In which of the following cases compass surveying is recommended?

Compass surveying is recommended in the following cases:

1. Preliminary Surveys: Compass surveying is used for preliminary surveys where precision is not the main concern. It is used to get a general idea of the layout of the land.

2. Reconnaissance Surveys: This type of survey is used to explore and investigate the characteristics of the land. Compass surveying is useful in this case as it provides a quick and easy way to get a general idea of the land.

3. Small Scale Surveys: Compass surveying is suitable for small scale surveys such as farm surveys, soil conservation surveys, and minor construction projects. It is not suitable for large scale surveys or surveys that require a high degree of accuracy.

4. Rough Terrains: Compass surveying is also recommended in rough terrains where other methods of surveying may be difficult to implement.

5. Forest Surveys: Compass surveying is often used in forest surveys to determine the boundaries of the forest, the location of different types of trees, and other features of the forest.

6. Mining Surveys: In mining, compass surveying is used to determine the direction of the tunnels and the location of the minerals.

Remember, compass surveying is not recommended for high precision works like construction of highways, bridges, etc. where a high degree of accuracy is required.