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Engineering Materials

Engineering Materials
The hardness of steel increases if it contains

Pearlite
Cementite
Austenite
Martensite

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Engineering Materials
Tungsten in high speed steel provides

Toughness
Sharp cutting edge
Hot hardness
Wear resistance

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Engineering Materials
The hardness and tensile strength in austenitic stainless steel can be increased by

Martempering
Hardening and cold working
Normalizing
Full annealing

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Engineering Materials
Which is false statement about normalizing? Normalizing is done to

Refine grain structure
Reduce segregation in casting
Induce stresses
Improve mechanical properties

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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.

Equal to
None of these
More than
Less than

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Engineering Materials
The main alloying elements high speed steel in order of increasing proportion are

Chromium, titanium, vanadium
Tungsten, titanium, vanadium
Tungsten, chromium, titanium
Vanadium, chromium, tungsten

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