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Q: Which of the following is an obstacle to both ranging and chaining?
  • A. Building
  • B. Hill
  • C. Ground
  • D. River
Correct Answer: Option A - Obstacles in Chaining- Obstacles to chaining prevent chaining from measuring directly between two points and give rise to a set of problems in which distance are found by indirect measurements. Obstacles to chaining are of three kinds- (a) Obstacles to ranging (b) Obstacles to chaining (c) Obstacles to both chaining and ranging– A building is the typical example of this type of obstacle. • The problem lies in prolonging the line beyond the obstacles and determining the distance across it.
A. Obstacles in Chaining- Obstacles to chaining prevent chaining from measuring directly between two points and give rise to a set of problems in which distance are found by indirect measurements. Obstacles to chaining are of three kinds- (a) Obstacles to ranging (b) Obstacles to chaining (c) Obstacles to both chaining and ranging– A building is the typical example of this type of obstacle. • The problem lies in prolonging the line beyond the obstacles and determining the distance across it.

Explanations:

Obstacles in Chaining- Obstacles to chaining prevent chaining from measuring directly between two points and give rise to a set of problems in which distance are found by indirect measurements. Obstacles to chaining are of three kinds- (a) Obstacles to ranging (b) Obstacles to chaining (c) Obstacles to both chaining and ranging– A building is the typical example of this type of obstacle. • The problem lies in prolonging the line beyond the obstacles and determining the distance across it.