Fuels and Combustion MCQs

469 MCQs  — Chemical Engineering MCQs  (Page 30 of 47)

Attempt Fuels and Combustion Quiz
About _____________ Nm3 of air will be required for the complete combustion of 2Nm3 of CO?
A. 2
B. 3
C. 4
D. 5
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Calorific value of coal middling generated in coal washeries during washing of coal may be around _____________ Kcal/kg?
A. 1000
B. 4000
C. 6000
D. 8000
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Pulverised coal used in boiler firing need not have____________________?
A. Less mositure content
B. High fusion point of its ash
C. High bulk density
D. Lower ash content
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Benzol is used_____________________?
A. As a motor fuel blend
B. For producing benzene, toluene & xylene by its distillation
C. Both a. & b.
D. Neither a. nor b.
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Undercharging of coal in the by-product coke ovens results in ____________________?
A. Decrease in the c.v. of coke oven gas
B. Increase in its throughput
C. Increase in the c.v. of coke oven gas
D. No change in the c.v. of coke oven gas
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Hard pitch is used for making_____________________?
A. Pulverised fuel
B. Perfumes
C. Insecticides
D. Plastics
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Gobar gas is produced by the ______________ of cow dung?
A. Fermentation
B. Oxidation
C. Hydrogenation
D. None of these
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Main constituents of Benzol are ____________________?
A. Benzene, toluene & xylene
B. Tar & creosote
C. Ammonia & phenol
D. Anthracene & phenol
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Adiabatic flame temperature of a fuel is dependent on the initial temperature of___________________?
A. Fuel
B. Air
C. Both a. & b.
D. Neither a. nor b.
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Stoichiometric combustion of 12 kg of carbon requires _____________ of oxygen?
A. 1kg mole
B. 22.4 nm3
C. 32 kg
D. All a., b. and c.
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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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