Engineering Materials

A. sulphur, lead, phosphorous
B. silicon, aluminium, titanium
C. vanadium, aluminium
D. chromium, nickel
E. lubricants

A. nickel
B. chromium
C. tungsten
D. vanadium
E. ell of the above

A. flywheel of steam engine
B. cast iron pipes”
C. cycle chains
D. gas turbine blades
E. piston I.C. engine

A. 0.025%
B. 0.26%
C. 0.8%
D. 1.25%
E. 1.7%.

A. amount of carbon it contains
B. the shape and distribution of the car-bides in iron
C. method of fabrication
D. contents of alloying elements
E. the quality of ore from which it is made

A. malleable iron
B. nodular iron
C. spheroidal iron
D. grey iron
E. none of the above

A. 80% or more iron
B. 50% or more iron
C. alloying elements like chromium, tungsten nickel and copper
D. elements like phosphorus, sulphur and silicon in varying quantities
E. high quantities of sulphur

A. tenacity
B. brittleness
C. plasticity
D. corrosion resistance
E. hardness

A. free carbon
B. graphite
C. cementite
D. white carbon
E. ferrite

A. no graphite
B. a very high percentage of graphite
C. a low percentage of graphite
D. graphite as its basic constituent of composition
E. none of the above is true