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Chemical Engineering :: Materials and Construction

  1. Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about

  2. A.
    half
    B.
    one third
    C.
    one fifth
    D.
    one twelfth

  3. Ball bearings are generally made of

  4. A.
    plain carbon steel
    B.
    chrome carbon steel
    C.
    stainless steel
    D.
    malleable cast iron

  5. Mild steel is a/an __________ steel.

  6. A.
    low carbon
    B.
    medium carbon
    C.
    high carbon
    D.
    high alloy

  7. Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making

  8. A.
    nuts
    B.
    bolts
    C.
    chiesels
    D.
    studs

  9. Which is the purest form of iron ?

  10. A.
    Wrought iron
    B.
    Pig iron
    C.
    Bessemer iron
    D.
    Grey iron

  11. White cast iron as compared to grey cast iron is

  12. A.
    more durable
    B.
    very brittle
    C.
    very hard
    D.
    all (a), (b) & (c)

  13. Combination of metals and ceramics are called

  14. A.
    metalloy
    B.
    cermets
    C.
    pellets
    D.
    non-crystalline ceramics

  15. __________ iron is produced, when molten pig iron is chilled suddenly.

  16. A.
    White cast
    B.
    Grey cast
    C.
    Wrought
    D.
    none of these

  17. Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?

  18. A.
    Cast iron
    B.
    Steel
    C.
    Nickel
    D.
    Karbate

  19. Vycor, a widely used material for making 'thermal wells' in temperature measurement, is a

  20. A.
    cermet
    B.
    glass
    C.
    thermosetting plastic
    D.
    metallic alloy