Steam Boilers, Engines, Nozzles and Turbines When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be Choked Under-damping None of these Over-damping Choked Under-damping None of these Over-damping ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle. None of these Decreases Increases Remain same None of these Decreases Increases Remain same ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of heat actually used in producing steam to the heat liberated in the furnace None of these Ratio of the heat liberated in the furnace to the heat actually used in producing steam Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of heat actually used in producing steam to the heat liberated in the furnace None of these Ratio of the heat liberated in the furnace to the heat actually used in producing steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Besides mean effective pressure, the data required to determine the indicated power of an engine include Piston diameter, length of stroke and calorific value of fuel Piston diameter, length of stroke and speed of rotation Piston diameter, specific fuel consumption and Calorific value of fuel Specific fuel consumption, speed of rotation and torque Piston diameter, length of stroke and calorific value of fuel Piston diameter, length of stroke and speed of rotation Piston diameter, specific fuel consumption and Calorific value of fuel Specific fuel consumption, speed of rotation and torque ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of flue tube in a Cornish boiler is _________ that of the shell. Three-fifth One-third One-fourth Two-fifth Three-fifth One-third One-fourth Two-fifth ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In designing air preheaters, the important design consideration is that Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point Approach temperature should be as low as possible ANSWER DOWNLOAD EXAMIANS APP
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