A 20-foot or lesser height with a hinge base means handholes are not required. Which option matches this height?

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Multiple Choice

A 20-foot or lesser height with a hinge base means handholes are not required. Which option matches this height?

Explanation:
The important idea is that handholes aren’t required when the height with a hinge base stays within a defined maximum. The option that matches that maximum height satisfies the condition and thus is the correct choice. The other options represent heights above the allowed limit, which would require a handhole.

The important idea is that handholes aren’t required when the height with a hinge base stays within a defined maximum. The option that matches that maximum height satisfies the condition and thus is the correct choice. The other options represent heights above the allowed limit, which would require a handhole.

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