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Engineering Materials

Engineering Materials
Depth of hardness of steel is increased by addition of

Nickel
Chromium
Vanadium
Tungsten

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Engineering Materials
Which of the following elements does not impart hardness to steel?

Nickel
Copper
Silicon
Chromium

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Engineering Materials
Admiralty gun metal contains

Iron scrap and zinc
88% copper, 10% tin and rest zinc
Alloy of tin, lead and cadmium
63 to 67% nickel and 30% copper

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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
Less than
More than

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

Normalizing
Full annealing
Martempering
Hardening and cold working

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Engineering Materials
Basic constituents of Monel metal are

Nickel, molybdenum
Nickel, lead and tin
Zinc, tin, lead
Nickel, copper

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