Which statement is not true for a steam turbine when compared to steam engines?
In an impulse turbine, the blade friction reduces the relative velocity of steam on passing over the blades by about
If nozzle angle is 30°, the De Laval turbine will have a maximum efficiency of
Steam enters a De LavaI steam turbine with an outlet velocity of 25 m/s and leaves with an outlet velocity of 5 m/s. The work done by 1 kg of steam is
A single stage impulse turbine with a diameter of 100 cm runs at 3000 rpm. if the blade speed ratio is 0.45, the inlet velocity will be
For a single stage impulse turbine with nozzle angle 15°, rotor diameter 2 m and speed 3000 rpm, the optimum velocity of steam in m/s is:
[Take cos15° = 0.966, sin15° = 0.258]
For an impulse turbine, the nozzle efficiency is 90%, the blade velocity ratio is 0.5 and the mean blade velocity is 150 m/s. This corresponds to heat drop in the nozzle equal to