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Engineering Materials

Engineering Materials
Nodular cast iron is produced by adding ________ to the molten cast iron.

Chromium
Nickel
Copper
Magnesium

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Engineering Materials
In which of the following cases, consideration of creep is important

Cycle chains
Gas turbine blades
Flywheel of steam engine
Cast iron pipes

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Engineering Materials
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

Babbitt metal
Nichrome
Phosphor bronze
Monel metal

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Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Constantan
Delta metal
Monel metal
Nichrome

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Engineering Materials
For a steel containing 0.8% carbon

There can be any number of critical points
There is only one critical point
There are two critical points
There is no critical point

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Engineering Materials
For the allotropic forms of iron, the points of arrest are

The points where no further change occurs
Constant for all metals
The points of discontinuity
The points where there is no further flow of metal

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