Fuels and Combustion MCQs

469 MCQs  — Chemical Engineering MCQs  (Page 33 of 47)

Attempt Fuels and Combustion Quiz
Which of the following is a primary fuel ?
A. Blast furnace coke
B. Gasoline
C. Natural gas
D. Wood charcoal
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Hard coke is manufactured from___________________?
A. Lignite
B. Bituminous coal
C. Semi-anthracite
D. Anthracite
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Coal tar (produced by high temperature carbonisation) is the main source of_________________?
A. Aromatic compounds
B. Aliphatic compounds
C. Paraffins
D. Olefins
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Ionisation potential applied across the electrodes of electrostatic tar precipitator is around_____________________?
A. 230 v ac
B. 60 kv ac
C. 230 v dc
D. 60 kv dc
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Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an ______________ bed gasifier?
A. Entrained
B. Moving
C. Fixed
D. Fluidised
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A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon _________________?
A. Is less liable to spontaneous combustion on storage
B. Is more difficult to ignite and produces a shorter flame
C. Requires smaller combustion space and less secondary air
D. None of these
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The calorific value is the highest out of the following for__________________?
A. Producer gas
B. Water gas
C. Coke oven gas
D. Blast furnace gas
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Ash content in the coke produced from a coking coal having 20% ash may be around _____________ percent?
A. 6
B. 12
C. 18
D. 24
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The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called ?
A. Fire point
B. Smoke point
C. Burning temperature
D. Kindling temperature
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Stack (chimney) height in a big thermal power plant is dictated by the___________________?
A. Pollution control aspect
B. Draught to be created
C. Limitation of constructional facilities
D. None of these
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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