Chemical Engineering MCQs

6108 MCQs  (Page 155 of 611)

Attempt Chemical Engineering Quiz
Which of the following is a constituent of coffee ?
A. Caffeine
B. Nicotine
C. Calgon
D. Lignin
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Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?
A. Low co-efficient of expansion
B. High co-efficient of expansion
C. High melting point
D. Both b. and (c)
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Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces ________________?
A. Nylon-6
B. Dacron
C. Polyester
D. Pvc
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Use of water having dissolved oxygen in boilers promotes___________________?
A. Corrosion
B. Sequestration
C. Scale formation
D. None of these
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Deaeration of water in its treatment is necessary, as it___________________?
A. Minimises its turbidity
B. Helps in controlling its taste and odour
C. Minimises its corrosiveness
D. None of these
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Permanent hardness of water is due to the presence of calcium & magnesium __________________?
A. Bi-carbonates
B. Sulphates & chlorides
C. Carbonate
D. None of these
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Glycerine can be obtained from ________________ ?
A. Fat
B. Naphthalene
C. Cumene
D. Sucrose
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Which of the following is not produced on commercial scale from sea water ?
A. Bromine
B. Magnesium compounds
C. Potassium compounds
D. Sodium sulphate
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Parathion and Malathion are _____________________?
A. Pesticides
B. Plasticisers for unsaturated polyesters
C. Pain-relieving drugs (analgesic)
D. Tranquilisers
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Raw materials required for the manufacture of __________________ is acetylene and hydrochloric acid?
A. Phthalic anhydride
B. Vinyl chloride
C. Maleic anhydride
D. Dacron
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Word of the Day
26 Jul
Simultaneously
at the same time.
ایک ہی وقت میں، ایک ساتھ، بیک وقت

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