SECTION A : 40 MARKS BAHAGIAN A : 40 MARKAH INSTRUCTION: This section consists of TEN (10) structure questions. Answer ALL questions. ARAHAN: Bahagian ini mengandungi SEPULUH (10) soalan struktur. Jawab semua soalan. QUESTION 1 SOALAN 1 C1 Name FOUR (4) methods that can be used to calculate the area of a theodolite traverse. Namakan EMPAT (4) kaedah yang boleh digunakan untuk mengira luas sesuatu terabas teodolit. QUESTION 2 SOALAN 2 C1 Volumes can be calculated depending on the shape of the site. List TWO (2) ways to calculate volume. Pengiraan isipadu bergantung kepada bentuk kawasan kerja. Senaraikan DUA (2) cara untuk mengira isipadu. 2 SULIT
QUESTION 3 SOALAN 3 Calculate the area enclosed by straight line in figure A3: Kirakan luas yang dibatasi garis lurus bagi rajah A3. 6m 4m 8m Figure A3 : Area of triangle Rajah A3 : Luas segitiga QUESTION 4 SOALAN 4 Calculate the volume embankment by using Trapezoidal Rule. The cross-sectional areas at 15m intervals is shown in Table A4 : Kirakan isipadu tambakan menggunakan Hukum Trapezoid. Luas kawasan keratan rentas dengan sela 15m seperti berikut Jadual A4: Table A4 : The values of cross section area Jadual A4: Luas kawasan keratan rentas Distance (m) Jarak (m) Area (m 2 ) Luas (m 2 ) 0 15 30 45 60 75 90 11 42 64 72 160 180 220 3 SULIT
QUESTION 5 SOALAN 5 Refer to Figure A5 below, calculate area using Trapezoidal Rule. Berdasarkan Rajah A5 di bawah, kira luas menggunakan kaedah Trapezium. Diagram A5 / Rajah A5 QUESTION 6 SOALAN 6 C1 Define the elements of electromagnetic waves below, i) Cycle and frequency ii) Wavelength Takrifkan elemen gelombang elektromagnet di bawah, i) kitar dan frekuensi ii) jarak gelombang 4 SULIT
C1 QUESTION 7 SOALAN 7 State FOUR (4) uses of Electronic Distance Measurement (EDM) instrument in survey work. Nyatakan EMPAT (4) kegunaan alat Pengukuran Jarak Elektronik (EDM) dalam kerja-kerja ukur. QUESTION 8 SOALAN 8 Explain the TWO (2) systems of EDM to measure distance. Terangkan DUA (2) sistem bagi EDM untuk mengukur jarak.. QUESTION 9 SOALAN 9 At station A, wave travels with a 5Hz frequency and 2.5m/s velocity. Based on the calculation, it shows that 10.5 wave is formed when it nears station B. Determine the horizontal distance from A to B. Di stesen A, gelombang bergerak dengan frekunsi 5Hz dengan halaju 2.5m/s. Pengiraan didapati 10.5 gelombang berlaku bila ia mendekati stesen B. Kirakan jarak mendatar A ke B 5 SULIT
QUESTION 10 SOALAN 10 Occasionally, the readings of EDM are subjected to error. Explain TWO (2) principal sources of error. Kebiasaannya, semua alat EDM terdedah kepada selisih alat. Terangkan DUA (2) jenis seliseh alat tersebut. 6 SULIT
SECTION B : 60 MARKS BAHAGIAN B : 60 MARKAH INSTRUCTION: This section consists of FOUR (4) essay questions. Answer THREE (3) questions only. ARAHAN: Bahagian ini mengandungi EMPAT (4) soalan esei. Jawab TIGA(3) soalan sahaja. QUESTION 1 SOALAN 1 C3 Theodolite for tachymetry work is set at station A and measure to point B, C and D. The data are recorded as in the Table B1 and the height of instrument at station A is 1.500m. Based on the data in Table B1, calculate: Sebuah teodolite untuk menjalankan kerja tekimetri didirikan di stesen A dan cerapan dibuat pada titik B, C dan D. Data direkodkan seperti dalam Jadual B1 di bawah dan ketinggian alat adalah 1.500m. Berdasarkan data-data dalam Jadual B1, kira: i. Horizontal distance (H D ) AB, AC and AD [6 marks] Jarak ufuk (H D ) AB, AC dan AD [6 markah] ii. Vertical distance (V D ) AB, AC and AD jarak pugak (V D ) AB, AC dan AD [6 marks] [6 markah] iii Reduced level (RL) of point B and C Aras laras (RL) bagi titik B dan C [8 marks] [8 markah] 7 SULIT
Table B1 / Jadual B1 Tachymetry instrument Point Vertical Bearing Stadia Reading Upper Middle Lower Remarks A B C 87 95 2.5 3.20 2.0 2.60 1.5 2.0 Reduced Level(RL) of Stn. A = D 82 o 4.2 3.2 2.2 35.20 m QUESTION 2 SOALAN 2 C3 The volume of cut and fill along a road is given as in the Table B2 below with negative (-) indicates embankments and positive (+) indicates a deduction. Isipadu potongan dan tambakan di sepanjang jalan diberikan dalam Jadual B2 di bawah dengan penunjuk positif (+) bagi pengurangan dan negatif (-) bagi penambahan. Chainage (m)/ rantaian Volumes (m 3 )/ isipadu Table B2/ Jadual B2 0 20 40 60 80 100 120 140 160 180 200 0 100 200 250 300 200-400 -500-150 -200 50 If the earth consists clay with depletion factor 10%, sketch mass haul diagram with suitable scale by using graph paper. Jika tanah adalah dari jenis tanah liat dengan faktor penyusutan 10%, lakarkan gambarajah urungan padu dengan skala yang sesuai menggunakan kertas graf. [20 marks] [20 markah] 8 SULIT
QUESTION 3 SOALAN 3 C3 Two straight lines AB and BC intersect with deflection angle of 12 o 30. It will be connected by a circular curve with a radius of 600m. The chainage of the intersection is 1000.00m. Calculate the data required for setting out to peg the curve at 25m interval continuous chainage. Dua jalan lurus AB dan BC bersilang dengan sudut pesongan 12 o 30. Ia akan disambung dengan lengkung bulat bergaris pusat 600m. Rantaian pada titik persilangan adalah 1000.00m. Kirakan data pemancangan untuk menanda lengkung pada sela 25m. [20 marks] [20 markah] QUESTION 4 SOALAN 4 C3 A 250m long culvert built on the slope with gradient 1:50 decrease from S1 to S3. Reduce level and the invert level at S1 is 23.500m and 21.300m. If the reduced level at S2 is 18.600m and S3 is 15.200 and height of traveller rod is 2.500m, determine: Satu pembentung berukuran 250m panjang dibina pada kecerunan menurun 1:50 dari keratan S1 hingga S3. Aras laras tanah (Reduce level) dan aras terbalik masing-masing pada keratan S1 adalah 23.500m dan 21.300m. Sekiranya aras laras tanah pada keratan S2 adalah 18.600m dan S3 adalah 15.200m dan panjang rod pengembara adalah 2.500m, tentukan: a) Invert level at S2 and S3 Aras terbalik pada S2 dan S3 b) Height of rail S1, S2 and S3 Tinggi rel pada S1, S2 dan S3 c) Depth of excavation at S1, S2 and S3 Kedalaman penggalian pada S1, S2 dan S3 [20 marks] [20 markah] 9 SULIT
SOALAN TAMAT 10 SULIT