Steam Boilers, Engines, Nozzles and Turbines The fire tubes in a Cochran boiler usually have _________ diameter. 92.5 mm 62.5 mm 6.25 mm 72.5 mm 92.5 mm 62.5 mm 6.25 mm 72.5 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which type of boiler can meet rapid changes of load? Vertical fire tube type Forced circulation type Horizontal fire tube type Horizontal water tube type Vertical fire tube type Forced circulation type Horizontal fire tube type Horizontal water tube type ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The missing quantity per stroke is equal to Cylinder feed indicated mass of steam Mass of cushion steam + cylinder feed Mass of cushion steam + indicated mass of steam Cylinder feed + indicated mass of steam Cylinder feed indicated mass of steam Mass of cushion steam + cylinder feed Mass of cushion steam + indicated mass of steam Cylinder feed + indicated mass of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler Decreases Increases Remain unaffected First increases and then decreases Decreases Increases Remain unaffected First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Willian’s line for the steam engine is a straight line relationship between the steam consumption per hour and Brake power Indicated power Efficiency Pressure of steam Brake power Indicated power Efficiency Pressure of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by 40 to 60% 15 to 25% 10 to 15% 25 to 40% 40 to 60% 15 to 25% 10 to 15% 25 to 40% ANSWER DOWNLOAD EXAMIANS APP
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