GEng 111 - General Surveying I Problem Set 2 Please show your complete solution logically and neatly. Use an A4 size bond paper. Preferably handwritten. 1. When measuring a distance AB, the first taping pin was placed 1.0 ft to the right of line AB and the second pin was set 0.5 ft left of line AB. The recorded distance was 236.89 ft. Calculate the corrected distance. (Assume three taped segments, the first two 100 ft each.)

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Chapter2: Loads On Structures
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GEng 111 - General Surveying I
Problem Set 2
Please show your complete solution logically and neatly. Use an A4 size bond paper.
Preferably handwritten.
1. When measuring a distance AB, the first taping pin was placed 1.e ft to the
right of line AB and the second pin was set e.5 ft left of line AB. The recorded
distance was 236.89 ft. Calculate the corrected distance. (Assume three taped
segments, the first two 10e ft each.)
2. A 30-m steel tape measured 29.991 m when standardized fully supported under a
5.500-kg pull at a temperature of 20°C, The tape weighed 1.22 kg and had a cross-
sectional area of 0.016 cm. what is the corrected horizontal length of a recorded
distance AB for the conditions given in below?
Average
Temperature
(C)
Recorded
Tension
Means of
Distance
AB (m)
28.056
16,302
(kg)
Support
Throughout
Ends only
18
8.3
25
7.9
3. Determine the most probable length of a line AB, the standard deviation, and
the 95% error of the measurement for the following series of taped observations
made under the same conditions: 215.382, 215.381, 215.384, 215.374, 215.391,
215.382, 215.374, 215.382, 215.389, and 215.387 m. Explain your result.
4. How do random and systematic errors differ?
5. A 50-m tape is used to measure between two points. The average weight of the
tape per meter is e.320 N. If the measured distance is 48.888 m, with the tape
supported at the ends only and with a tension of 100 N, find the corrected
distance.
6. To verify the constant of a particular prism, a straight 1ine EFG is laid out.
The EDM instrument is first set up at E, with the following measurements
recorded: EG - 426.224 m, EF - 277.301 m. The EDM instrument is then set up at
F, where distance FG is recorded as FG - 148.953 m. Determine the prism constant.
7. The EDM slope distance between two points is 779.154 m, and the vertical angle
is +2°45'30". If the elevation of the instrument station is 98.41 m and the
heights of the EDM is 1.25 m and the target/reflector are all equal to 1.se m,
compute the elevation of the target station and the horizantal distance to that
station.
Transcribed Image Text:GEng 111 - General Surveying I Problem Set 2 Please show your complete solution logically and neatly. Use an A4 size bond paper. Preferably handwritten. 1. When measuring a distance AB, the first taping pin was placed 1.e ft to the right of line AB and the second pin was set e.5 ft left of line AB. The recorded distance was 236.89 ft. Calculate the corrected distance. (Assume three taped segments, the first two 10e ft each.) 2. A 30-m steel tape measured 29.991 m when standardized fully supported under a 5.500-kg pull at a temperature of 20°C, The tape weighed 1.22 kg and had a cross- sectional area of 0.016 cm. what is the corrected horizontal length of a recorded distance AB for the conditions given in below? Average Temperature (C) Recorded Tension Means of Distance AB (m) 28.056 16,302 (kg) Support Throughout Ends only 18 8.3 25 7.9 3. Determine the most probable length of a line AB, the standard deviation, and the 95% error of the measurement for the following series of taped observations made under the same conditions: 215.382, 215.381, 215.384, 215.374, 215.391, 215.382, 215.374, 215.382, 215.389, and 215.387 m. Explain your result. 4. How do random and systematic errors differ? 5. A 50-m tape is used to measure between two points. The average weight of the tape per meter is e.320 N. If the measured distance is 48.888 m, with the tape supported at the ends only and with a tension of 100 N, find the corrected distance. 6. To verify the constant of a particular prism, a straight 1ine EFG is laid out. The EDM instrument is first set up at E, with the following measurements recorded: EG - 426.224 m, EF - 277.301 m. The EDM instrument is then set up at F, where distance FG is recorded as FG - 148.953 m. Determine the prism constant. 7. The EDM slope distance between two points is 779.154 m, and the vertical angle is +2°45'30". If the elevation of the instrument station is 98.41 m and the heights of the EDM is 1.25 m and the target/reflector are all equal to 1.se m, compute the elevation of the target station and the horizantal distance to that station.
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