b) A tape 30m long of standard length a 29°C was used to measure a line the mean temp during measurement was 15°C, the measured distance was 221.65 m, the following being the slopes:

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Chapter2: Loads On Structures
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b) A tape 30m long of standard length a 29°C was used to measure a line the
mean temp during measurement was 15°C, the measured distance was
221.65 m, the following being the slopes:
1°10' for 60 m
2°20' for 30 m
5°18' for 30 m
4°40' for 12 m
1°30' for 30 m
3°48' for 30 m
7°20' for 18 m
1°20' for 11.65 m
Find the true length of the line if the coefficient of expansion is 116 x 107 per 1°C
Transcribed Image Text:b) A tape 30m long of standard length a 29°C was used to measure a line the mean temp during measurement was 15°C, the measured distance was 221.65 m, the following being the slopes: 1°10' for 60 m 2°20' for 30 m 5°18' for 30 m 4°40' for 12 m 1°30' for 30 m 3°48' for 30 m 7°20' for 18 m 1°20' for 11.65 m Find the true length of the line if the coefficient of expansion is 116 x 107 per 1°C
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