Drilling equipments Quiz

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Across
  1. 3. Flexible element that links rotating shafts through interlocking parts
  2. 4. Reducer type using straight teeth for simple power transmission
  3. 7. failure type that occurs without prior warning or prediction
  4. 9. Structural component providing height and working space
  5. 12. Rotates the drill string without using a rotary table
  6. 14. Compact reducer using multiple gears rotating around a center
  7. 16. Material used to seal and isolate formations
  8. 17. System that lifts and lowers the drill string
Down
  1. 1. Unexpected stopping of operation
  2. 2. Repeated stress leading to crack formation
  3. 5. Ability to adapt to different tasks
  4. 6. Toothed wheel that engages with a chain
  5. 8. Moving pulley block that carries the hook load
  6. 10. Device that reduces speed and increases torque
  7. 11. Measure of how long equipment operates before failure
  8. 13. Tool used to isolate zones in a well
  9. 15. Toothed element transferring motion
  10. 18. Device at the top that supports pulley systems and load transfer