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Chemical Engineering :: Materials and Construction

  1. Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium

  2. A.
    tin, nickel, iron and chromium
    B.
    and graphite
    C.
    and copper
    D.
    none of these

  3. The material used in the filament of electric bulbs is

  4. A.
    nichrome
    B.
    tungsten
    C.
    constantan
    D.
    German silver

  5. Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making

  6. A.
    shafts
    B.
    flanges
    C.
    gears
    D.
    shear blades

  7. Caustic soda can be stored in __________ drums.

  8. A.
    steel
    B.
    cast iron
    C.
    brass
    D.
    gun metal

  9. Work hardening of a material

  10. A.
    decreases its tensile strength.
    B.
    decreases its ductility.
    C.
    increases its ductility.
    D.
    does not affect its ductility.

  11. Wrought iron is

  12. A.
    high carbon iron.
    B.
    highly resistance to acid corrosion.
    C.
    malleable & ductile; and hence is used for chain links, hooks & couplings.
    D.
    an alloy of iron, chromium & carbon.

  13. Perspex is nothing but

  14. A.
    acrylic sheet
    B.
    an elastomer
    C.
    an alloy of lead and tin
    D.
    aluminium foil clad with bakelite

  15. Centrifugal pump made of pyrex or glass can't be used to pump

  16. A.
    milk and fruit juices.
    B.
    alkaline solutions.
    C.
    dilute H2SO4 at room temperature.
    D.
    brine.

  17. Ability of a material to __________ is indicated by its damping capacity.

  18. A.
    withstand compression
    B.
    absorb vibration
    C.
    absorb shock
    D.
    none of these

  19. Corrosion resistance of steel is increased by the addition of

  20. A.
    phosphorous and tungsten.
    B.
    nickel and chromium.
    C.
    lead and vanadium.
    D.
    molybdenum and tungsten.