A horizontal angle of what should never be less than?

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Multiple Choice

A horizontal angle of what should never be less than?

Explanation:
In this safety scenario, the load on a support line is determined by the angle it makes with the ground. A line that sits too close to the horizontal carries much more tension for the same load, because the vertical support component is smaller as the angle shrinks. Keeping the horizontal angle at least 30 degrees keeps the tension within reasonable limits and helps ensure the anchor and structure remain stable. So the minimum safe horizontal angle is thirty degrees; any smaller angle would require dangerously high tension.

In this safety scenario, the load on a support line is determined by the angle it makes with the ground. A line that sits too close to the horizontal carries much more tension for the same load, because the vertical support component is smaller as the angle shrinks. Keeping the horizontal angle at least 30 degrees keeps the tension within reasonable limits and helps ensure the anchor and structure remain stable. So the minimum safe horizontal angle is thirty degrees; any smaller angle would require dangerously high tension.

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