Steam Boilers, Engines, Nozzles and Turbines For maximum discharge through a chimney, the condition is that height of hot gas column producing the draught should be One-half the height of chimney Two times the height of chimney Four times the height of chimney Equal to the height of chimney One-half the height of chimney Two times the height of chimney Four times the height of chimney Equal to the height of chimney ANSWER DOWNLOAD EXAMIANS APP
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 Lancashire boiler is used where working pressure and power required are Moderate None of these Low High Moderate None of these Low High ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In water wall furnace, the heat is transferred to the water walls by Conduction Convection Radiation and conduction Radiation Conduction Convection Radiation and conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The mechanical draught _________ with the amount of smoke. Does not effect Increases None of these Decreases Does not effect Increases None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for a compound steam engine? The temperature range per cylinder is increased, with corresponding increase in condensation The ratio of expansion is reduced, thus reducing the length of stroke The forces in the working parts are increased as the forces are distributed over more parts The cost of the engine, for the same power and economy, is more than that of a simple steam engine The temperature range per cylinder is increased, with corresponding increase in condensation The ratio of expansion is reduced, thus reducing the length of stroke The forces in the working parts are increased as the forces are distributed over more parts The cost of the engine, for the same power and economy, is more than that of a simple steam engine ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS