Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed Before the superheater Between the economiser and chimney None of these Before the economiser Before the superheater Between the economiser and chimney None of these Before the economiser ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is not a boiler mounting? Feed check valve Economiser Fusible plug Blow off cock Feed check valve Economiser Fusible plug Blow off cock ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a cross-head is to guide motion of the _________ and to prevent it from bending. Valve rod Piston rod Eccentric rod Connecting rod Valve rod Piston rod Eccentric rod Connecting rod ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The mechanical draught _________ with the amount of smoke. Does not effect Decreases Increases None of these Does not effect Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines De-Laval turbines are mostly used For large power purposes For small power purposes and low speeds Where low speeds are required For small power purposes and high speeds For large power purposes For small power purposes and low speeds Where low speeds are required For small power purposes and high speeds ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the work-done on the blades per kg of steam to the total energy supplied per stage per kg of steam is called Blading efficiency Stage efficiency Mechanical efficiency Nozzle efficiency Blading efficiency Stage efficiency Mechanical efficiency Nozzle efficiency ANSWER DOWNLOAD EXAMIANS APP