Chemical Engineering MCQs

6108 MCQs  (Page 97 of 611)

Attempt Chemical Engineering Quiz
Inversion of sucrose produces_____________________?
A. Fructose
B. Glucose
C. Both a. & b.
D. Neither a. nor b.
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Phenolic antiseptics are added in the __________________ soap?
A. Shaving
B. Medicated
C. Metallic
D. Transparent
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The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?
A. 800
B. 1600
C. 4000
D. 8500
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Soap cannot be used with hard water, because _________________?
A. Hard water contains sulphate
B. They form insoluble calcium soaps which precipitate
C. They attract back the removed dirt
D. None of these
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Carborundum consists mainly of_________________?
A. Bauxite
B. Silicon carbide
C. Boron carbide
D. Calcium carbide
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Carboxymethyl cellulose (CMC) is added in detergents to_________________?
A. Prevent redeposition of soil on cleaned surface
B. Act as optical brightening agent
C. Inhibit corrosion in washing machines made of aluminium
D. None of these
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Styrene (a monomer for the production of polystyrene) is commercially produced by ____________________?
A. Catalytic dehydrogenation of ethyl benzene
B. Dehydration of ethyl alcohol followed by hydrogenation
C. Reacting ethylene oxide with acetaldehyde
D. Fermentation of starch
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Reaction of calcium carbide with water produces a gas, which is used_________________?
A. As an illuminant
B. For metal cutting/welding
C. Both a. & b.
D. Neither a. nor b.
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In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed ?
A. Furnace → converter → absorber
B. Furnace → evaporator → absorber
C. Furnace → converter → evaporator
D. Converter → furnace → absorber
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Acrylonitrile is mainly used in the _____________ industry?
A. Polymer
B. Printing
C. Dyeing
D. Photographic
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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