1.15.5.b - Height of Instrument method
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Practice Questions
Test your understanding with targeted questions
What does HI stand for in surveying?
💡 Hint: Think of what gives us the elevation point.
How do you determine the HI?
💡 Hint: Remember, it’s like building upon a known point.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating the Height of Instrument?
💡 Hint: It's about adding the back sight reading.
True or False: The Height of Instrument method includes checks for intermediate elevations.
💡 Hint: Consider the limitations we've talked about.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A surveyor records a benchmark at 75.50m. They measure a BS of 2.75m. If the FS reading at the next station is 1.95m, determine the complete elevation of the point surveyed.
💡 Hint: Use each step of HI properly to find RL.
Explain how making errors in BS measurements can affect the final point RL in the Height of Instrument method.
💡 Hint: Consider the implications of foundational accuracy in surveying.
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