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 The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades. 15 to 20% 10 to 15% 30 to 40% 20 to 30% 15 to 20% 10 to 15% 30 to 40% 20 to 30% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines During storage, the heating value of coal Increases May increase or decrease depending upon the method of storage Decreases Remain constant Increases May increase or decrease depending upon the method of storage Decreases Remain constant ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at Atmospheric temperature 700-850°C 500-600°C 950-1100°C Atmospheric temperature 700-850°C 500-600°C 950-1100°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Relative percentage of heat absorbed through the heat transfer of (i) Furnace water wall (ii) Boiler tank (iii) Superheater (iv) Economizer (v) Air-heater of a typical boiler of 200 MW capacity would be of the order of 20 : 48 : 7 : 15 : 10 7 : 15 : 20 : 10 : 48 10 : 7 : 15 : 20 : 48 48 : 20 : 15 : 7 : 10 20 : 48 : 7 : 15 : 10 7 : 15 : 20 : 10 : 48 10 : 7 : 15 : 20 : 48 48 : 20 : 15 : 7 : 10 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of bleeding is that Boiler is supplied with hot water All of these It decreases the power developed by the turbine It increases the thermodynamic efficiency of the turbine Boiler is supplied with hot water All of these It decreases the power developed by the turbine It increases the thermodynamic efficiency of the turbine ANSWER DOWNLOAD EXAMIANS APP
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