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Engineering Materials

Engineering Materials
The bond formed by transferring electrons from one atom to another is called

Ionic bond
None of these
Metallic bond
Covalent bond

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Engineering Materials
Maximum percentage of carbon in austenite is

0.008
0.00025
0.017
0.0026

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Engineering Materials
The lower critical point for all steels is

700°C
913°C
723°C
600°C

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Engineering Materials
Shock resistance of steel is increased by adding

Nickel and chromium
Chromium
Nickel
Sulphur, lead and phosphorus

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Engineering Materials
Admiralty gun metal contains

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

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Engineering Materials
The tensile strength of wrought iron is maximum

Perpendicular to lines of slag distribution
None of these
Along the lines of slag distribution
Uniform in all directions

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