Which of the following is false regarding factor of safety in the design of structures? a. It considers uncertainties in the material properties. b. A higher factor of safety is preferable in designing safe structures c. It should not be less than 1 to ensure the structure’s safety. d. It considers changes in the loading pattern on the structure. Consider a 1,000-mm long, 25-mm diameter sample subjected to a tension test. Automatic high-precision gages recorded that for an applied load of 150 kN, the sample experienced a longitudinal strain of 2×10−3mm/mm. Assuming that the material remained elastic while loaded, determine its modulus of elasticity. A. 175.0 GPa B. 63.7 GPa C. 152.8 GPa D. 72.9 GPa
Which of the following is false regarding factor of safety in the design of structures? a. It considers uncertainties in the material properties. b. A higher factor of safety is preferable in designing safe structures c. It should not be less than 1 to ensure the structure’s safety. d. It considers changes in the loading pattern on the structure. Consider a 1,000-mm long, 25-mm diameter sample subjected to a tension test. Automatic high-precision gages recorded that for an applied load of 150 kN, the sample experienced a longitudinal strain of 2×10−3mm/mm. Assuming that the material remained elastic while loaded, determine its modulus of elasticity. A. 175.0 GPa B. 63.7 GPa C. 152.8 GPa D. 72.9 GPa
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Which of the following is false regarding factor of safety in the design of structures?
a. It considers uncertainties in the material properties.
b. A higher factor of safety is preferable in designing safe structures
c. It should not be less than 1 to ensure the structure’s safety.
d. It considers changes in the loading pattern on the structure.
Consider a 1,000-mm long, 25-mm diameter sample subjected to a tension test. Automatic high-precision gages recorded that for an applied load of 150 kN, the sample experienced a longitudinal strain of 2×10−3mm/mm. Assuming that the material remained elastic while loaded, determine its modulus of elasticity.
A. 175.0 GPa
B. 63.7 GPa
C. 152.8 GPa
D. 72.9 GPa
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