Steam Boilers, Engines, Nozzles and Turbines For combustion of a fuel, following is essential All the three above O₂ to support combustion Correct fuel air ratio Proper ignition temperature All the three above O₂ to support combustion Correct fuel air ratio Proper ignition temperature ANSWER DOWNLOAD EXAMIANS APP
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 Four times the height of chimney One-half the height of chimney Equal to the height of chimney Two times the height of chimney Four times the height of chimney One-half the height of chimney Equal to the height of chimney Two times the height of chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The Locomotive boiler has 137 fire tubes and 44 superheated tubes 157 fire tubes and 24 superheated tubes 147 fire tubes and 34 superheated tubes 167 fire tubes and 14 superheated tubes 137 fire tubes and 44 superheated tubes 157 fire tubes and 24 superheated tubes 147 fire tubes and 34 superheated tubes 167 fire tubes and 14 superheated tubes ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by 25 to 40% 40 to 60% 15 to 25% 10 to 15% 25 to 40% 40 to 60% 15 to 25% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The cylinder condensation or missing quantity may be reduced by The efficient steam jacketing of the cylinder walls Superheating the steam supplied to the engine cylinder All of these Keeping the expansion ratio small in each cylinder The efficient steam jacketing of the cylinder walls Superheating the steam supplied to the engine cylinder All of these Keeping the expansion ratio small in each cylinder ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by Horizontal straight line Straight inclined line Curved line Vertical straight line Horizontal straight line Straight inclined line Curved line Vertical straight line ANSWER DOWNLOAD EXAMIANS APP
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