1.15.4.c - Focusing
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Practice Questions
Test your understanding with targeted questions
What is the first step in setting up a leveling instrument?
💡 Hint: Think about what keeps the instrument stable.
Why do we adjust the circular bubble during leveling?
💡 Hint: What does the bubble indicate about the instrument's position?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of setting the tripod during leveling?
💡 Hint: Think about stability when measuring.
True or False: Focusing involves only adjusting the objective lens.
💡 Hint: Consider all parts adjusted for clarity.
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Challenge Problems
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During a surveying project, the circular bubble consistently appears slightly off-center. What steps should be taken to ensure the instrument is correctly leveled before taking measurements?
💡 Hint: Consider how you can keep the bubble in the center.
If an observer can’t achieve sharp focus after multiple adjustments, what might be the potential causes, and what recommendations would you provide to resolve the issue?
💡 Hint: Is there a chance the tool isn’t level?
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