Chemical Process Engineer Exam Questions Practice - Set 02 - ObjectiveBooks

Chemical Process Engineer Exam Questions Practice - Set 02

Practice Test: Question Set - 02

1. Soap cannot be used with hard water, because
    (A) Hard water contains sulphate
    (B) They form insoluble calcium soaps which precipitate
    (C) They attract back the removed dirt
    (D) None of these

2. The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.
    (A) 800
    (B) 1600
    (C) 4000
    (D) 8500

3. Carborundum consists mainly of
    (A) Bauxite
    (B) Silicon carbide
    (C) Boron carbide
    (D) Calcium carbide

4. Pick out the wrong statement.
    (A) Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively
    (B) Protein catalysts are called enzymes
    (C) The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes
    (D) Total sugar content in molasses is about 10%

5. Yellow phosphorus is transported under
    (A) Air
    (B) Water
    (C) Nitrogen
    (D) Helium

6. Carboxymethyl cellulose (CMC) is added in detergents to
    (A) Prevent redeposition of soil on cleaned surface
    (B) Act as optical brightening agent
    (C) Inhibit corrosion in washing machines made of aluminium
    (D) None of these

7. Nitric acid is not used in the manufacture of
    (A) Detergents
    (B) Fertilizers
    (C) Aqua regia
    (D) Explosives

8. Styrene (a monomer for the production of polystyrene) is commercially produced by
    (A) Catalytic dehydrogenation of ethyl benzene
    (B) Dehydration of ethyl alcohol followed by hydrogenation
    (C) Reacting ethylene oxide with acetaldehyde
    (D) Fermentation of starch

9. Which of the following is an explosive?
    (A) Nitro-glycerine
    (B) Trinitrotoluene (TNT)
    (C) Cellulose nitrate
    (D) All (a), (b), and (c)

10. Reaction of calcium carbide with water produces a gas, which is used
    (A) As an illuminant
    (B) For metal cutting/welding
    (C) Both (a) & (b)
    (D) Neither (a) nor (b)

11. Low temperature carbonization of coal takes place at __________ °C.
    (A) 300
    (B) 1100
    (C) 700
    (D) 900

12. In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed:
    (A) Furnace → converter → absorber
    (B) Furnace → evaporator → absorber
    (C) Furnace → converter → evaporator
    (D) Converter → furnace → absorber

13. Viscose rayon is
    (A) Cellulose nitrate
    (B) Regenerated cellulose nitrate
    (C) Regenerated cellulose acetate
    (D) None of these

14. Which of the following is not a product of coal tar distillation?
    (A) Anthracene
    (B) Creosote oil
    (C) Carbolic oil
    (D) None of these

15. Acrylonitrile is mainly used in the __________ industry.
    (A) Polymer
    (B) Printing
    (C) Dyeing
    (D) Photographic

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