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RopeLab Quiz 5: Energy Absorbing Lanyards

Richard Delaney November 12, 2015 Free content, Quick Quizzes No Comments

This quiz presents five short questions looking at the result of various configurations of energy absorbing lanyards.  Energy absorbing lanyards and energy absorbing shock-packs behave differently in systems depending on where and how they are used.

All five questions refer to the following image.

DISCLAIMER:  Always refer to, and ensure that your use is consistent with manufacturer documentation.  Most of the configurations shown below are inappropriate for worker protection and are certainly outside the use specified by manufacturers.

1. 
Question 1: Single Unit at Load

What should be the theoretical peak force experienced by the load with this configuration?

EnergyAbsQuiz1

Deselect Answer

2. 
Question 2: Two Units in Series

What should be the theoretical peak force experienced by the load with this configuration?

EnergyAbsQuiz2

Deselect Answer

3. 
Question 3: Parallel Units at Load

What should be the theoretical peak force experienced by the load with this configuration?

EnergyAbsQuiz3

Deselect Answer

4. 
Question 4: Parallel Units at Load and Single at Anchor

What should be the theoretical peak force experienced by the load with this configuration?
EnergyAbsQuiz4

Deselect Answer

5. 
Question 5: Single Units at Load and Anchor with Lanyard

What should be the theoretical peak force experienced by the load with this configuration?

EnergyAbsQuiz5

Deselect Answer

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About The Author

Richard Delaney

Richard Delaney has worked professionally with ropes since 1992 as a multi-pitch rock-climbing instructor, technical rescue instructor and rope access technician. Understanding and teaching the Physics of Rigging is a core passion of Richard’s, one based on his experience, and his prior professional life as a qualified engineer.

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