What is the length of the Second Order Accuracy Survey Control Monument?

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Multiple Choice

What is the length of the Second Order Accuracy Survey Control Monument?

The length is set to 120 cm to meet the standard specification for a Second Order Accuracy Survey Control Monument, ensuring durability, stability, and ease of re-establishment. A longer monument provides enough embedded portion and above-ground height for a stable foundation, better protection against disturbance, and clear visibility for future surveys. Shorter lengths do not meet the mandated size for this order and can compromise long-term accuracy and legibility, which is why 120 cm is the correct choice.

The length is set to 120 cm to meet the standard specification for a Second Order Accuracy Survey Control Monument, ensuring durability, stability, and ease of re-establishment. A longer monument provides enough embedded portion and above-ground height for a stable foundation, better protection against disturbance, and clear visibility for future surveys. Shorter lengths do not meet the mandated size for this order and can compromise long-term accuracy and legibility, which is why 120 cm is the correct choice.

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