134. Reheating of steam under ideal conditions takes place at constant
A.Entropy
B.Enthaply
C.Pressure
D.Temperature

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135. The maximum discharge through a chimney occurs when the height of chimney is
A.Infinitely long
B.Around 200 metres
C.Equal to the height of the hot gas column producing draught
D.Outside temperature is very low

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136. Proximate analysis of fuel is determination of percentage of
A.Carbon, hydrogen, nitrogen, sulphur, moisture
B.Fixed carbon, ash, volatile matter, moisture
C.Higher calorific value
D.Lower calorific value

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137. Which device is used in thermal power plants to reduce level of pollution
A.Induced draft fan
B.Smoke meter
C.Chimney
D.Precipitator

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138. Bomb calorimeter is used to determine
A.Higher calorific value at constant volume
B.Lower calorific value at constant volume,
C.Higher calorific value at constant pressure
D.Lower,calorific value at constant pressure

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139. Ultimate analysis of fuel is determination of percentage of
A.Carbon, hydrogen, nitrogen, sulphur, moisture
B.Fixed carbon, ash, volatile matter, moisture
C.Higher calorific value
D.(b) lower calorific value

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140. For combutsion of a fuel, following is essential
A.Correct fuel air ratio
B.Proper ignition temperature
C.02 to support combustion
D.All the three above

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