Steam Boilers, Engines, Nozzles and Turbines The number of water level indicators in a boiler are generally __________ in number. One Four Three Two One Four Three Two ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as Superheater Blow off cock Stop valve Fusible plug Superheater Blow off cock Stop valve Fusible plug ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an impulse reaction turbine, the pressure drops gradually and continuously over Both fixed and moving blades None of these Moving blades Fixed blades Both fixed and moving blades None of these Moving blades Fixed blades 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 Mechanical efficiency Stage efficiency Nozzle efficiency Blading efficiency Mechanical efficiency Stage efficiency Nozzle efficiency Blading efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Stage efficiency is also known as Gross efficiency None of these Nozzle efficiency Diagram efficiency Gross efficiency None of these Nozzle efficiency Diagram efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and α = Nozzle angle) Vb = V cosα Vb = 0.5 V² cosα Vb = V² cosα Vb = 0.5 V cosα Vb = V cosα Vb = 0.5 V² cosα Vb = V² cosα Vb = 0.5 V cosα ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS