The station which is selected close to the main triangulation station to avoid intervening obstruction is known as?

UPPSC State Eng. A.E. 2004 (II), UPPSC Civil Eng. A.E. 2013 (II)

⭕ (a) Satellite station

⭕ (b) False station

⭕ (c) Supplementary station

⭕ (d) Pivot station

Explanation: A pivot station is chosen near a primary triangulation station to bypass an obstacle in the line of sight. This station facilitates continuation of accurate triangulation when a direct line between two main stations is blocked.

The station which is selected close to the main triangulation station to avoid intervening obstruction is known as

In geodetic surveying, sometimes the direct line of sight between two main triangulation stations is blocked by an obstruction such as a building or hill. In such cases, an alternative station is selected close to the main station to bypass the obstruction and maintain accuracy. This station is known as a pivot station.

Key Concepts:

• Used when direct line between triangulation stations is blocked
• Placed close to the main station
• Does not affect the geometry of triangulation

Conclusion:

The correct answer is (d) Pivot station.