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Difficulty: MediumSafety Warnings, Prohibitions, and Constraints

During an audio safety briefing for visitors at a cloud forest canopy reserve, the park ranger announces:

"Attention visitors: Before stepping onto the canopy suspension bridges, ensure your safety harnesses are securely fastened to the continuous safety cable. While traversing the span, walking in single file is mandatory at all times. Under no circumstances may visitors lean over the safety netting, stop to set up tripods on the walkway, or run across the platform. If heavy wind gusts exceed safety thresholds, immediately proceed to the nearest observation tower and wait for ranger assistance."

According to the safety announcement, which of the following actions is strictly prohibited while on the suspension bridge?

  1. A
    Proceeding directly to the nearest observation tower during high wind conditions
  2. B
    Walking in single file along the suspension walkway behind other visitors
  3. Setting up photography tripods directly on the pedestrian walkwayAnswer
  4. D
    Fastening safety harnesses to the continuous safety cable prior to crossing

Answer

Setting up photography tripods directly on the pedestrian walkway
The safety announcement uses the negative constraint phrase 'Under no circumstances may visitors...' to introduce three specific prohibitions: leaning over the netting, stopping to set up tripods on the walkway, and running. Therefore, setting up photography tripods on the walkway is explicitly forbidden.

Step-by-Step Solution

1
Analyze the prompt to identify phrases expressing explicit prohibitions and restrictions.
The phrase 'Under no circumstances may visitors...' signals negative constraints and strictly forbidden behaviors.
Prohibitions in instructional listening passages are marked by restrictive negative phrases.
2
Isolate the specific actions listed under the prohibition clause in the transcript.
The prohibited actions are: leaning over safety netting, setting up tripods on the walkway, and running across the platform.
Distinguishing explicit prohibitions from mandatory guidelines prevents confusing required actions with prohibited ones.
3
Match the extracted prohibited actions to the corresponding option.
Setting up photography tripods on the walkway directly corresponds to the prohibited action identified in the audio.
This confirms the correct choice while eliminating required procedural steps.

Key Concept

Identifying Prohibitions and Negative Constraints in Spoken Safety Instructions
Estimated Time:1m 0s
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Topics

Safety Warnings, Prohibitions, and Constraints

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