SECTION A : 50 MARKS BAHAGIAN A : 50 MARKAH INSTRUCTION: This section consists of TWO (2) structured questions. Answer ALL questions. ARAHAN: Bahagian ini mengandungi DUA(2) soalan berstruktur. Jawab semua soalan. QUESTION 1 SOALAN 1 (a) Waves move with a frequency of 5 Hz and velocity of 2.5m/s from station A. The calculation shows 10.5 waves occur when it approached station B. Calculate the horizontal distance from A to B Gelombang berfrequensi 5 Hz bergerak dari stesen A ke stesen B dengan kelajuan 2.5m/s. Pengiraan menunjukkan 10.5 gelombang berlaku apabila menghampiri stesen B. Kira jarak mendatar dari stesen A ke stesen B. (b) Identify TWO (2) of EDM errors and the effects on measurement. Kenalpasti DUA (2) selisih EDM dan kesannya pada pengukuran. (5 marks) [5 markah] (8 marks) [8 markah] (c) With the help of a diagram, explain the principle of distance measurement using EDM tool Berbantukan gambarajah, terangkan prinsip pengukuran jarak dengan menggunakan alat EDM. (12 marks) [12 markah] 1
QUESTION 2 SOALAN 2 CLO3 (a) List the influence of plumbob in shaft. Senaraikan pengaruh plumbab di dalam syaf. (3 marks) [3 markah] CLO3 (b) Underground surveying is usually performed at depths exceeding 100 m. List the objectives of underground survey. Pengukuran bawah tanah dilakukan pada kedalaman yang melebihi 100 m. Senaraikan objektif pengukuran bawah tanah. (6 marks) [6 markah] CLO3 C4 (c) Explain the concept of drop the plumbob into the shaft. Terangkan konsep menurunkan plumbop ke dalam shaft. (8 marks) [8 markah] CLO3 (d) Gyro theodolite is used to transfer azimuth and coordinate from surface to underground. Explain the concept of Gyro theodolite. Theodolit giro digunakan dalam pemindahan azimuth dan coordinat dari permukaan bumi ke bawah tanah. Terangkan mengenai teodolit giro. (8 marks) [8 markah] 2
SECTION B: 50 MARKS BAHAGIAN B: 50 MARKAH INSTRUCTION: This section consists of FOUR (4) structured questions. Answer TWO (2) questions only. ARAHAN: Bahagian ini mengandungi EMPAT (4) soalan berstruktur. Jawab DUA (2) soalan sahaja. QUESTION 1 SOALAN 1 (a) Identify FIVE (5) important things in title block a plan. Kenalpasti LIMA (5) perkara penting yang perlu ada dalam blok tajuk. [5 marks] [5 marks] Station Staff Horizontal Bearing Vertical Bearing Upper stadia reading Middle stadia reading Below stadia reading R P 139⁰ 40 70⁰ 00 1.703 X 1.503 Hi = 1.100 Q 249⁰ 20 92⁰ 30 1.542 1.421 Y Table 1 / Jadual 1 (b) Table 1 shows a data of tachometry using staff normal method. If reduced level of station P were given at 115.000m, calculate: (K=100, C=0) Jadual 1 menunjukkan data tekimetri menggunakan kaedah staf normal. Jika aras laras di stesen B ialah 115.000m, kirakan : (K=100, C=0) i. Reduced level point R and point Q Aras laras titik R dan titik Q [11 marks] [11 marks] 3
ii. Horizontal distance point P to Q Jarak mendatar titik P ke Q [7 marks] [7 marks] iii. Gradient at point PQ Kecerunan titik PQ [2 marks] [2 marks] 4
QUESTION 2 SOALAN 2 C1 (a) State the formula of Horizontal distance (D), Vertical distance (V), Difference height (dh) and Reduced level (RL) in tachymetry using fixed stadia vertical staff. Nyatakan formula Jarak Ufuk (D), Jarak Pugak (V),Beza tinggi(dh) dan Aras laras(rl) dalam tekimetri menggunakan kaedah inclined sight with the staff vertical [4 marks]. [4 markah] (b) The tachymetry observations using inclined sight with the staff vertical given in the Table 2 below : Data cerapan tekimetri dengan kaedah inclined sight with the staff vertical seperti dalam Jadual 2 dibawah ; Station and height instrument 2 (1.542m) 3 (1.503m) Staff Point Vertical Angle Upper Stadia Middle Stadia Lower Stadia 3 88 31 0.890 0.600 0.310 4 94 37 1.230 1.200 1.170 5 94 05 1.326 1.300 1.274 Table 2 / Jadual 2 Reduce level point 2 is 100.00 meter. Multiplying Constant (K) is 100 and additive constant (C) is 0. Calculate Reduced level (RL) point 3, point 4 and point 5. Aras laras titik 2 ialah 100 meter. Multiplying Constant (K) ialah 100 and additive constant (C) ialah 0. Hitung aras laras titik 3, titik 4 dan titik 5. [21 marks]. [21 markah] 5
QUESTION 3 SOALAN 3 CLO2 (a) Industrial survey is a branch of survey field used in the industry. Give other names for industrial survey. [4 marks] [4 markah] CLO2 (b) Give FOUR (4) techniques used in Industrial survey. [8 marks] [8 markah] CLO2 (c) Global positioning system (GPS) is one of the methods to conduct dimensional survey. Identify THREE (3) main segments of GPS. Sistem penentududukan global (GPS) merupakan salah satu kaedah dalam menjalankan ukur dimensi. Kenalpasti TIGA (3) segmen utama yang terdapat dalam GPS. [13 marks] [13 markah] 6
QUESTION 4 SOALAN 4 CLO4 C4 (a) We were exposed to survey works that are made on the surface of the earth such as cadastral surveying, tachymetry surveying and hydrographic survey. Explain what is meant by underground survey. Kita telah didedahkan dengan kerja-kerja ukur yang dibuat di permukaan bumi, seperti ukur kadaster, ukur tekimeter dan ukur hidrografi. Nyatakan apakah yang dimaksudkan dengan ukur perlombongan. [2 marks] [2 markah] CLO4 C4 (b) Identify the most difficult task for a surveyor. Kenalpasti tugasan yang paling sukar bagi seorang jurukur dalam ukur perlombongan. [3 marks] [3 markah] CLO4 C3 (c) Underground surveying involves two conditions, surface of the earth and below ground. List the parts shown in Figure 1. Pengukuran bawah tanah melibatkan dua keadaan, iaitu di atas permukaan bumi dan juga di bawah tanah. Berpandukan kepada Rajah 1 dibawah, senaraikan bahagian yang ditunjukkan. [5 marks] [5 markah] 7
Figure 1 / Rajah 1 CLO4 C4 (d) With the aid of a diagram, explain the procedure of azimuths transfer for shallow mine shaft and large radius. Berbantukan gambarajah, terangkan prosedur pemindahan datum untuk shaf yang cetek dan berjejari besar. [15 marks] [15 markah] SOALAN TAMAT 8