Engr. Sova Ho used 30m length of tape in measuring a distance line. The measured length of the line was recorded to be 454.62 m. During the measurement the temperature reading was 11 oC and the tape was supported at both ends.  The cross sectional area of the tape is 6.50mm2 and the modulus of elasticity is 200 GPa. The tape has a weight of 0.075 kg/m. K= 11.6 x10-6 m/c.  If the engineer determined the Temperature correction, Pull correction, and Sag Correction lengths to be 1,640.01 μm, 588μm, and  1.71 mm respectively, per segment.  Calculate the applied Pull  of the 30m tape in kg.

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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.