A. malleable iron
B. nodular iron
C. spheroidal iron
D. grey iron
E. none of the above
Related Mcqs:
- An important property of malleable cast iron in comparison to grey cast iron is the high___________________?
A. compressive strength
B. ductility
C. carbon content
D. hardness
E. surface finish - Which is false statement about annealing. Annealing is done to________________?
A. relieve stresses
B. harden steel slightly
C. improve machining characteristic
D. soften material
E. permit further cold working - The unique property of cast iron is its high ___________________?
A. malleability
B. ductility
C. surface finish
D. damping characteristics
E. hardness - In grey cast iron, carbon is present in the form of____________________?
A. cementite
B. free carbon
C. flakes
D. spheroids
E. nodular aggregates of graphite - White cast iron contains carbon in the form of__________________?
A. free carbon
B. graphite
C. cementite
D. white carbon
E. ferrite - An important property of high silicon (12 – 18%) cast iron is the high__________________?
A. tenacity
B. brittleness
C. plasticity
D. corrosion resistance
E. hardness - In mottled cast iron, carbon is available in__________________?
A. free form
B. combined form
C. nodular form
D. flat form
E. partly in free and partly in combined state - Cast iron has_________________?
A. high tensile strength
B. its elastic limit close to the ultimate breaking strength
C. high ductility
D. all of the above
E. none of the above - Cast iron is characterised by minimum of following %age of carbon_________________?
A. 0.2%
B. 0.8%
C. 1.3%
D. 2%
E. 6.3%. - Compressive strength of grey cast iron in tonnes/cm is of the order of___________________?
A. 3- 5
B. 5-7
C. 7-10
D. 10-15
E. 15-22
