Chemical Process Equipment Selection and Design MCQ - Set 29 - ObjectiveBooks

Chemical Process Equipment Selection and Design MCQ - Set 29

Practice Test: Question Set - 29

1. Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils
    (A) Cause cholesterol build up and blood clotting
    (B) Are prone to rancid oxidation
    (C) Always contain some amount of nickel (as their complete removal is very difficult)
    (D) Have affinity to retain harmful sulphur compounds

2. Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have
    (A) High electrical insulation properties
    (B) Sharp melting points
    (C) Low co-efficient of thermal expansion
    (D) Compressive strength much greater than their tensile strengths

3. Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc.?
    (A) Sodium silicate
    (B) Sodium borate
    (C) Sodium tripolyphosphate (STPP)
    (D) Caustic soda

4. Fats as compared to oils have
    (A) More unsaturated glycerides of fatty acids
    (B) Less unsaturated glycerides of fatty acids
    (C) Much higher reactivity to oxygen
    (D) Lower melting point

5. Bromine is used in the preparation of
    (A) Fire extinguishing compounds
    (B) Fire proofing agents
    (C) Dyes and antiknock compounds
    (D) All (a), (b) and (c)

6. Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of
    (A) 4 kgf/cm2 & 500°C
    (B) 10 kgf/cm2 & 1000°C
    (C) 40 kg/cm2 & 200°C
    (D) 100 kgf/cm2 & 500°C

7. Addition of calcium oxide to water produces
    (A) Exothermic heat
    (B) Hissing sound
    (C) Slaked lime
    (D) All (a), (b) & (c)

8. Calcareous & argillaceous materials are used in the manufacture of
    (A) Lead
    (B) Cement
    (C) Carbon disulphide
    (D) None of these

9. __________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
    (A) Solvay
    (B) Ostwald's
    (C) Haber's
    (D) None of these

10. Dichloro diphenyl __________ is the full form of DDT (an insecticide).
    (A) Tetrachloroethane
    (B) Trichloroethane
    (C) Tetrachloromethane
    (D) Trichloromethane

11. Dense soda ash used in the manufacture of glass, is chemically represented by
    (A) Na2CO3
    (B) Na2CO3.10H2O
    (C) Na2CO3.H2O
    (D) Na2HCO3

12. Isopropyl benzene produced by alkylation of benzene with propylene is known as
    (A) Neoprene
    (B) Cumene
    (C) Gelatin
    (D) Mercaptans

13. Which of the following is a detergent?
    (A) Benzene hexachloride
    (B) Alkyl benzene sulphonate
    (C) Polytetrafluoroethylene
    (D) Cellulose nitrate

14. Pick out the wrong statement.
    (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper
    (B) Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number
    (C) Bagasse fibre contains both lignin & cellulose
    (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

15. Coagulant is used __________ filtration.
    (A) Before
    (B) After
    (C) During
    (D) To avoid

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