A. 600 VPN
B. 1500 VPN
C. 1000 to 1100 VPN
D. 250 VPN
E. 2000 VPN
A. contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron
B. is also known as chilled cast iron am is obtained by cooling rapidly. It i: almost unmachinable
C. is produced by annealing process. I is soft, tough and easily machinec metal
D. is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroida form and is well dispersed throughout the material
E. none of the above is true
[B].
Answer: Option A
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A. cementite
B. free carbon
C. flakes
D. spheroids
E. nodular aggregates of graphite
A. providing corrosion resistance
B. improving machining properties
C. providing high strength at elevated temperatures
D. raising the elastic limit
E. improving the resilience and ductility