Cast iron is a ______________ material?

Related Mcqs:

1. White cast iron as compared to grey cast iron is ________________?

   A. More durable
   B. Very brittle
   C. Very hard
   D. All A., B. & C.

2. Maximum carbon content in cast iron is ______________ percent?

   A. 3.8
   B. 5.2
   C. 4.8
   D. 4.3

3. ______________ iron is produced, when molten pig iron is allowed to cool gradually?

   A. White cast
   B. Grey cast
   C. Wrought
   D. None of these

4. Containers made of high silicon cast iron (14% Si) are not suitable for the storage of ____________________?

   A. Acetic acid
   B. Benzoic & boric acids
   C. Phosphoric acid (95%) & sulphuric acid (95%)
   D. Hydrochloric acid (concentrated)

5. The most distinguished property of malleable cast iron is its high_________________?

   A. Ductility
   B. Hardness
   C. Malleability
   D. None of these

6. Cast iron detachable joint is used in __________ pipes.

   A. Steel
   B. Cast iron
   C. Asbestos cement
   D. Reinforced cement concrete

7. Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of___________________?

   A. Tungsten
   B. Vanadium
   C. Silicon
   D. All A., B. & C.

8. Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property ?

   A. Silicon
   B. Phosphorus
   C. Sulphur
   D. None of these

9. Silicon percentage in acid resistant cast iron is about________________?

   A. 4
   B. 8
   C. 14
   D. 20

10. Which one is remelted and poured into moulds to get cast iron ?

    A. Wrought iron
    B. Pig iron
    C. Low carbon steel
    D. Mild steel