Steam Boilers, Engines, Nozzles and Turbines A fusible plug is fitted in small boilers in order to Avoid excessive build up of pressure Control steam dome Extinguish fire if water level in the boiler falls below alarming limit Avoid explosion Avoid excessive build up of pressure Control steam dome Extinguish fire if water level in the boiler falls below alarming limit Avoid explosion 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 7 : 15 : 20 : 10 : 48 48 : 20 : 15 : 7 : 10 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 7 : 15 : 20 : 10 : 48 48 : 20 : 15 : 7 : 10 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a boiler, the heat is lost In moisture present in the fuel All of these To steam formed by combustion of hydrogen per kg of fuel To dry flue gases In moisture present in the fuel All of these To steam formed by combustion of hydrogen per kg of fuel To dry flue gases 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 100°C Less than wet bulb temperature of flue gases Below dew point temperature of flue gases Above dew point temperature of flue gases 100°C Less than wet bulb temperature of flue gases Below dew point temperature of flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of Cornish boiler varies from 2 to 3 m 1 to 2 m 1.25 to 2.5 m 0.5 to 1 m 2 to 3 m 1 to 2 m 1.25 to 2.5 m 0.5 to 1 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The water tubes in a simple vertical boiler are Vertical Horizontal None of the listed here Inclined Vertical Horizontal None of the listed here Inclined ANSWER DOWNLOAD EXAMIANS APP
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