WTT Cheat Sheet 2026

The 30 highest-yield WTT facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What does WLL stand for in the context of rigging equipment? → Working Load Limit
2. What is the purpose of grounding electrical systems in wind turbines? → To safely dissipate any excess electrical energy.
3. In Blade Inspection & Maintenance, what is the FIRST step a WTT professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
4. What is the PRIMARY purpose of continuing education requirements in Mechanical Systems & Drivetrain for WTT professionals? → Maintaining current knowledge and competency as the field evolves
5. What is the minimum D/d ratio typically required for a wire rope sling when it is bent around a pin or lifting point? → 5:1
6. What is the PRIMARY purpose of continuing education requirements in Electrical Systems & Power Generation for WTT professionals? → Maintaining current knowledge and competency as the field evolves
7. What condition requires a synthetic web sling to be immediately removed from service? → Acid or caustic burns, melting, or charring of fibers
8. When a conflict arises between standard procedures and a unique situation in Wind Turbine Components & Design, what should a WTT professional prioritize? → Safety and ethical obligations while seeking expert consultation
9. When a conflict arises between standard procedures and a unique situation in Mechanical Systems & Drivetrain, what should a WTT professional prioritize? → Safety and ethical obligations while seeking expert consultation
10. When a conflict arises between standard procedures and a unique situation in Control Systems & SCADA, what should a WTT professional prioritize? → Safety and ethical obligations while seeking expert consultation
11. What is the role of the turbine blades in the mechanical system? → To capture wind energy and convert it into mechanical energy.
12. What is the primary purpose of a fall protection system in wind turbine operations? → To secure workers from falling when working at heights.
13. What is the role of the pitch control system in wind turbines? → To change the angle of the blades to control rotor speed.
14. When inspecting wire rope, what is the typical maximum allowable number of broken wires in one rope lay length before it must be removed from service? → 6 broken wires in one rope lay
15. What is the PRIMARY purpose of continuing education requirements in Hydraulic & Lubrication Systems for WTT professionals? → Maintaining current knowledge and competency as the field evolves
16. In Hydraulic & Lubrication Systems, what is the FIRST step a WTT professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
17. When hoisting a wind turbine blade, what is the primary function of a tag line attached to the load? → To control rotation and prevent the load from swinging into structures
18. Which mechanical component allows the blades of a wind turbine to adjust their angle? → Pitch control system
19. What is the PRIMARY purpose of continuing education requirements in Tower Climbing & Rescue Safety for WTT professionals? → Maintaining current knowledge and competency as the field evolves
20. In Mechanical Systems & Drivetrain, what is the FIRST step a WTT professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
21. What is the purpose of a transformer in a wind turbine electrical system? → To adjust voltage for grid compatibility.
22. What is the ASME standard that governs the design, construction, and use of below-the-hook lifting devices used on wind turbine components? → ASME B30.20
23. When a conflict arises between standard procedures and a unique situation in Preventive Maintenance Procedures, what should a WTT professional prioritize? → Safety and ethical obligations while seeking expert consultation
24. What is the purpose of a shackle's safety pin or bolt when used in a lifting application? → It secures the screw pin and prevents it from backing out under load
25. What is the PRIMARY purpose of continuing education requirements in Control Systems & SCADA for WTT professionals? → Maintaining current knowledge and competency as the field evolves
26. How should the electrical wiring in wind turbines be maintained? → Check for corrosion, loose connections, and replace damaged wires.
27. What is a common issue when a wind turbine’s generator fails to start? → Electrical issues such as tripped breakers or wiring faults.
28. Which standard of practice is MOST important for ensuring quality in Control Systems & SCADA? → Following evidence-based protocols while adapting to specific circumstances
29. In Control Systems & SCADA, what is the FIRST step a WTT professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
30. How often should you conduct maintenance on the turbine’s mechanical systems? → As recommended by the manufacturer, typically every 6 to 12 months.