Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = V² cos α Vb = 0.5 V cosα Vb = V cos α Vb = 0.5 V² cosα Vb = V² cos α Vb = 0.5 V cosα Vb = V cos α Vb = 0.5 V² cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure compounded impulse turbine. Same Less More None of these Same Less More None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Locomotive type' boiler is Vertical tubular fire tube type Horizontal multi-tubular fire tube type Horizontal multi-tubular water tube boiler Water wall enclosed furnace type Vertical tubular fire tube type Horizontal multi-tubular fire tube type Horizontal multi-tubular water tube boiler Water wall enclosed furnace type ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Sulphur in coal results in Facilitating ash precipitation All of these Spontaneous combustion during coal storage Corroding air heaters Facilitating ash precipitation All of these Spontaneous combustion during coal storage Corroding air heaters ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Proximate analysis of fuel is determination of percentage of Lower calorific value Carbon, hydrogen, nitrogen, sulphur, moisture Higher calorific value Fixed carbon, ash, volatile matter, moisture Lower calorific value Carbon, hydrogen, nitrogen, sulphur, moisture Higher calorific value Fixed carbon, ash, volatile matter, moisture ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the isentropic heat drop to the heat supplied, is called Stage efficiency Rankine efficiency Reheat factor Internal efficiency Stage efficiency Rankine efficiency Reheat factor Internal efficiency ANSWER DOWNLOAD EXAMIANS APP
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