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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is EDM and how does it work?
💡 Hint: Think about how sound travels.
Question 2
Easy
Why do we need to correct for the heights of instruments?
💡 Hint: Consider the physical positions of the EDM and the reflector.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does EDM stand for?
💡 Hint: Think about the purpose of EDM.
Question 2
True or False: The vertical angle is not important when calculating horizontal distance.
💡 Hint: Reflect on the role of angles in trigonometry.
Solve and get performance evaluation
Push your limits with challenges.
Question 1
A surveyor measures a slope of 1000 m at a height of 3 m and has a vertical angle of 7°. Calculate the horizontal distance.
💡 Hint: Use a scientific calculator for trig functions.
Question 2
If an EDM measures a distance of 500 m at a height of 1.5 m above ground, what is the horizontal distance when the vertical angle is 2°?
💡 Hint: First calculate the cosine, then adjust for height.
Challenge and get performance evaluation