Fuels and Combustion MCQs

469 MCQs  — Chemical Engineering MCQs  (Page 14 of 47)

Attempt Fuels and Combustion Quiz
Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain __________________?
A. Co
B. Co2
C. H2o
D. Both b. & c.
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Which of the following has the highest calorific value ?
A. Lignite
B. Sub-bituminous coal
C. Anthracite
D. Peat
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Octane number of 2, 2, 4 – trimethyl pentane is __________________?
A. 0
B. 100
C. In between 0 and 100
D. More than 100
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Naphthalene is removed from coke oven gas by________________?
A. Scrubbing with wash oil (a petroleum product)
B. Adsorbing on bog iron bed
C. Absorbing in vetro-coke solution
D. None of these
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‘Fat’ coal means a coal having ___________________?
A. Low calorific value
B. High volatile matter
C. Low ash content
D. Non smoking tendency
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Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively ______________ percent?
A. 3 & 10
B. 10 & 3
C. 10 & 20
D. 15 & 8
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Hardgrove Grindability index of four coal samples are given below. Which of them is the easiest to grind ?
A. 50
B. 70
C. 85
D. 100
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Yield of pitch from distillation of high temperature tar is around _____________ percent?
A. 10
B. 25
C. 65
D. 90
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The maximum percentage of CO2 in a flue gas (from a carbonaceous fuel) can be_________________?
A. 21
B. 77
C. 79
D. 29
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Proximate analysis of coal determines its ______________ content?
A. Mositure, ash, sulphur & volatile matter
B. Mositure, volatile matter, ash & fixed carbon
C. Mositure, sulphur, nitrogen & fixed carbon
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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