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 V² cosα Vb = 0.5 V cosα Vb = V² cos α Vb = V cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V² cos α Vb = V cos α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of injector used in small capacity boilers is to Pump water, similar to boiler feed pump Inject chemical solution in feed pump Create vacuum Add make up water in the system Pump water, similar to boiler feed pump Inject chemical solution in feed pump Create vacuum Add make up water in the system ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by V = 2g H' V = H'/2g V = 2gH' V = 2g/H' V = 2g H' V = H'/2g V = 2gH' V = 2g/H' ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The basic job of feed water treatment in boilers is to overcome the problem of All of these Corrosion Carryover Scale All of these Corrosion Carryover Scale ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks 0° to each other 90° to each other None of these 180° to each other 0° to each other 90° to each other None of these 180° to each other ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam in water tube boiler as compared to fire tube boiler Is raised at slower rate Can be raised rapidly Could be raised at fast/slow rate depending on design Is raised at same rate Is raised at slower rate Can be raised rapidly Could be raised at fast/slow rate depending on design Is raised at same rate ANSWER DOWNLOAD EXAMIANS APP
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