Engineering Materials

Welcome to your Engineering Materials

The transistor is made of

silver

gold

Copper

germanium

Pearlite is a combination of

ferrite and cementite

cementite and gamma iron

ferrite and austenite

ferrite and iron graphite

Following elements have face-centred cubic structure

a iron (below 910°C and between 1400 to 1539°C), W

gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt

Mg, Zn, Ti, Zr, Br, Cd

all of the above

Acidic solution is one which has pH value

equal to 7

greater than 7

less than 7

pH value has no relevance for a solution to be decided acidic

Lead is poured into the joint between two pipes. These pipes may be made of

cast iron

asbestos cement

mild steel

vitrified clay

Austenite is a combination of

ferrite and austenite

ferrite and cementite

cementite and gamma iron

pearlite and ferrite