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Fuels and Combustion MCQs

Chemical Engineering Objective Questions

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113. High sulphur (4-6%) coal in India are found in
A. Assam
B. Andhra Pradesh
C. Bengal
D. Madhya Pradesh
Discussion
114. Which of the following is not used as a binder in coal briquetting?
A. Tar
B. Molasses
C. Pitch
D. Line
Discussion
115. A coal with high ash content
A. Has higher calorific value
B. Is harder and stronger
C. Is not subjected to washing
D. Has low quantity of mineral matter
Discussion
116. Artificial draught produced by a fan can be controlled by the
A. Speed of the fan
B. Damper
C. Variation in the pitch of the fan blades
D. All of the above
Discussion
117. A good metallurgical coke
A. Should have high porosity
B. Should be brittle
C. Must contain moderate quantities of ash, moisture, sulphur and volatile matters
D. Should have low fusion point of its ash
Discussion
118. Fuel for a nuclear reactor (thermal) is
A. Uranium
B. Plutonium
C. Radium
D. None of these
Discussion
119. Pick out the wrong statement.
A. High concentration of oxygen in flue gas means high stack loss
B. Gaseous fuels require the least % excess air for complete combustion
C. The ratio of fixed carbon to volatile matter percentage in coal is called its 'fuel ratio'
D. Calorific value of natural gas is more than that of LPG
Discussion

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