Steam Boilers, Engines, Nozzles and Turbines The safety valve on boiler drum compared to safety valve on superheater is set at Lower value Same value Lower/higher depending on steam flow Higher value Lower value Same value Lower/higher depending on steam flow Higher value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Maximum energy loss in a boiler occurs due to Unburnt carbon in ash Flue gases Ash content Incomplete combustion Unburnt carbon in ash Flue gases Ash content Incomplete combustion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Stoichiometric quantity of air is the Air present in atmosphere at NTP conditions Air required to convert CO into CO₂ Air required for complete combustion of fuel with no excess air Air required for optimum combustion so as to have reasonable excess air Air present in atmosphere at NTP conditions Air required to convert CO into CO₂ Air required for complete combustion of fuel with no excess air Air required for optimum combustion so as to have reasonable excess air ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called Induced draught Natural draught Forced draught Balanced draught Induced draught Natural draught Forced draught Balanced draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Locomotive boiler is a Single tube, horizontal, internally fired and stationary boiler Multi-tubular, horizontal, internally fired and mobile boiler Multi-tubular, horizontal, externally fired and stationary boiler Single tube, vertical, externally fired and stationary boiler Single tube, horizontal, internally fired and stationary boiler Multi-tubular, horizontal, internally fired and mobile boiler Multi-tubular, horizontal, externally fired and stationary boiler Single tube, vertical, externally fired and stationary boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameters of fire tubes and superheater tubes in locomotive boiler are 24.5 mm, 65 mm 65.5 mm, 210 mm 47.5 mm, 130 mm 32.5 mm, 180 mm 24.5 mm, 65 mm 65.5 mm, 210 mm 47.5 mm, 130 mm 32.5 mm, 180 mm ANSWER DOWNLOAD EXAMIANS APP