Fuels and Combustion MCQs

469 MCQs  — Chemical Engineering MCQs  (Page 22 of 47)

Attempt Fuels and Combustion Quiz
Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of _____________ °C?
A. 80-170
B. 200-300
C. 250-270
D. 280-300
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Which of the following can be made into briquettes without the use of a binder ?
A. Lignite
B. Bituminous coal
C. Anthracite coal
D. None of these
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Junker’s calorimeter is used to determine the calorific value of______________________?
A. Pulverised coal
B. Gaseous fuels
C. Fuel oil
D. None of these
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Deficiency of combustion air during combustion of a gaseous fuel_____________________?
A. Lengthens the flame
B. Causes heat loss of fuel by its partial combustion
C. Both a. & b.
D. Shortens the flame
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Fossil fuels mean___________________?
A. Solid fuels
B. Liquid fuels
C. Those fuels which are found in the crust of earth
D. Premature fuels with low calorific value
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Removal of hydrogen from coke oven gas ___________________?
A. Increases its calorific value
B. Decreases its calorific value
C. Does not alter its calorific value
D. Is not possible on commercial scale
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Gross & net calorific value is the same for___________________?
A. Blast furnace gas
B. Coke oven gas
C. L.d. converter gas
D. None of these
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A good coking coal should have high ______________ content?
A. Ash
B. Sulphur & phosphorus
C. Mositure
D. None of these
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The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always___________________?
A. 1
B. < 1
C. > 1
D. Unpredictable
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Which of the following is not a by-product recovered in a high temperature coal carbonisation plant ?
A. Benzol
B. Pitch-creosote mixture (pcm)
C. Naphthalene
D. Ethylene
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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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