Steam Boilers, Engines, Nozzles and Turbines The size of a boiler drum in pulverized fuel fired boiler, as its size and capacity, (steam pressure and flow ratings) increase Remains unchanged Decreases Increases/decreases depending on steam temperature requirements Increases Remains unchanged Decreases Increases/decreases depending on steam temperature requirements Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In cross compounding, the cylinders are arranged Side by side and each cylinder has separate piston, connecting rod and crank At 90° and each cylinder has common piston, connecting rod and crank At 90° and each cylinder has separate piston, connecting rod and crank Side by side and each cylinder has common piston, connecting rod and crank Side by side and each cylinder has separate piston, connecting rod and crank At 90° and each cylinder has common piston, connecting rod and crank At 90° and each cylinder has separate piston, connecting rod and crank Side by side and each cylinder has common piston, connecting rod and crank ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diagram efficiency is the ratio of None of these Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam None of these Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has Less heating surface More heating surface Heating surface depends on other parameters Equal heating surface Less heating surface More heating surface Heating surface depends on other parameters Equal heating surface ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value 1 – moisture content (1 + moisture content) 1 + moisture content (1- moisture content) 1 – moisture content (1 + moisture content) 1 + moisture content (1- moisture content) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Feed water conditioning in thermal power plants in done to Increase heat transfer rate Increase efficiency of thermal power plant Increase steam parameters Reduce hardness and for removal of solids Increase heat transfer rate Increase efficiency of thermal power plant Increase steam parameters Reduce hardness and for removal of solids ANSWER DOWNLOAD EXAMIANS APP
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