Materials and Construction
Ceramic materials

Are poor electrical conductors due to lack of free electrons
Are exemplified by clay and mica
All of these
Never exhibit polymorphism

ANSWER DOWNLOAD EXAMIANS APP

Materials and Construction
Nickel as a material of construction

Is used as an alloying element for both ferrous & non-ferrous alloys
Has a body centred cubic (bcc) crystal lattice structure
Dimagnetic
Is paramagnetic below 415° C (its Curie temperature)

ANSWER DOWNLOAD EXAMIANS APP