Consider the following statements with regard to steam turbines:
Answers:
(1) A single stage impulse turbine has a nozzle angle a . The maximum blade efficiency of the turbine will be cos2 a
(2) For a reaction steam turbine with identical stator and rotor blades, the blade velocity for maximum blade efficiency is equal to inlet steam velocity
(3) Velocity compounded impulse steam turbine gives less speed and less efficiency Which of the above statements are correct?
(a) 1 and 2 only (b) 1 and 3 only
(c) 2 and 3 only (d) 1, 2 and 3