Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed Before the superheater Before the economiser Between the economiser and chimney None of these Before the superheater Before the economiser Between the economiser and chimney None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The crown of the fire box is made hemispherical in order to Give maximum space Resist intense heat in fire box Withstand pressure inside boiler Give maximum strength Give maximum space Resist intense heat in fire box Withstand pressure inside boiler Give maximum strength ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be 188 m/s 79 m/s 900 m/s 450 m/s 188 m/s 79 m/s 900 m/s 450 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The behavior of coal in a furnace is determined by The content of ash and heating value The exact analysis The proximate analysis The content of sulphur The content of ash and heating value The exact analysis The proximate analysis The content of sulphur ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A safety valve usually employed with stationary boilers is Lever safety valve High steam and low water safety valve All of the listed here Dead weight safety valve Lever safety valve High steam and low water safety valve All of the listed here Dead weight safety valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine The pressure and temperature of steam remains constant The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades The expansion of steam takes place partly in the fixed blades and partly in the moving blades The steam is expanded from a high pressure to a condenser pressure in one or more nozzles The pressure and temperature of steam remains constant The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades The expansion of steam takes place partly in the fixed blades and partly in the moving blades The steam is expanded from a high pressure to a condenser pressure in one or more nozzles ANSWER DOWNLOAD EXAMIANS APP
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