Practice Ground Control Points (gcps) (18.7.1) - Aerial Surveying and Mapping

Practice: Ground Control Points (GCPs)

Lesson 18.7.1Aerial Surveying and Mapping

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does GCP stand for?
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Think about what each letter represents.
Question 2.
Why are GCPs important in aerial surveys?
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Consider how we use these points in mapping.
3Question 3.
What is the purpose of GCPs in aerial surveying?
- To collect photographs
- To enhance accuracy
- To reduce costs
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Consider their role in ensuring reliability in measurements.
4Question 4.
True or False: GCPs are only needed for large-scale projects.
- True
- False
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Remember, accuracy is critical in every mapping project.
Question 5.
You are working on a site that requires high accuracy for drone mapping. Your area has variable terrain. Discuss how you would determine the locations of GCPs and justify your reasoning.
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Consider sightlines and areas that can be reliably surveyed.
Question 6.
In a recent survey without GCPs, the resulting map showed significant errors, leading to construction delays. Analyze potential causes of inaccuracies and propose a corrective measure involving GCP implementation.
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Think about how GCPs can correct misalignment.

4 more questions in this section. Enroll free to practise them all.