Cast iron has very high___________________?

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. High speed steel should have high___________________?

   A. Toughness
   B. Wear resistance
   C. Hardenability
   D. Both B. & C.

3. Shock resisting steels should possess high___________________?

   A. Hardness
   B. Toughness
   C. Tensile strength
   D. Wear resistance

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. Cast iron detachable joint is used in __________ pipes.

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

6. Cast iron vessels are not suitable for the storage of_________________?

   A. Freon
   B. H2SO4 (95%) at room temperature
   C. H2SO4 (fuming)
   D. Wet SO2

7. Cast iron and steel pipes are produced by ____________ casting?

   A. Die
   B. Investment
   C. Slush
   D. True centrifugal

8. With increase in carbide/graphite ratio in cast iron, its__________________?

   A. Hardness & brittleness increases
   B. Ductility decreases
   C. Both A. and B.
   D. Neither A. nor B.

9. Presence of high phosphorous in cast iron increases its____________________?

   A. Fluidity
   B. Melting point
   C. Shrinkage
   D. Tensile strength

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