Puzzle

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Across
  1. 2. increasing turbine work
  2. 3. work producing device
  3. 8. use for liquid
  4. 10. due to surging
  5. 11. piston used
  6. 13. steam turbine used
  7. 15. increase efficiency
Down
  1. 1. entropy constant
  2. 4. right angle
  3. 5. attack is larger than design angle
  4. 6. net positive suction head
  5. 7. less than vapour pressure
  6. 9. do not have aerofoil blades
  7. 12. increasing kinetic energy
  8. 14. velocity is zero