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Engineering Materials

Engineering Materials
The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is

Cobalt
Nickel
Chromium
Vanadium

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Engineering Materials
Neutral solution is one which has pH value

Less than 7
Equal to 7
Greater than 7
pH value has nothing to do with neutral solution

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Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Invar
Hastelloy
Silver metal
Duralumin

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Engineering Materials
A small percentage of boron is added to steel in order to

Reduce machinability
Increase hardenability
Increase wear resistance
Increase endurance strength

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Engineering Materials
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.

None of these
Equal to
More than
Less than

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Engineering Materials
An example of amorphous material is

Lead
Zinc
Silver
Glass

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MORE MCQ ON Engineering Materials

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