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Engineering Materials

Engineering Materials
Cemented carbide tools are not found to be suitable for cutting

Aluminium
Cast iron
Steel
Brass

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Engineering Materials
The crystal structure of brass is

Orthorhombic crystalline structure
F.C.C.
H.C.P.
C.C.

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Engineering Materials
The machinability of steel is improved by adding

Nickel
Sulphur, lead and phosphorus
Nickel and chromium
Chromium

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Engineering Materials
Beryllium bronze contains

80% copper and 20% beryllium
60% copper and 40% beryllium
97.75% copper and 2.25% beryllium
99% copper and 1% beryllium

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Engineering Materials
Which of the following is not the correct method of increasing fatigue limit?

Nitriding of surface
Cold working
Surface decarburisation
Shot peening

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Engineering Materials
1841 high speed steel contains

Vanadium 18%, chromium 1% and tungsten 4%
Vanadium 4%, chromium 18% and tungsten 1%
Vanadium 1%, chromium 4% and tungsten 18%
None of these

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