Steam Boilers, Engines, Nozzles and Turbines Green coal, in order to be burnt, must be Burnt in excess air Burnt as powder Heated sufficiently Heated to its ignition point Burnt in excess air Burnt as powder Heated sufficiently Heated to its ignition point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Coke is produced by Pulverizing coal in inert atmosphere Heating wood in a limited supply of air at temperatures below 300°C Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel Enriching carbon in the coal Pulverizing coal in inert atmosphere Heating wood in a limited supply of air at temperatures below 300°C Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel Enriching carbon in the coal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as Injector Pressure gauge Feed check valve Feed pump Injector Pressure gauge Feed check valve Feed pump ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines If partial pressure of air and steam be ‘pa’ and ‘ps’ respectively in a condenser, then according to Dalton's law, the pressure in condenser is equal to pa - ps pa + ps ps - pa None of these pa - ps pa + ps ps - pa None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Sulphur content of fuels is very important to the plant operators because it Retards electric precipitation Has high heating value Promotes complete combustion Has highly corrosive effect Retards electric precipitation Has high heating value Promotes complete combustion Has highly corrosive effect ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water boils when its vapor pressure Equals to atmospheric pressure Equals 760 mm of mercury Equals that of the surroundings Equals the pressure of water in the container Equals to atmospheric pressure Equals 760 mm of mercury Equals that of the surroundings Equals the pressure of water in the container ANSWER DOWNLOAD EXAMIANS APP
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