A Best Way To Crack Gorenment Job Exams

Chemical Engineering Objective Questions { Chemical Process }



316. Lubricating greases are a mixture of
A. Mineral oil, soap and additives
B. Mineral oil and metallic soap
C. Mineral oil and fatty oil
D. Fatty oil and metallic soap
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317. __________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
A. Phosphates
B. Chromates
C. Sulphates
D. Bi-carbonates
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318. Glycerine is not used in the
A. Manufacture of explosive
B. Conditioning and humidification of tobacco
C. Manufacture of pharmaceuticals
D. None of these
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319. 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
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320. The terminology 'BTX' used in coal tar distillation industry refers to
A. Benzol-toluol-xylol
B. Benzol-toluene-xylene
C. Benzene-toluol-xylol
D. Benzene-toluene-xylene
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321. Use of chlorine in the treatment of sewage
A. Helps in grease separation
B. Increases the biological oxygen demand(BOD)
C. Causes bulking of activated sludge
D. Aids in flocculation
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322. Which of the following is used as a binding material in soap to improve soap texture?
A. Rosin
B. Borax
C. Benzyl acetate
D. Sodium carbonate
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