## Problem 916 | Combined Axial and Bending

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## Problem 915 | Combined Axial and Bending

**Problem 915**

For the structure in Problem 914, compute the maximum tensile stress developed in bar *CB*.

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## Problem 914 | Combined Axial and Bending

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## Problem 913 | Combined Axial and Bending

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## Problem 912 | Combined Axial and Bending

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## Problem 911 | Combined Axial and Bending

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## Length of Parabolic Sag Curve with Given Change in Grade Per Station

**Problem**

A grade of -5% is followed by a grade of 1%, the grades intersecting at the vertex (Sta. 10 + 060). The change of grade is restricted to 0.4% in 20 m. Compute the length of the vertical parabolic sag curve in meters.

A. 360 m | C. 300 m |

B. 320 m | D. 340 m |

## Cross-Sectional Dimensions of Steel Rod to Elongate 1-mm when Subjected to 8,000 kg of Tension Force

**Problem**

A tensile load of 8000 kg elongates a 1-m long square rod by 1 mm. Steel modulus of elasticity is 2 × 10^{6} kg/cm^{2}. What is the dimension of a side of the rod?

A. 5 cm | C. 2 cm |

B. 1 cm | D. 4 cm |