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Question

Difficulty: EasyDirect Fact Retrieval

Read the passage and fill in the blank with the exact factual detail stated in the text.

Answer:Tactical field communication teams deploy ruggedized fiber-optic cable assemblies to establish high-speed data links between command posts. When laying cable across unimproved terrain, technicians must ensure the cable bend radius never falls below 2 inches under tension to prevent micro-fracturing of the internal glass core. In addition, cable segments crossing designated vehicle pathways must be enclosed within heavy-duty rubber protective ramps. Routine signal continuity checks are performed using an optical time-domain reflectometer before activating the network.

According to the passage, to prevent micro-fracturing of the glass core, technicians must ensure the cable bend radius under tension does not fall below 【2 inches】.

Answer

2 inches (or two inches)
The text explicitly states that technicians must maintain a cable bend radius of at least 2 inches under tension to prevent micro-fracturing of the internal glass core.

Step-by-Step Solution

1
Scan the passage for keywords from the prompt: 'micro-fracturing', 'glass core', and 'bend radius'.
Located the sentence: 'When laying cable across unimproved terrain, technicians must ensure the cable bend radius never falls below 2 inches under tension to prevent micro-fracturing of the internal glass core.'
Direct fact retrieval requires locating the exact sentence addressing the condition specified in the prompt.
2
Extract the specific measurement stated directly before the condition.
Identified the minimum bend radius as '2 inches'.
The text directly provides '2 inches' as the explicit threshold required to prevent damage.

Key Concept

Direct Fact Retrieval
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Direct Fact Retrieval

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