Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηB × ηN ηS = ηB / ηN None of the listed here ηS = ηN / ηB ηS = ηB × ηN ηS = ηB / ηN None of the listed here ηS = ηN / ηB ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of flue tube in a Cornish boiler is _________ that of the shell. One-third Two-fifth Three-fifth One-fourth One-third Two-fifth Three-fifth One-fourth ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The numbers of fire tubes in a Cochran boiler are 225 75 165 115 225 75 165 115 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse reaction turbine has its driving force None of the listed here As an impulsive force Partly as an impulsive force and partly as a reaction force As a reaction force None of the listed here As an impulsive force Partly as an impulsive force and partly as a reaction force As a reaction force ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The flow of steam is supersonic In the convergent portion of the nozzle At the throat of the nozzle In the divergent portion of the nozzle At the entrance to the nozzle In the convergent portion of the nozzle At the throat of the nozzle In the divergent portion of the nozzle At the entrance to the nozzle ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called Woolf type compound engine Both (A) and (B) Receiver type compound engine Tandem type compound engine Woolf type compound engine Both (A) and (B) Receiver type compound engine Tandem type compound engine ANSWER DOWNLOAD EXAMIANS APP
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