1. 1
2. 2
3. 4
4. 6
2
1. Nichrome
2. Invar
3. Magnin
4. Elinvar
Nichrome
1. Iron
2. Copper
3. Zinc
4. Nickel
Nickel
1. Improvement of casting characteristics
2. Improvement of corrosion resistance
3. One of the best known age and precipitation hardening systems
4. Improving machinability
Improvement of casting characteristics
1. 63 to 67% nickel &30% copper
2. 88% copper &10% tin and rest zinc
3. Alloy of tin, lead, cadmium
4. Silver and chromium
Alloy of tin, lead, cadmium
1. Lead base alloy
2. Tin base alloy
3. Both (a) and (b)
4. None of these
Both (a) and (b)
1. 94 % aluminum, 4% copper and 0.5% Mn, Mg si and fe
2. 92.5% aluminum, 4% copper, 2% nickel and 1.5% Mg
3. 10% aluminum and 90% copper
4. 90% magnesium and 9% aluminum with some copper
94 \% aluminum, 4\% copper and 0.5\% Mn, Mg si and fe
1. Ferrite and cementite
2. Cementite and gamma iron
3. Ferrite and austenite
4. Ferrite and iron graphite
Ferrite and cementite
1. Is used to reduce the retained sustention in hardened steel
2. Increases the ability of steel to work in sub zero atmospheres
3. Is used to suppress martensite transformation
4. Is performed after hardening operation to induce temper-brittleness
Is used to reduce the retained sustention in hardened steel
1. Ceramic
2. High speed steel
3. Diamond
4. Cemented carbide
Diamond