Self-Assessment Questions:
Two points, A and B, are established along the same direction from a theodolite station. If the subtended angle read on a subtense bar held at A and B are 0055’20” and 0023’44”, respectively, find the horizontal distance of line A-B.
A traverse line was measured in three sections: 295.85 m at slope 8045’, 149.58 m at slope 4029’ and 373.48 m. at slope 4025’. Determine the horizontal length of the line.
A slope measurement of 545.38 m is made between points A and B. The elevation of A is 424.25 m and that of B is 459.06 m. Determine thehorizontal distance between the two ponts.
The sides of a rectangular parcel of property were measured and recorded as 249.50 m. and 496.85 m. It was determined, however, that the 30-m tape used in measuring was actually 30.05 m long. Determine the correct area of the rectangle in hectares.
A 50-msteel tape is of standard length at 200C. If the coefficient of thermal expansion of steel is 0.0000116/0C, determine the distance to be laid out using this tape to establish two points exactly 1235.65 m apart when the temperature is 330C.
A 50-m invar tape weighing 0.04 kg/m is constantly supported only at its end points, and used to measure a line with a steady pull of 8.5 kg. If the measured length of the line is 2465.18 m. determine the correct length of the line.
References:
1. Elementary Surveying 3rd edition by Juny Pilapil La Putt
2. Surveying by Jack McCormac Et. Al.
3. Surveying Theory and Practice By R.E Davis, F. S. Foote
4. The principles and Practice of Surveying by C. B. Breed; G.L. Hosmer and A. J. Bone
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