Steam Boilers, Engines, Nozzles and Turbines The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle) V = 44.72 hd K V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The steam enters the nozzle at a High pressure and a high velocity Low pressure and a low velocity High pressure and a low velocity Low pressure and a high velocity High pressure and a high velocity Low pressure and a low velocity High pressure and a low velocity Low pressure and a high velocity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diagram efficiency is the ratio of None of these Workdone on the blades to the energy supplied to the blades Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam 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 to the energy supplied to the blades Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam 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 Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor) pa = pm/K pa = pm + K pa = pm × K pa = K/pm pa = pm/K pa = pm + K pa = pm × K pa = K/pm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The feed check valve is used in order to Check level of water in boiler drum Regulate flow of boiler water Recirculate unwanted feed water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Check level of water in boiler drum Regulate flow of boiler water Recirculate unwanted feed water Allow high pressure feed water to flow to drum and not allow reverse flow to take place ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of Cornish boiler is of the order of 35 m 79 m 57.5 m 24 m 35 m 79 m 57.5 m 24 m ANSWER DOWNLOAD EXAMIANS APP
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