Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called Mechanical efficiency Blading efficiency Nozzle efficiency Gross or stage efficiency Mechanical efficiency Blading efficiency Nozzle efficiency Gross or stage efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by V = 2g/H' V = 2gH' V = H'/2g V = 2g H' V = 2g/H' V = 2gH' V = H'/2g V = 2g H' ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure. Lower than Higher than None of these Equal to Lower than Higher than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Ultimate analysis of fuel is determination of percentage of Carbon, hydrogen, nitrogen, sulphur, moisture Lower calorific value Higher calorific value Fixed carbon, ash, volatile matter, moisture Carbon, hydrogen, nitrogen, sulphur, moisture Lower calorific value Higher calorific value Fixed carbon, ash, volatile matter, moisture ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the moving blades, Pressure and velocity both increases Pressure decreases while velocity increases Pressure and velocity both decreases Pressure increases while velocity decreases Pressure and velocity both increases Pressure decreases while velocity increases Pressure and velocity both decreases Pressure increases while velocity decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The rate of discharge through the nozzle ___ when the exit pressure is gradually reduced. None of the listed here Remains same Increases Decreases None of the listed here Remains same Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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