chemical engineering MCQs – Page 274

Practise multiple-choice questions from chemical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs
5461. Traces of tar fog present in the coke oven gas is removed by_________________?
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A. Washing with monoethanolamine

B. Electrostatic precipitator

C. Cyclone separator

D. Wet packed scrubber

5462. Which of the following is generally not drawn into fiber ?
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A. Unsaturated polyesters

B. Polyacrylonitrile

C. Polyamide

D. Saturated polyesters

5463. Vulcanisation of rubber does not increase its_________________?
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A. None of these

B. Elasticity

C. Ductility

D. Plasticity
5464. Polyhexamethylene adipamide is also known as______________?
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A. Nylon-66

B. Epoxy resin

C. Silicone rubber

D. Bakelite

5465. Poly-tetra-fluoro ethylene (PTFE) is known as_________________?
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A. Teflon

B. Celluloid

C. Bakelite

D. Dacron

5466. Percentage of carbon monoxide in blast furnace gas may be around ____________________ ?
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A. 52

B. 8

C. 14

D. 22
5467. Dacron is a/an___________________?
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A. Addition polymer

B. Condensation polymer

C. Polyester

D. Both B. and C.
5468. Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?
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A. H2

B. N2

C. CH4

D. CO2

5469. Which is the most matured coal ?
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A. Semi-anthracite

B. Lignite

C. Anthracite

D. Bituminous

5470. Zeigler Natta catalyst (AlR3 AlCl3) is used in the polymerisation of_________________?
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A. Styrene

B. Vinyl acetate

C. Propylene

D. Vinyl chloride

5471. Bristles of tooth brushes are made of_______________?
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A. Nylon-66

B. Nylon-6

C. PVC

D. Polystyrene

5472. In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer ?
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A. Buna-S

B. PTFE

C. PMMA

D. Polycaprolactam

5473. Fuel for a nuclear reactor (thermal) is ____________________?
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A. None of these

B. Radium

C. Uranium

D. Plutonium

5474. Which of the following is stretched into fibers ?
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A. Isoprene

B. Bakelite

C. Unsaturated polyester

D. Saturated polyester
5475. In flue gas analysis by Orsats apparatus, carbon monoxide is absorbed by__________________?
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A. None of these

B. Potassium hydroxide

C. Cuprous chloride

D. Alkaline pyrogallol solution

5476. _______________________ is not a condensation polymer ?
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A. Nylon-66

B. Dacron

C. Polystyrene

D. Teflon
5477. Largest constituent of blast furnace gas is__________________?
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A. CO

B. N2

C. CO2

D. H2

5478. High excess air in combustion of fuels results in____________________?
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A. Increased fuel consumption

B. Incomplete combustion

C. None of these

D. Smoky flame

5479. ______________ is an addition polymer ?
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A. Polythene

B. Nylon

C. Bakelite

D. None of these

5480. Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its ___________________?
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A. All A., B. and C.

B. Flue gas has lower dew point thereby facilitating more waste heat recovery

C. Sulphur content is lower

D. Emissivity factor is higher