Chemical Process Design and Simulation Online Practice - Set 06 - ObjectiveBooks

Chemical Process Design and Simulation Online Practice - Set 06

Practice Test: Question Set - 06

1. Sizing material is incorporated in paper to
    (A) Impart resistance to penetration by liquids
    (B) Increase its thickness
    (C) Increase its flexibility & opacity
    (D) Increase its brightness

2. Widely used method for the conditioning of boiler feed water is the
    (A) Cold lime process
    (B) Coagulation
    (C) Hot-lime soda process
    (D) Sequestration

3. Phenol formaldehyde is produced by condensation polymerization. It is also known as
    (A) Teflon
    (B) Bakelite
    (C) Polyester
    (D) Nylon-66

4. Shrinkage volume in cement setting does not depend upon the
    (A) Sand to cement ratio
    (B) Water to cement ratio
    (C) Ambient temperature fluctuation
    (D) Drying period

5. What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
    (A) Cl2 & Na
    (B) Cl2 & H2
    (C) O2 & H2
    (D) Cl2, H2 & NaOH solution

6. Hydrolysis of sugar is called
    (A) Hydration
    (B) Inversion
    (C) Esterification
    (D) None of these

7. Chloramines are used in water treatment for
    (A) Disinfection and control of taste & odour
    (B) Corrosion control
    (C) Removing turbidity
    (D) Control of bacteria

8. Commercially ethylene is produced from naphtha by
    (A) Catalytic cracking
    (B) Catalytic dehydrogenation
    (C) Pyrolysis
    (D) Hydrocracking

9. Ethanol amine is produced using ammonia and
    (A) Ethyl benzene
    (B) Ethylene oxide
    (C) Ethanol
    (D) Ethane

10. Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.
    (A) Chromium
    (B) Arsenic
    (C) Copper
    (D) Manganese

11. Ore concentration by froth floatation utilizes the __________ of ore particles.
    (A) Density difference
    (B) Wetting characteristics
    (C) Terminal velocities
    (D) None of these

12. Yellow glycerine is made into white, using
    (A) Activated carbon
    (B) Diatomaceous earth
    (C) Bauxite
    (D) Bentonite

13. Wet chlorine gas produced during electrolysis of brine is dehydrated by
    (A) Spraying 66° Be H2SO4 counter current to the flow of the gas
    (B) Passing it through a bed of diatomaceous earth
    (C) Passing it through a bed of silica gel
    (D) None of these

14. Flux addition during smelting of ore is done to
    (A) Remove impurities/gangue
    (B) Enhance rate of reaction
    (C) Accelerate reduction of ore
    (D) Separate slag from metal

15. Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.
    (A) Coke and sand Coke and sand
    (B) Brine and coal
    (C) Coke and caustic soda
    (D) None of these

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