Category: Materials of Construction Mcqs

A.easy to be painted
B.of better look
C.protected from rusting
D.harder

A.increases its strength
B.decreases its strength
C.increases its ductility
D.none of the above

A.Cl- ? Cl+ e-
B.Fe3+ + e- ? Fe2+
C.Cu ? Cu2+ + 2e-
D.Zn ? Zn2+ + 2e-

A.cast iron and pig iron
B.cast iron and steel
C.pig iron and steel
D.pig iron and wrought iron

A.it loses an electron
B.it gains an electron
C.it gains a proton
D.it loses a proton

A.lowers the melting point
B.raises the melting point
C.has no effect on melting point
D.makes iron malleable

A.increase the hardness
B.increase the brittleness
C.decrease the ductility
D.all of the above

A.0.1 to 1.50%
B.0.35 to 2.5%
C.2 to 4%
D.5 to 8%

A.vanadium
B.tungsten
C.silicon
D.phosphorus

A.White cast iron
B.Grey cast iron
C.Pig iron
D.Nodular cast iron