Practice Measurement Of Levels (1.15) - Measurement of Levels - Surveying and Geomatics

Practice: Measurement of Levels

Lesson 1.15Measurement of Levels

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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.
Define levelling in surveying.
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Think about what measuring height means in that context.
Question 2.
What does BM stand for in levelling?
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Consider the reference point's importance in measurements.
3Question 3.
What is the primary purpose of levelling?
- To measure horizontal distances
- To determine elevation of points
- To plot maps
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Think about the relationship between different elevations.
4Question 4.
True or False: Mean Sea Level is a reference used in some levelling work.
- True
- False
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Recall the definitions we've discussed.
Question 5.
If a bench mark is at 150m and a back sight reading from the BM is 1.2m, how would you calculate the reduced level of a point with a fore sight reading of 0.8m?
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Use the formula for the Height of Instrument and back calculate.
Question 6.
You take a series of staff readings: BS = 1.6m, FS = 0.9m. What is the rise or fall? Following that, if you had another reading: BS = 2.0m, FS = 1.5m, how would you summarize the level changes?
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Make sure you keep track of each change in a journal; it will help in visualizing your data.

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