Basic Questions of Chemical Engineering - Set 34 - ObjectiveBooks

Basic Questions of Chemical Engineering - Set 34

Practice Test: Question Set - 34

1. __________ test is the appropriate test to determine whether a material is ductile or brittle.
    (A) Impact
    (B) Cupping
    (C) Hardness
    (D) Tensile

2. Primary designation of steel is based on its
    (A) Hardness & tensile strength
    (B) Carbon content
    (C) Iron content
    (D) Alloying elements content

3. The two elements required to form substitutional solid solution should not have
    (A) Same crystalline structure
    (B) Same valency
    (C) Widely differing electronegativity
    (D) Same atomic sizes

4. Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.
    (A) Creep
    (B) Fatigue
    (C) Endurance
    (D) Tensile

5. The temperature at which ferromagnetic material can no longer be magnetized by the outside forces, is termed as the
    (A) Critical point
    (B) Curie temperature
    (C) Inversion temperature
    (D) Eutectic temperature

6. With increase in impurities in metals, their corrosion resistances
    (A) Increase
    (B) Decrease
    (C) Remain same
    (D) May increase or decrease; depending on the type of metal

7. Density in the solid state is slightly less than that in its liquid state, in case of
    (A) Carbon dioxide
    (B) Water
    (C) Mercury
    (D) None of these

8. __________ iron is produced by the annealing of white cast iron.
    (A) Malleable
    (B) Nodular
    (C) Ductile
    (D) Grey

9. Starting friction is low in case of the __________ lubrication.
    (A) Boundary
    (B) Hydrodynamic
    (C) Hydrostatic
    (D) Mixed/semi-fluid

10. While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.
    (A) Waiting
    (B) Idle
    (C) Inspection
    (D) Tool replacement

11. Large scale fire on fuel gas line is normally extinguished by
    (A) Water
    (B) Steam
    (C) Foam
    (D) Nitrogen

12. Most of the phosphorous present in the blast furnace burden enters into
    (A) Hot metal
    (B) Flue gases
    (C) Slag
    (D) Refractory lining

13. Which of the following metals is not subjected to electrolytic refining/purification?
    (A) Copper
    (B) Zinc
    (C) Tin
    (D) Aluminium

14. Baffles provided on the shell side of a shell and tube heat exchanger are meant for
    (A) Providing support for the tubes
    (B) Improving heat transfer
    (C) Both 'a' & 'b'
    (D) Preventing the fouling of tubes & stagnation of shell side fluid

15. Pick out the correct statement.
    (A) Hot worked materials are subjected to annealing to remove internal stresses
    (B) Annealing of steel hardens it slightly
    (C) Normalizing of a material induces stresses
    (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness

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