Category: Engineering Materials

A. aluminium, copper etc
B. nickel, molybdenum etc
C. nickel, copper, etc
D. all of the above
E. none of the above

A. improves wear resistance, cutting ability and toughness
B. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
C. improves cutting ability and reduces hardenability
D. gives ductility, toughness, tensile strength and anticorrosion properties
E. raises its melting point

A. 770°C
B. 910°C
C. 1440°C
D. 1539°C
E. none of the above

A. cold rolled steel
B. hot rolled steel
C. forged steel
D. cast steel
E. carbon-chrome steel

A. compressive strength
B. ductility
C. carbon content
D. hardness
E. surface finish

A. room temperature
B. above melting point
C. between 1400°C and 1539°C
D. between 910°C and 1400°C
E. none of the above

A. face-centred cubic lattice
B. body-centred cubic lattice
C. hexagonal close-packed lattice
D. all of the above
E. none of the above

A. hysteresis
B. creep
C. visco elasticity
D. Boeschinger effect
E. inelasticity

A. tin, antimony, copper
B. tin and copper
C. tin and lead
D. lead and zinc
E. lead and copper

A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B. 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg
C. 10% aluminium and 90% copper
D. 90% magnesium and 9% aluminium with some copper
E. 10% aluminium and 90% tin