Engineering Materials

A. paramagnetic
B. ferromagnetic
C. ferroelectric
D. dielectric
E. none of the above

A. hard’
B. soft
C. ductile
D. tough
E. malleable

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. cementite
B. free carbon
C. flakes
D. spheroids
E. nodular aggregates of graphite

A. cementite
B. free carbon
C. flakes
D. spheroids
E. nodular aggregates of graphite

A. malleability
B. ductility
C. surface finish
D. damping characteristics
E. hardness

A. 0.5 to 1%
B. 1 – 2%
C. 2.5 to 4.5%
D. 5 – 7%
E. 7-9%.

A. the points where no further change oc-curs
B. constant for all metals
C. the points where there is no further flow of metal
D. the points of discontinuity
E. the points where major changes take place

A. body centred cubic
B. face centred cubic
C. hexagonal close packed
D. cubic structure
E. orthorhombic crystal

A. molecular change
B. physical change
C. allotropic change
D. solidus change
E. atomic change