Engineering Materials

A. magnesium alloys
B. titanium alloys
C. chromium alloys
D. magnetic steel alloys
E. none of the above

A. 63 to 67% nickel and 30% copper
B. 88% copper and 10% tin and rest zinc
C. alloy of tin, lead and cadmium
D. silver and chromium
E. malleable cast iron and silver

A. improvement of casting characteristics
B. improvement of corrosion resistance
C. one of the best known age and precipitation-hardening systems
D. improving machinability
E. none of the above

A. delta metal
B. monel metal
C. constantan
D. nichrome
E. silicon bronze

A. improvement of casting characteristics
B. improvement of corrosion resistance
C. one of the best known age and precipitation-hardening systems
D. improving machinability
E. none of the above

A. modulus of elasticity is fairly low
B. wear resistance is very good
C. fatigue strength is not high
D. creep strength limits its use to fairly low temperatures
E. corrosion resistance is good

A. 63 to 67% nickel and 30% copper
B. 88% copper, 10% tin and rest zinc
C. alloy of tin, lead and cadmium
D. iron scrap and zinc
E. none of the above

A. are used where ease in machining is the criterion
B. contain carbon in free form
C. require least cutting force
D. do not exist
E. can be cut freely even under adverse conditions

A. kind of stainless steel
B. none ferrous alloy
C. polymer
D. cutting tool material
E. nickel and iron alloy having high permeability

A. nichrome
B. invar
C. magnin
D. elinvar
E. peiminvar