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 The specific volume of steam with increase in pressure decreases Linearly Inversely Slowly first and then rapidly Rapidly first and then slowly Linearly Inversely Slowly first and then rapidly Rapidly first and then slowly ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Tandem type compound engine, the high pressure and low pressure cylinders Are set in V-arrangement Are set at 90° Have separate piston rods Have common piston rod Are set in V-arrangement Are set at 90° Have separate piston rods Have common piston rod ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are those in which Tubes are laid vertically Flue gases pass through tubes and water around it Forced circulation takes place Water passes through the tubes and flue gases around it Tubes are laid vertically Flue gases pass through tubes and water around it Forced circulation takes place Water passes through the tubes and flue gases around it ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 320/3 m/s 160/3 m/s 640/3 m/s 640 m/s 320/3 m/s 160/3 m/s 640/3 m/s 640 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At critical point, i.e. p=225.65 kg/cm², the latent enthalpy of vaporisation is Depends on temperature also Minimum Zero Maximum Depends on temperature also Minimum Zero Maximum ANSWER DOWNLOAD EXAMIANS APP
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