Chain surveying is suitable when the ground surface is more or less leveled.

Chain surveying is a type of surveying method used to measure and map small to medium-sized areas. It involves the use of a chain or tape to measure distances and a compass or theodolite to measure angles. Chain surveying is particularly suitable when the ground surface is more or less leveled.

Advantages of chain surveying in leveled ground:
1. Simplicity: Chain surveying is a simple and straightforward method of surveying. It does not require complex equipment or advanced technical knowledge, making it accessible to a wide range of surveyors.

2. Accuracy: In leveled ground, the accuracy of chain surveying can be maintained reasonably well. The measurements taken with the chain or tape can be precise if the surveyor is careful and the instruments are properly calibrated.

3. Cost-effectiveness: Chain surveying is a cost-effective method as it does not require expensive equipment or advanced technology. The chain or tape used in the survey is relatively inexpensive, making it an affordable option for small-scale surveying projects.

4. Efficiency: In leveled ground, chain surveying can be performed efficiently as there are no significant variations in the ground surface. The surveyor can easily move along a straight line while taking measurements, reducing the time and effort required for the survey.

5. Reliability: Chain surveying is a reliable method when the ground surface is more or less leveled. The measurements taken with the chain or tape can be easily reproduced, providing consistent results.

6. Applicability: Chain surveying is suitable for various types of surveys, such as boundary surveys, topographic surveys, and preliminary surveys. It can be used in different terrains, including leveled ground, agricultural fields, and urban areas.

7. Flexibility: Chain surveying allows for flexibility in terms of the survey layout and data collection. The surveyor can easily change the survey lines or add new points as needed during the survey.

In conclusion, chain surveying is suitable when the ground surface is more or less leveled due to its simplicity, accuracy, cost-effectiveness, efficiency, reliability, applicability, and flexibility. However, it may not be the most suitable method for areas with significant undulations or crowded with many details, as other surveying methods such as theodolite surveying or aerial surveying may be more appropriate in such cases.