Fuels and Combustion MCQs

469 MCQs  — Chemical Engineering MCQs  (Page 1 of 47)

Practice Fuels and Combustion MCQs with correct answers and explanations. These questions are from the Chemical Engineering MCQs section.

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Chemical Engineering Subcategories
Chemical EngineeringChemical Environmental Engineering
Chemical ReactionFertilizer Technology
Fluid Mechanics for ChemicalFuels and Combustion
Materials and ConstructionPolymer Technology
Refractory TechnologyThermodynamics for Chemical
Caking index of a coal is a measure of its _______________________?
A. Abradability
B. Reactivity
C. Agglutinating (binding) properties
D. Porosity
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Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?
A. H2
B. Ch4
C. Co2
D. N2
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The shift conversion reaction taking place during water gas manufacture is given by__________________?
A. C + h2o ↔ co + h2
B. C + 2h2o ↔ co2 + 2h2
C. Co + h2o ↔ co2 + h2
D. None of these
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_____________ of the coal is the basis for Seylor’s coal classification?
A. Proximate analysis
B. Ultimate analysis
C. Caking index
D. Calorific value
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In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?
A. Transportation of coal
B. Drying of coal
C. Combustion of coal by supplying it around the burner
D. Preheating the primary air
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In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?
A. Cuprous chloride
B. Potassium hydroxide
C. Alkaline pyrogallol solution
D. None of these
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Washing of coal decreases its_________________?
A. Caking index
B. Mineral matter content
C. Ash content
D. Both b. and c.
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To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?
A. Shallow and small piles
B. Fine sizes without the presence of any lump
C. Closed space without any ventilation facility
D. Large heaps with small surface to volume ratio
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The gas which contributes maximum to the heating value of natural gas is __________________?
A. Co
B. Co2
C. H2
D. Ch4
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Nitrogen in coal_________________?
A. Is present upto 1-2%
B. Comes from protein in parent vegetable matter
C. Is recovered as ammonia during its carbonisation
D. All a., b. and c.
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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