Hydraulic Machines Multiple Choice Questions and Answers

21. A draft tube is used with .......

   A.Impulse turbine

   B.Pelton wheel turbine

   C.Reaction turbine

   D.Very high specific speed turbine

22. The angle of taper on draft tube is .......

   A.Greater than 15°

   B.Greater than 8°

   C.Greater than 5°

   D.Less than 8°

23. Specific speed of a turbine depends upon .........

   A.Speed,power and discharge

   B.Discharge and power

   C.Speed and heat

   D.Speed,discharge and heat

   D.Speed, power and heat

24. An impulse turbine......

   A.Operates submerged

   B.Requires draft tube

   C.Is most suited for low head application

   D.Operates by initial complete conversion to kinetic energy

25. Pelton wheels are used for minimum of following heads......

   A.20 m

   B.100 m

   C.125 m

   D.180 m or above

< 1 2 3 4 5 6 7 8 9 10 Next>