A steel tape is standardized at 68°F under a tension of 15 lb when supported at the two ends only, and the distance between the zero mark and the 100-ft mark is 99.972 ft. The total weight of the tape is 2.80 lb and its cross-sectional area is 0.0088 in?. For steel E is 30,000,000 psi. What is the distance between the starting and ending points, when the tape is supported at the two ends only, the tension is 25-lb?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Ex-5.
A steel tape is standardized at 68°F under a tension of 15 lb when supported at
the two ends only, and the distance between the zero mark and the 100-ft mark
is 99.972 ft. The total weight of the tape is 2.80 lb and its cross-sectional area is
0.0088 in2. For steel E is 30,000,000 psi. What is the distance between the
starting and ending points, when the tape is supported at the two ends only, the
tension is 25-lb?
Ex-6.
A steel tape with a cross-sectional area of 0.039 cm²and weighing 0.909 kg has
a length of 30.009 m. when supported throughout 20°C and subject to a
tension of 5.5 kg. This tape is used to measure a distance along a uniform 4%
grade and is supported throughout during the measurement. The tension
applied is 12 kg. The temperature of the tape is 2°C. The measured slope
distance is recorded 381.615 m. What is the corrected horizontal distance?
Alwan Mahdi
Transcribed Image Text:Ex-5. A steel tape is standardized at 68°F under a tension of 15 lb when supported at the two ends only, and the distance between the zero mark and the 100-ft mark is 99.972 ft. The total weight of the tape is 2.80 lb and its cross-sectional area is 0.0088 in2. For steel E is 30,000,000 psi. What is the distance between the starting and ending points, when the tape is supported at the two ends only, the tension is 25-lb? Ex-6. A steel tape with a cross-sectional area of 0.039 cm²and weighing 0.909 kg has a length of 30.009 m. when supported throughout 20°C and subject to a tension of 5.5 kg. This tape is used to measure a distance along a uniform 4% grade and is supported throughout during the measurement. The tension applied is 12 kg. The temperature of the tape is 2°C. The measured slope distance is recorded 381.615 m. What is the corrected horizontal distance? Alwan Mahdi
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