Fuels and Combustion MCQs

469 MCQs  — Chemical Engineering MCQs  (Page 7 of 47)

Attempt Fuels and Combustion Quiz
Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher __________________?
A. Calorific value
B. Higher c/h ratio
C. Sulphur content
D. Difference in gross & net calorific value
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With increase in the oxygen content of the coal, its ______________ decreases?
A. Calorific value
B. Caking power
C. Both a. & b.
D. Neither a. nor b.
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The calorific value of ‘LPG’ (50% propane + 50% butane) is about ______________ kcal/Nm3?
A. 5000
B. 25,000
C. 10,000
D. 15,000
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Fuel for a nuclear reactor (thermal) is ____________________?
A. Uranium
B. Plutonium
C. Radium
D. None of these
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Presence of free moisture in coal is most disadvantageous during_________________?
A. Its pulverisation (as it requires more power)
B. Combustion of fire slacks on the grates
C. Handling (e.g. when emptying wagons)
D. None of these
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The fuel ratio of a coal is__________________?
A. The ratio of its percentage of fixed carbon to that of volatile matter
B. Helpful in estimation of its rank
C. Both a. and b.
D. Neither a. nor b.
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Lurgi coal gasifier is a pressurised ______________ bed reactor?
A. Moving
B. Fixed
C. Fluidised
D. Entrained
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A travelling grate stoker is meant for the efficient burning of ______________ coal?
A. Caking
B. Pulverised
C. Non-caking
D. High ash
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Largest constituent of blast furnace gas is__________________?
A. N2
B. Co
C. Co2
D. H2
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The bright glow of a combustion process is the characteristic of ______________ temperature oxidation of coal?
A. Fast & high
B. Slow & low
C. Slow & high
D. Fast & slow
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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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