Process Equipment and Plant Design Principles and Practices pdf - Set 12 - ObjectiveBooks
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Process Equipment and Plant Design Principles and Practices pdf - Set 12

Practice Test: Question Set - 12


1. Refractory bricks burnt at very high temperature have got
    (A) Greater resistance to corrosion by slags
    (B) Less resistance to corrosion by slags
    (C) High spalling tendency
    (D) None of these

2. Separation of fresh water from sea water can be done by the __________ operation.
    (A) Osmosis
    (B) Reverse osmosis
    (C) Absorption
    (D) Adsorption

3. Main constituent of limestone is
    (A) CaCO3
    (B) MgCO3
    (C) Na2CO3
    (D) CaSO4

4. The main use of activated carbon in water treatment is to control
    (A) Bacterial growth
    (B) Taste and odour
    (C) Turbidity
    (D) None of these

5. Sulphuric acid saturated with SO3 is called
    (A) Concentrated H2SO4
    (B) Sulphurous acid
    (C) Oleum
    (D) None of these

6. Pick out the wrong statement.
    (A) Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
    (B) Portland cement is made employing wet process
    (C) Gypsum is added to Portland cement to lengthen its setting time
    (D) None of these

7. Hydrogenation of oil does not
    (A) Remove double bonds
    (B) Raise its melting point
    (C) Improve its resistance to oxidation
    (D) None of these

8. Fatty material used in soap making is
    (A) Fatty acid
    (B) Fatty alcohols
    (C) Tallow
    (D) Detergents

9. Stereospecific agents are exemplified by
    (A) Radiation
    (B) Supported metal oxide catalysts
    (C) Ziegler catalysts
    (D) All (a), (b) & (c)

10. The enzyme which converts starch into the disaccharides maltose is
    (A) Diastase
    (B) Maltase
    (C) Yeast
    (D) None of these

11. Percentage of alcohol in beer may be around __________ percent.
    (A) 2-8
    (B) 18-23
    (C) 27-32
    (D) 1-4

12. __________ of rubber decreases after its vulcanization.
    (A) Resistance to the action of organic solvent
    (B) Tackiness
    (C) Maximum service temperature
    (D) Tensile strength

13. Salt is added in the kettle during soap manufacture to separate
    (A) Soap from lye
    (B) Glycerine from lye
    (C) The metallic soap
    (D) The unsaponified fat from soap

14. Reaction of an alcohol with organic acid is called the __________ reaction.
    (A) Saponification
    (B) Esterification
    (C) Neutralization
    (D) Acidification

15. The main product of high temperature carbonization of coal is
    (A) Coke
    (B) Ammonia
    (C) Tar
    (D) Phenol

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