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 900 m/s 450 m/s 79 m/s 188 m/s 900 m/s 450 m/s 79 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the fixed blades, Pressure and velocity both decreases Pressure decreases while velocity increases Pressure and velocity both increases Pressure increases while velocity decreases Pressure and velocity both decreases Pressure decreases while velocity increases Pressure and velocity both increases Pressure increases while velocity decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for steam turbines as compared to reciprocating steam engines? A steam turbine develops higher speeds The efficiency of steam turbine is higher The steam consumption is less All of these A steam turbine develops higher speeds The efficiency of steam turbine is higher The steam consumption is less All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam turbines are used for Direct drive of fans, compressors, pumps Electric power generation Large marine propulsion All of these Direct drive of fans, compressors, pumps Electric power generation Large marine propulsion All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Proximate analysis of fuel is determination of percentage of Fixed carbon, ash, volatile matter, moisture Higher calorific value Carbon, hydrogen, nitrogen, sulphur, moisture Lower calorific value Fixed carbon, ash, volatile matter, moisture Higher calorific value Carbon, hydrogen, nitrogen, sulphur, moisture Lower calorific value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The temperature of flue gases at air heater outlet should be Above dew point temperature of flue gases Below dew point temperature of flue gases Less than wet bulb temperature of flue gases 100°C Above dew point temperature of flue gases Below dew point temperature of flue gases Less than wet bulb temperature of flue gases 100°C ANSWER DOWNLOAD EXAMIANS APP
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