Questenaتمرینی که نشان می‌دهد بعد چه چیزی را مرور کنید
سؤال 599

Where should a shock-absorbing lanyard be attached to a tower when working above ground?

  1. Above the climber’s head levelپاسخ درست
  2. To the belt of the fall-arrest harness
  3. Even with the climber's waist
  4. To the next lowest set of guys

توضیح

Anchoring above the climber's head keeps the free fall short, because free fall distance is measured from the anchorage down to the point where the lanyard attaches to the climber. An anchor at waist level or below adds the lanyard length twice over before the energy absorber engages, raising both the arresting force and the risk of striking structure below.

ادامهٔ این آزمون

شروع تمرین
سؤال 599: Where should a shock-absorbing lanyard be attached to a… · FCC Amateur Extra Class (Element 4) · Questena