Steam Boilers, Engines, Nozzles and Turbines The function of a valve rod is To convert rotary motion of the crankshaft into to and fro motion of the valve rod To convert reciprocating motion of the piston into rotary motion of the crank To provide reciprocating motion to the slide valve To provide simple harmonic motion to the D-slide valve To convert rotary motion of the crankshaft into to and fro motion of the valve rod To convert reciprocating motion of the piston into rotary motion of the crank To provide reciprocating motion to the slide valve To provide simple harmonic motion to the D-slide valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler parameters are expressed by All of these Tonnes/hr. of steam Temperature of steam in °C Pressure of steam in kg/cm² All of these Tonnes/hr. of steam Temperature of steam in °C Pressure of steam in kg/cm² 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
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) cot²α sin²α cos²α tan²α cot²α sin²α cos²α tan²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Caking coals are those which Burn completely Burn freely Form lumps or masses of coke Show little or no fusing action Burn completely Burn freely Form lumps or masses of coke Show little or no fusing action ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For combustion of a fuel, following is essential All the three above Proper ignition temperature O₂ to support combustion Correct fuel air ratio All the three above Proper ignition temperature O₂ to support combustion Correct fuel air ratio ANSWER DOWNLOAD EXAMIANS APP
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