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Engineering Materials

Engineering Materials
Super conduction by metals is observed in the temperature range of

Below 10°K
Around 0°C
Around 100°C
Above 100°K

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Engineering Materials
The machinability of steel is improved by adding

Nickel
Nickel and chromium
Chromium
Sulphur, lead and phosphorus

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Engineering Materials
Quenching is not necessary when hardening is done by

Flame hardening
Case hardening
Nitriding
Any one of these

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

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

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Engineering Materials
White metal contains

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

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Engineering Materials
Acidic solution is one which has pH value

Less than 7
pH value has nothing to do with neutral solution
Equal to 7
Greater than 7

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MORE MCQ ON Engineering Materials

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