Steam Boilers, Engines, Nozzles and Turbines The ratio of brake power to the indicated power is known as Brake thermal efficiency Overall efficiency Indicated thermal efficiency Mechanical efficiency Brake thermal efficiency Overall efficiency Indicated thermal efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off governing as compared to throttle governing is More efficient and less economical Less efficient and more economical More efficient and more economical Less efficient and less economical More efficient and less economical Less efficient and more economical More efficient and more economical Less efficient and less economical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed Before the economiser None of these Between the economiser and chimney Before the superheater Before the economiser None of these Between the economiser and chimney Before the superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of superheated tubes in a locomotive boiler is 130 mm 31 mm 230 mm 13 mm 130 mm 31 mm 230 mm 13 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines While steam expands in turbines, theoretically the entropy Decreases Remains constant Increases Behaves unpredictably Decreases Remains constant Increases Behaves unpredictably ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines It is required to produce large amount of steam at low pressure. Which boiler should be used? Cochran boiler Lancashire boiler Pulverized fuel fired boiler Babcock and Wilcox boiler Cochran boiler Lancashire boiler Pulverized fuel fired boiler Babcock and Wilcox boiler ANSWER DOWNLOAD EXAMIANS APP
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