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. at a mean temperature of 35°C. Tape used is of standard length at 20°C under a pull of 5 kg. Cross- sectional area of tape is 0.03 sq.cm., Coefficient of thermal expansion is 0.0000116/°C, Modulus of elasticity of tape is 2x10^10 kg/m2. a. Solve for error due to tension. b. Solve for error due to temperature. c. Determine the corrected length of the line.
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. at a mean temperature of 35°C. Tape used is of standard length at 20°C under a pull of 5 kg. Cross- sectional area of tape is 0.03 sq.cm., Coefficient of thermal expansion is 0.0000116/°C, Modulus of elasticity of tape is 2x10^10 kg/m2. a. Solve for error due to tension. b. Solve for error due to temperature. c. Determine the corrected length of the line.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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. at a mean temperature of
35°C. Tape used is of standard length at 20°C under a pull of 5 kg. Cross-
sectional area of tape is 0.03 sq.cm., Coefficient of thermal expansion is
0.0000116/°C, Modulus of elasticity of tape is 2x10^10 kg/m2.
a. Solve for error due to tension.
b. Solve for error due to temperature.
c. Determine the corrected length of the line.
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