Chemical Engineering MCQs

6108 MCQs  (Page 154 of 611)

Attempt Chemical Engineering Quiz
Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the _____________ process?
A. Mechanical
B. Sulphate/kraft
C. Sulphite
D. Neutral sulphite semi-chemical
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Oxygen is produced by fractionation of air using _____________ process?
A. Linde’s
B. Claude’s
C. Either a. or b.
D. None of these
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Hydrogenation of vegetable oils is a/an _______________ reaction ?
A. Endothermic
B. Autocatalytic
C. Exothermic
D. Homogenous
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Cement setting under water employs a/an _______________ process ?
A. Hydration
B. Decomposition
C. Oxidation
D. Reduction
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Paper grade bamboo contains about _______________ percent cellulose ?
A. 5
B. 20
C. 40
D. 60
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The major constituent of black liquor generated during paper manufacture is sodium___________________?
A. Sulphate
B. Carbonate
C. Hydroxide
D. Bi-carbonate
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Most widely and commonly used coagulant for the removal of suspended impurities in water is __________________?
A. Bleaching powder
B. Slaked lime
C. Alum
D. Copper sulphate
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Flash point of most vegetable oils is about _______________ °C ?
A. 50
B. 100
C. 200
D. 300
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Common salt is generally not produced commonly by ________________ method from brine ?
A. Freeze drying
B. Electrolytic
C. Solar evaporation
D. Vacuum evaporation
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Dacron (or Terylene) fibres as compared to nylon fibres have__________________?
A. Better heat & acid resistant properties
B. Poorer resistance to alkalis
C. Poorer dyeability
D. All a , b. and c.
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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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