Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 10 20 5 35 10 20 5 35 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Anthracite Bituminous coal Lignite High temperature coke (V.M < 0.5%) Anthracite Bituminous coal Lignite High temperature coke (V.M < 0.5%) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Contains more than 90% fussain Contains mainly vitrain & clarain and is generally coking Is non-coking Contains more than 90% durain Contains more than 90% fussain Contains mainly vitrain & clarain and is generally coking Is non-coking Contains more than 90% durain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always Unpredictable 1 < 1 > 1 Unpredictable 1 < 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Orsat apparatus is meant for Finding out combustion efficiency Gravimetric analysis of flue gas Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride None of these Finding out combustion efficiency Gravimetric analysis of flue gas Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal? Durain Fussain Vitrain Clarain Durain Fussain Vitrain Clarain ANSWER DOWNLOAD EXAMIANS APP
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