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2 cards from this section. Quick, good the night before a test.
What is a back sight reading?
Think about how it helps us establish the elevation.
What does a rise indicate in levels?
Consider the relationship between two points.
What happens to the staff reading when it's placed at a higher point?
Consider the relationship between height and readings.
True or False: The Rise and Fall method is used exclusively for flat ground.
Think about the method's applications.
You have a benchmark at 50m. If you measure a rise of 4m, followed by a fall of 3m, and then a rise of 2m, what is the final RL?
Keep track of your additions and subtractions systematically.
In a leveling project, you noted the following staff readings at different stations: 2.0m, 5.0m, and 3.0m with a starting RL of 100m. What are the elevations at each of these stations?
Pay careful attention to the differences between readings at each station.
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