Malleable cast iron _________________?

Related Mcqs:

1. 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

2. In malleable iron, carbon is present in the form of___________________?

   A. cementite
   B. free carbon
   C. flakes
   D. spheroids
   E. nodular aggregates of graphite

3. The unique property of cast iron is its high ___________________?

   A. malleability
   B. ductility
   C. surface finish
   D. damping characteristics
   E. hardness

4. Chilled cast iron has____________________?

   A. no graphite
   B. a very high percentage of graphite
   C. a low percentage of graphite
   D. graphite as its basic constituent of composition
   E. none of the above is true

5. White cast iron contains carbon in the form of__________________?

   A. free carbon
   B. graphite
   C. cementite
   D. white carbon
   E. ferrite

6. An important property of high silicon (12 – 18%) cast iron is the high__________________?

   A. tenacity
   B. brittleness
   C. plasticity
   D. corrosion resistance
   E. hardness

7. 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

8. 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

9. 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%.

10. 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