Steam turbine | Steam turbine Objective Type Questions and answers

11. In an impulse turbine.......

   A.The steam is expanded in nozzles only and there is a pressure drop and heat drop

   B.The steam is expanded both in fixed and moving blades continuously

   C.The steam is expanded in moving blades only

   D.The pressure and temperature of steam remains constant

12. The person's reaction turbine has........

   A.Only moving blades

   B.Only fixed blades

   C.Identical moving and fixed blades

   D.Fixed and moving blades of different shape

13. The stage efficiency (η_s)is given by ( where η_b=blading efficiency and η_n =nozzle efficiency )........

   A.η_b/η_n

   B.η_n/η_b

   C.η_bη_n

   D.η_n/η_b

14. The reheating of steam in a turbine........

   A.Increases the workdone through the turbine

   B.Increases the efficiency of the turbine

   C.Reduces wear on the blades

   D.All of the above

15. The thermal efficiency of a steam turbine is......than that of steam engine

   A.Lower

   A.Higher

   C.Same

   D.None of the above

< 1 2 3 4 >Next Page