Fuels and Combustion A good coking coal should have high __________ content. Sulphur & phosphorus Ash Moisture None of these Sulphur & phosphorus Ash Moisture None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack heat losses can be minimised by Using low c.v. fuels Controlling the excess air Maintaining proper draft in the furnace Oxygen enrichment of combustion air Using low c.v. fuels Controlling the excess air Maintaining proper draft in the furnace Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Natural draft created by the chimney depends upon Neither A nor B Temperature of the flue gas Both A & B Its height Neither A nor B Temperature of the flue gas Both A & B Its height ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Risk of explosion Chances of clinker formation Incomplete combustion of coal Requirement of large volume combustion chamber Risk of explosion Chances of clinker formation Incomplete combustion of coal Requirement of large volume combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be Infinitely long 200 meters Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long 200 meters Equal to the height of the hot gas column producing draught More than 105.7 metres ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dry air requirement for burning 1 Nm³ of CO to CO₂ may be around __________ Nm³. 2.4 11.4 0.87 1.75 2.4 11.4 0.87 1.75 ANSWER DOWNLOAD EXAMIANS APP
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