Process Equipment and Plant Design Online Test - Set 11 - ObjectiveBooks

Process Equipment and Plant Design Online Test - Set 11

Practice Test: Question Set - 11

1. Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in
    (A) Pyrolysis of oil
    (B) Sintering of porous catalyst
    (C) Hydrogen embrittlement
    (D) All (a), (b) and (c)

2. Pick out the wrong statement.
    (A) Strongly caking coal should not be used in the Lurgi gasifier
    (B) Acetylene gas cannot be used for illumination purpose
    (C) Water gas is called blue gas because of the color of the flame, when it is burnt
    (D) Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

3. Oleum produces fumes of
    (A) SO2
    (B) H2SO4
    (C) SO3
    (D) SO2 + H2SO4

4. The difference between saponification value and acid value is
    (A) Called ester value
    (B) Always negative
    (C) Constant for all fatty oils
    (D) None of these

5. Which of the following is not produced commercially from sea water?
    (A) Magnesium & potassium compounds
    (B) Common salt
    (C) Bromine
    (D) Iodine

6. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?
    (A) NH3
    (B) NaCl
    (C) CaO
    (D) Coke

7. The most commonly used substance to speed up the sedimentation of sewage is
    (A) Lime
    (B) Sulphuric acid
    (C) Chlorine
    (D) Sodium bisulphite

8. Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
    (A) AgO
    (B) Al2O3
    (C) ZnCl2
    (D) Fe2O3

9. Hydrogen gas is not produced commercially (for nitrogenous fertilizer manufacture) by
    (A) Iron-steam reaction
    (B) Electrolysis of water
    (C) Steam reforming of naphtha
    (D) Its cryogenic separation from coke oven gas

10. Multistage catalytic converter is not used in the
    (A) Conversion of SO2 to SO3
    (B) NH3 synthesis reaction
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

11. __________ is an ore of lead.
    (A) Quartz
    (B) Galena
    (C) Siderite
    (D) Chalcopyrite

12. Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of
    (A) Trichloroethylene
    (B) Perchloroethylene
    (C) Parathion
    (D) Methanol

13. Presence of H2S in raw water (to be chlorinated) results in the
    (A) Reduced softening capacity of zeolite
    (B) Increased dosage of chlorine to provide a disinfecting residual in the water
    (C) Easy removal of its hardness
    (D) None of these

14. Which allotrope of sulphur is insoluble in carbon disulphide?
    (A) Rhombic sulphur
    (B) Monoclinic sulphur
    (C) Plastic sulphur
    (D) Milk of sulphur

15. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like
    (A) High cost
    (B) Fragile nature
    (C) Easy poisoning tendency
    (D) All (a), (b) and (c)

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