What is the departure of a line whose bearing is S 32° W and length of 58 m? Select the correct response: -21.14 m -30.74 m -25.42 m -45.21 m

ANSWER KEY: D= 51.8319m∆h= 13.5430mElev Sta. A= 70.8530m

G

Draw a sketch of level rods (as seen from the eyepiece of an engineer's transit) with the following measurements. i. ii. iii. 2.265 m 1.442 m 2.418 m iv. 3.415 m Example:

: If block B weighs 400 lb, block C weighs 100 Ib, the magnitude of the angle e for equilibrium would be 30° B C اخترأحد الخيارات a. 77.5° b. 69.7° C. 73.2 d. 75.7 e. 78.9°

9

An instrument is set-up at point M and vertical angles are observed at N (-21°15') and O (+33°45'). The height of instrument from point M is 1.5865m. The horizontal distance of NM and NO are 35G.2552m and 9GF.5565m respectively. If point O is at elevation 6AE.6453m, a. Determine the elevation of N neglecting the effects of curvature and refraction. b. Determine the elevation of N making due allowance for curvature and refraction.

P.16.15. A thin-walled closed section beam of constant wall thickness t has the cross-section shown in Fig. P.16.15. Assuming that the direct stresses are distributed according to the basic theory of bending, calculate and sketch the shear flow distribution for a vertical shear force S, applied tangentially to the curved part of the beam. Answer: 901 = Sy(1.61 cos 0-0.80)/r Sy 7.3 912= (0.57s² - 1.14rs +0.33²)

a. 34.37 m b. 37.43 m c. 33.74 m d. 37.34 m 32. Compute the chord length from PC to B. a. 84.59 m b. 89.54 m c. 85.49 m d. 89.45 m

Draw a sketch of level rods (as seen from the eyepiece of an engineer's transit) with the following measurements. i. ii. 2.275 m 1.772 m ii. 3.715 m iv. 0.250 m v. 2.718 m Example: DS