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. C1 QUESTION 1 SOALAN 1 (a) Describe the functions of astronomy for surveyor in cadastral works. Jelaskan fungsifungsi bidang astronomi bagi juruukur tanah dalam kerjakerja pengukuran kadastral. [5 marks] [5 markah] (b) Draw the Celestial Sphere and define the term below: i. Celestial Pole ii. Celestial Equator Lukiskan gambarajah Sfera Jumantara (Sfera Samawi) dan jelaskan istilahistilah berikut: i. Kutub Jumantara ii. Khatulistiwa Jumantara [5 marks] [5 markah] (c) With an aid of a diagram, discuss the the motion of the stars based on: i. Observer s view on the equator ii. Observer s view on the north Dengan bantuan gambarajah, bincangkan pergerakan bintangbintang berdasarkan: i. Gambaran Pencerap di Khatulistiwa Bumi ii. Gambaran pencerap di Kutub Utara Bumi 2 SULIT
QUESTION 2 SOALAN 2 (a) Sketch the position of point P (ϕ = 10 30 N, λ = 45 00 E) and Q (ϕ = 55 30 N, λ = 40 00 W) on earth sphere. Based on your sketch, find: i. The arc distance from P to north pole ii. The longitude different of point P and Q iii. The shortest arc distance of point P and Q Lakarkan kedudukan titik P (ϕ = 10 30 U, λ = 45 00 T) dan Q (ϕ = 55 30 U, λ = 40 00 T) di atas sfera bumi. Berpandukan kepada lakaran anda, dapatkan: i. Jarak arka dari P ke kutub utara ii. Beza longitud titik P dan Q iii. Jarak arka terpendek di antara titik P dan Q [10 marks] [10 markah] (b) PQR is a spherical triangle. If P = 90, Q = 50 and r = 60, find p, q and R by using Napier s formula. PQR ialah segitiga sfera. Jika P = 90, Q = 50 dan r = 60, hitung p, q dan R dengan menggunakan formula Napier. 3 SULIT
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) Diagram B1a shows important elements in Celestial Sphere. By referring to the diagram, answer the following questions: Rajah B1a menunjukkan elemen yang penting dalam sfera jumantara. Dengan merujuk kepada rajah tersebut, jawab soalan yang berikut: i. Define First Point of Aries at Vernal Equinox and Right Ascension Berikan definisi Titik Hamal Awal dan Jarak Hamal ii. Describe the Horizon Topocentric Coordinate System Terangkan Sistem Koordinat Ufuk Toposentrik Diagram B1a / Rajah B1a [10 marks] [10 markah] 4 SULIT
(b) By referring to Table B1b, plot the location of the star S 1, S 2 and S 3. Given bearing = 150º, Zenith Distance = 50º. Dengan merujuk kepada Jadual B1b, plotkan lokasi bagi Bintang S1, S2 dan S3. Diberikan bering = 150º dan Jarak Zenith = 50º. Star Right Ascension Declination Bintang Jarak Hamal Deklinasi 1. S 1 0h 0 2. S 2 10h 70 3. S 3 15h 30 Table B1b / Jadual B1b 5 SULIT
C e l e s t i a l M e r i d i a n SULIT QUESTION 2 SOALAN 2 CLO 1 (a) Based on the following information, show the position of the star in Diagram B2a and identify the azimuth value. i. Star 1: Rise, Northern Star, Angle at Zenith = 30 ii. Star 2: Rise, Southern Star, Angle at Zenith = 50 iii. Star 3: Set, Southern Star, Angle at Zenith = 20 iv. Star 4: Set, Northern Star, Angle at Zenith = 40 Berdasarkan maklumat berikut, tunjukkan kedudukan bintang di dalam Rajah B2a dan kenalpasti nilai azimutnya. i. Bintang 1: Terbit, Bintang Utara, Sudut Zenit = 30 ii. Bintang 2: Terbit, Bintang Selatan, Sudut Zenit = 50 iii. Bintang 3: Terbenam, Bintang Selatan, Sudut Zenit = 20 iv. Bintang 4: Terbenam, Bintang Utara, Sudut Zenit = 40 N NCP W Z E S SCP Z N E S W NCP SCP Zenith North East South West North Celestial Pole South Celestial Pole Diagram B2a / Rajah B2a [10 Marks] [10 Markah] 6 SULIT
(b) Based on the given data in the sun observation form (Diagram B2b), calculate: i. Calculated azimuth of the sun for Set 1 and Set 2 ii. Actual Reference Object (RO) for Set 1 and Set 2 iii. RO Grid bearing for Set 1 and Set 2 iv. Average grid bearing of the Reference Object Berdasarkan data yang diberi di dalam borang cerapan matahari (Rajah B2b), kirakan: i. Azimuth matahari yang dikira untuk Set 1 dan Set 2 ii. Tanda Rujuk (TR) sebenar untuk Set 1 dan Set 2 iii. Bearing grid TR untuk Set 1 dan Set 2 iv. Purata Bearing Grid ke Tanda Rujuk Diagram B2b / Rajah B2b [15Marks] [15 Markah] 7 SULIT
QUESTION 3 SOALAN 3 (a) Given the altitude of the sun (α) at a place is 20 33 20 which is observed from latitude (ϕ) 3 12 52 N. The sun declination (δ) during the observation is 18 42 30 S. Find the azimuth of the sun. Diberi altitud (α) matahari di satu stesen ialah 20 33 20 yang mana dicerap dari latitud (ϕ) 3 12 52 U. Deklinasi (δ) matahari pada ketika cerapan ialah 18 42 30 S. Hitungkan azimut matahari tersebut. [10 marks] [10 markah] (b) Explain clearly FIVE (5) positions of the sun which determines the beginning of the main prayer times. Draw diagrams to support the explanation. Terangkan dengan jelas LIMA (5) kedudukan matahari yang menentukan permulaan waktu solat utama. Lukiskan rajah untuk membantu huraian tersebut. QUESTION 4 SOALAN 4 CLO 1 (a) With an aid of a diagram, describe the moon phases. Dengan bantuan gambarajah, terangkan fasafasa bulan. [10 Marks] [10 Markah] 8 SULIT
CLO 1 (b) Based on data provided on Table B4b, calculate Zohor prayer time on 29 December 2014 for Zon 1, Limbang, Sarawak. Berdasarkan data yang dibekalkan dalam Jadual 2, hitung waktu solat Zohor pada 29 Disember 2014 bagi Zon 1, Limbang, Sarawak. Reference Station : Limbang December 2014 Almanac Latitude : 4 47 N WPM GHA SD Longitude : 114 50 E 29.00 3 47 03 16 14.5 Standard Longitude : 120 E 30.00 3 46 52 16 14.3 Table B4b / Jadual B4b SOALAN TAMAT 9 SULIT