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LINE BEARING AB 100⁰ BC 140⁰ CD 237⁰ DE 270⁰ EF 357⁰ FA 28⁰ Base on the close traverse data given, sketch the traverse and calculate all the internal angle for this traverse. Base on the figure 1 and the data given, calculate all the internal angle for this traverse. Check value for each bearing to get right value Angle y = Not right value, to get right value Angle y = ( ) = PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 2ħ CHAPTER 1: BEARING AND ANGLE Calculate angle θ 1 = 360⁰ - 289⁰ = 70⁰ Calculate angle θ 2 = 49⁰ Angle y = θ 1 + θ 2 = 70⁰ ⁰ = 120⁰ PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 3Ĩ CHAPTER 1: BEARING AND ANGLE Angle y = ( ) = Angle y = ( ) = Angle y = ( )+ ( ) = Angle y = ( ) = Angle y = ( ) = Angle y = PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 4ĩ CHAPTER 1: BEARING AND ANGLE CALCULATE BEARING Base on following diagram, calculate bearing for line x to q Note :- To calculate bearing Check bearing if clockwise = bearing + angle anticlockwise = bearing - angle Example 1 Clockwise, so to calculate bearing = given bearing + angle Bearing x to q = Example 2 Anticlockwise, so to calculate bearing = given bearing - angle Bearing x to q = PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 5ġ0 CHAPTER 1: BEARING AND ANGLE Example 3 Calculate angle θ 1 = 360⁰ - 299⁰ = 60⁰ Bearing xq = 105⁰ ⁰ = 45⁰ PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 6ġ1 CHAPTER 1: BEARING AND ANGLE EXAMPLE 4 Bearing x to q = Bearing x to q = ( ) = Bearing x to q = ( ) = Bearing x to q = ( ) = Bearing x to q = ( ) = Bearing x to q = ( ) = PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 7ġ2 CHAPTER 1: BEARING AND ANGLE QUADRANT BEARING AND WHOLE CIRCLE BEARING Whole circle bearing- clockwise angle from 0 to 360 Quadratic bearing angle lying between 0 to 90 direction from north or south E quadrant bearing = N θ E Whole circle bearing = θ Quadrant bearing = S θ E Whole circle bearing = θ Quadrant bearing = S θ W Whole circle bearing = θ Quadrant bearing = N θ W Whole circle bearing = θ PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 8ġ3 CHAPTER 1: BEARING AND ANGLE CONVERT QUADRANT BEARING TO WHOLE CIRCLE BEARING QUADRANT BEARING WHOLE CIRCLE BEARING DRAWING N E = N W = S E = S W `= PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 9ġ4 CHAPTER 1: BEARING AND ANGLE CONVERT WHOLE CIRCLE BEARING TO QUADRANT BEARING WHOLE CIRCLE QUADRANT BEARING BEARING = N E DRAWING = S E = S W = N W PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 10ġ5 CHAPTER 1: BEARING AND ANGLE TUTORIAL 1. Bearing from C to D is Back bearing or bearing from D to C is = PREPARED BY NFZ POLIKU DIPLOMA UKUR TANAH 1Ħ CHAPTER 1: BEARING AND ANGLE CALCULATE ANGLE FROM 2 BEARING Base on following diagram, calculate angle y Note: 1. Bearing from B to C is Back bearing or bearing from C to B is = c. Bearing from A to B is Back bearing or bearing from B to A is = b. NOOR FAIZAH BINTI ZOHARDIN PegawaiPendidikanPengajiaanTinggi JabatanKejuruteraanAwam Politeknik Kuching Sarawak CETAKKAN PERTAMA :JUN 2013ĥ CHAPTER 1: BEARING AND ANGLE CHAPTER 1 BEARING AND ANGLE Bearing = angle from true north Angle = different of 2 bearing Figure : Bearing BACK BEARING Base on the above figure:- a. Ia juga dihasilkan berdasarkan Kurikulum terbaharu Politeknik Malaysia, Kementerian Pengajiaan Tinggi Adalah diharap buku ini dapat menjadi panduaan bagi pelajar untuk memahami serta mencintai ilmu ukur. Ia dihasilkan dengan ilustrasi dan jalan kerja yang mudah difahami untuk menarik minat pelajar mempelajari Ilmu pengiraan dalam bidang Ukur dengan lebih mendalam. Buku ini dihasilkan bagi memberi sedikit panduaan kepada pelajar-pelajar Diploma Ukur Tanah Politeknik yang mengambil subjek CG103 Survey Computation 1.
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4.0 COORDINATE Types of coordinate and calculation of surveyed area using coordinate method.ģ PRAKATA Alhamdullah, segala puji bagi Allah, tuhan pencipta sekalian alam.
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3.0 TRAVERSE Calculation of latitude and departure using Bowditch and Transit methods. 2.0 SURVEY TRIGONOMETRY Problem solving of triangles, squares and trapeziums using trigonometric formula. 1 CG 103 SURVEY COMPUTATION 1 CG 103 SURVEY COMPUTATION 1 NOOR FAIZAH BINTI ZOHARDINĢ Table of Contents 1.0 BEARING AND ANGLE Definition of bearing and angle conversion of bearing to angle conversion and vice versa.