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2. To measure a base line, a steel tape 30 m long, standardised at 15° C with a pull of 80 N was used. Find the correction per tape length, if the temperature at the time of measurement is 25° C and the pull exerted is 150 N. Take Young's modulus E = 2 x 10^5 N/mm2 and coefficient of thermal expansion a = 11.2 × 10^-6/°C. Cross-sectional area of tape is 8 mm2.

2. To measure a base line, a steel tape 30 m long, standardised at 15° C with a pull of 80 N was used. Find the correction per tape length, if the temperature at the time of measurement is 25° C and the pull exerted is 150 N. Take Young's modulus E = 2 x 10^5 N/mm2 and coefficient of thermal expansion a = 11.2 × 10^-6/°C. Cross-sectional area of tape is 8 mm2.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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2. To measure a base line, a steel tape 30 m long, standardised at 15° C with a pull of 80 N was used. Find the correction per tape length, if the temperature at the time of measurement is 25° C and the pull exerted is 150 N. Take Young's modulus E = 2 x 10^5 N/mm2 and coefficient of thermal expansion a = 11.2 x 10^-6/°C. Cross-sectional area of tape is 8 mm2.
Transcribed Image Text:2. To measure a base line, a steel tape 30 m long, standardised at 15° C with a pull of 80 N was used. Find the correction per tape length, if the temperature at the time of measurement is 25° C and the pull exerted is 150 N. Take Young's modulus E = 2 x 10^5 N/mm2 and coefficient of thermal expansion a = 11.2 x 10^-6/°C. Cross-sectional area of tape is 8 mm2.
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