1. surface tension
2. coefficient of viscosity
3. viscosity
4. osmosis
viscosity
1. kind of stainless steel
2. none ferrous alloy
3. polymer
4. nickel and iron alloy having high permeability
nickel and iron alloy having high permeability
1. 0.5% of phosphorous
2. 1% phosphorous
3. 2.5% phosphorous
4. none of the above
none of the above
1. are used where ease in machining is the criterion
2. contain carbon in free form
3. require least cutting force
4. do not exist
are used where ease in machining is the criterion
1. copper, zinc and iron
2. iron, nickel and copper
3. iron, lead and tin
4. iron, aluminum and magnesium
copper, zinc and iron
1. 63 to 67% nickel and 30% copper
2. 88% copper, 10% tin and rest zinc
3. alloy of tin, lead and cadmium
4. iron scrap and zinc
88\% copper, 10\% tin and rest zinc
1. white metal
2. solder admiralty
3. fusible metal
4. phosphor bronze
white metal
1. modulus of elasticity is fairly low
2. wear resistance is very good
3. fatigue strength is not high
4. creep strength limits its use to fairly low temperatures
wear resistance is very good
1. improvement of casting characteristics
2. improvement of corrosion resistance
3. one of the best known age and precipitation hardening systems
4. improving machinability
one of the best known age and precipitation hardening systems
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 corrosion resistance