Engineering Materials - Interview Questions | Exam2Win

Take a timed mock test specifically for Engineering Materials.

121. In nodular iron, graphite is in the form of

A. cementite

B. free carbon

C. lakes

D. spheroids

E. nodular aggregates of graphite.

Explanation:

122. The percentage of carbon in pig iron varies from

A. 0.1 to 1.2%

B. 1.5 to 2.5%

C. 2.5 to 4%

D. 4 to 4.5%

E. 4.5 to 6.3%.

Explanation:

123. The unique property of cast iron is its high

A. malleability

B. ductility

C. surface finish

D. damping characteristics

E. hardness.

Explanation:

124. Sulfur in pig iron tends to make it

A. hard'

B. soft

C. ductile

D. tough

E. malleable.

Explanation:

125. Iron is

A. paramagnetic

B. ferromagnetic

C. ferroelectric

D. dielectric

E. none of the above.

Explanation: