Q: Using a digital laser level instrument, the following staff readings were observed via an open loop data collection method 1. 2. TBM 1 49.873 m 3. 4. 5. 2.191 2.505 TBM 1 A S1 2.325 B 1.496 3.019 C 2.513 1.752 2.811 S3 11XZZATS TBM 2 3.824 Insert correctly the data onto the calculation table with their remarks, and calculate the reduced levels for each point using the rise and fall method, then answer the following questions What is the R.L value for TBM 2? How many data checking processes are performed for Rise and Fall method? Perform the data checking and find the value. What is the allowable error for this job in millimetres? How many change points were made during the data collection process? TBM 2

Determine: (a) The probable error of the mean in Taping Operation 1. (b) The probable error of the mean in Taping Operation 2. (c) The combined most probable measurement of the frontage, in meters. Answer these questions using this taping scenario. Two surveying tapes were used in measuring the frontage of an open field. The resulting measurements are as follows: Taping Operation 1 Taping Operation 2 300.977m 300.761m 300.415m 300.772m 299.743m 300.776m 299.994m 300.713m

An accidental or compensating error can be eliminated by proper procedures. True False