Combined Corrections
A Civil Engineer used a 100-m tape which is of standard length at 32ºC is measuring a certain distance and found out that the length of the tape has different lengths at different tensions we applied as shown.
a. What tension must be applied to the tape at 32 ºC so that it would be of standard length?
b. What tension must be applied to the tape at 40.6 ºC so that it would be of standard length?
A line was determined to be 2395.25 m when measured with a 30-m steel tape supported throughout its length under a pull of 4 kg and at a mean temperature of 35℃. Determine the correct length of the line if the tape used is of standard length at 20℃ under a pull of 5 kg. The cross-sectional area of the tape is 0.03 sq. cm, its coefficient of linear thermal expansion is 0.0000116/℃, and the modulus of elasticity of steel is 2.0×10^6 𝑘𝑔/𝑐𝑚^2.