Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed Before the economiser Before the superheater None of these Between the economiser and chimney Before the economiser Before the superheater None of these Between the economiser and chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Orsat meter is used for Gravimetric analysis of the flue gases Measuring smoke density of flue gases Volumetric analysis of the flue gases Mass flow of the flue gases Gravimetric analysis of the flue gases Measuring smoke density of flue gases Volumetric analysis of the flue gases Mass flow of the flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In fire tube boilers None of these The flames and hot gases pass through the tubes which are surrounded by water Water passes through the tubes which are surrounded by flames and hot gases Forced circulation takes place None of these The flames and hot gases pass through the tubes which are surrounded by water Water passes through the tubes which are surrounded by flames and hot gases Forced circulation takes place ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Expansion ratio is the ratio of Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the volume at cut-off Swept volume to the clearance volume Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the volume at cut-off Swept volume to the clearance volume ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a safety valve is To blow off steam when the pressure of steam inside the boiler exceeds the working pressure To indicate the water level inside the boiler to an observer None of these To measure pressure of steam inside the steam boiler To blow off steam when the pressure of steam inside the boiler exceeds the working pressure To indicate the water level inside the boiler to an observer None of these To measure pressure of steam inside the steam boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = 0.5 V cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V² cosα ANSWER DOWNLOAD EXAMIANS APP
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