Steam Boilers, Engines, Nozzles and Turbines For combustion of a fuel, following is essential Correct fuel air ratio O₂ to support combustion All the three above Proper ignition temperature Correct fuel air ratio O₂ to support combustion All the three above Proper ignition temperature ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler First increases and then decreases Decreases Increases Remain unaffected First increases and then decreases Decreases Increases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are Externally fired Internally as well as externally fired None of these Internally fired Externally fired Internally as well as externally fired None of these Internally fired ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Clearance ratio is the ratio of Clearance volume to the swept volume Swept volume to the clearance volume Clearance volume to the volume at cut-off Volume at cut-off to the swept volume Clearance volume to the swept volume Swept volume to the clearance volume Clearance volume to the volume at cut-off Volume at cut-off to the swept volume ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is More Less May be less or more depending on temperature Equal More Less May be less or more depending on temperature Equal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blades are equiangular and frictionless Blade solidity is 0.65 Blades are equiangular Blade velocity coefficient is unity Blades are equiangular and frictionless Blade solidity is 0.65 Blades are equiangular Blade velocity coefficient is unity ANSWER DOWNLOAD EXAMIANS APP
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