

[B].

Malleable iron

[C].

Spheroidal graphite cast iron

[D].

High carbon steel

Answer: Option B

Explanation:

No answer description available for this question.

Question: Duralumin contains
[A].

3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium

[B].

3.5 to 4.5% copper, 1.2 to 1.7% managanese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium

[C].

4 to 4.5% magnesium, 3 to 4% copper and rest aluminium

[D].

5 to 6% tin, 2 to 3% copper and rest aluminium

Answer: Option A

Explanation:

No answer description available for this question.

Question: Malleable cast iron is produced
[A].

by adding magnesium to molten cast iron

[B].

by quick cooling of molten cast iron

[C].

from white cast iron by annealing process

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.