Steam Boilers, Engines, Nozzles and Turbines In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be 260 kW 302 kW 282 kW 296 kW 260 kW 302 kW 282 kW 296 kW ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will May improve/worsen depending on size Worsen Improve Remain unaffected May improve/worsen depending on size Worsen Improve Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor depends upon Exit pressure Turbine stage efficiency All of these Initial pressure and superheat Exit pressure Turbine stage efficiency All of these Initial pressure and superheat 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 900 m/s 79 m/s 450 m/s 188 m/s 900 m/s 79 m/s 450 m/s 188 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The feed check valve is used in order to Recirculate unwanted feed water Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Check level of water in boiler drum Recirculate unwanted feed water Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Check level of water in boiler drum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Sulphur in coal results in Corroding air heaters All of these Facilitating ash precipitation Spontaneous combustion during coal storage Corroding air heaters All of these Facilitating ash precipitation Spontaneous combustion during coal storage ANSWER DOWNLOAD EXAMIANS APP
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