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Engineering Materials

Engineering Materials
The hardness of steel increases if it contains

Austenite
Cementite
Pearlite
Martensite

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Engineering Materials
The percentage of carbon in low carbon steel is

0.05%
0.15%
0.3%
0.5%

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Engineering Materials
Which is false statement about case hardening? Case hardening is done by

Induction hardening
Nitriding
Cyaniding
Electroplating

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Engineering Materials
Ball bearings are, usually, made from

High carbon steel
Chrome steel
Medium carbon steel
Low carbon steel

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Engineering Materials
Admiralty gun metal contains

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

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Engineering Materials
Delta-iron occurs between the temperature ranges of

900°C to 1400°C
400°C to 600°C
600°C to 900°C
1400°C to 1530°C

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