WTT Safety Procedures 4

Question 1

A wind turbine technician is working on a gearbox and must drain hot gear oil. Which PPE is specifically required beyond standard PPE?

Accepted Answer

Chemical-resistant gloves and face shield rated for hot liquids

Answer

Hot gear oil poses burn and chemical splash hazards requiring chemical-resistant gloves and a face shield rated for thermal and chemical splash protection.

Question 2

What is the primary purpose of a 'tail rope' during turbine blade lifting operations?

Accepted Answer

To provide ground crew control of blade orientation and prevent uncontrolled rotation

Answer

Tail ropes allow ground personnel to control blade orientation and prevent dangerous uncontrolled spinning during crane lifts.

Question 3

Under OSHA 29 CFR 1910.147 (Control of Hazardous Energy), which energy source requires isolation before nacelle electrical work?

Accepted Answer

All energy sources including electrical, mechanical, hydraulic, pneumatic, and gravitational

Answer

LOTO requires isolation and control of ALL forms of hazardous energy including electrical, mechanical, hydraulic, pneumatic, thermal, and gravitational.

Question 4

A technician working in the nacelle notices the smell of burning insulation. The correct immediate response is to:

Accepted Answer

Initiate emergency shutdown, alert personnel, and evacuate

Answer

Burning insulation odor indicates active electrical failure risk; immediate emergency shutdown and evacuation is required to prevent fire or electrocution.

Question 5

What is the maximum wind speed (in mph) at which most wind turbine OEMs permit exterior climbing or work on the nacelle?

Accepted Answer

25 mph

Answer

Most OEM safety guidelines specify 25 mph (approximately 11 m/s) as the maximum wind speed for exterior nacelle or hub work.

(WTT) Wind Turbine Technician Certification Practice Test

(WTT) Wind Turbine Technician Certification Practice Test

WTT Safety Procedures 4