Steam Boilers, Engines, Nozzles and Turbines Duplex feed pumps are used in small steam boilers. These operate on the principle of Gear pump Axial flow pump Centrifugal pump Reciprocating pump Gear pump Axial flow pump Centrifugal pump Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called Receiver type compound engine Woolf type compound engine None of these Tandem type compound engine Receiver type compound engine Woolf type compound engine None of these Tandem type compound engine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameters of fire tubes and superheater tubes in locomotive boiler are 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 24.5 mm, 65 mm 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 Add make up water in the system Create vacuum Pump water, similar to boiler feed pump Inject chemical solution in feed pump Add make up water in the system Create vacuum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be 0.56 0.67 0.4 1.67 0.56 0.67 0.4 1.67 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam in water tube boiler as compared to fire tube boiler 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 Is raised at slower rate ANSWER DOWNLOAD EXAMIANS APP
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