INSTRUCTION: This section consists of SIX (6) essay questions. Answer FOUR (4) questions only.

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1 ESSAY: 100 MARKS ESEI: 100 MARKAH INSTRUCTION: This section consists of SIX (6) essay questions. Answer FOUR (4) questions only. ARAHAN: Bahagian ini mengandungi ENAM (6) soalan esei. Jawab EMPAT (4) soalan sahaja. QUESTION 1 SOALAN 1 (a) State the definition of Ohm s Law and its equation. Nyatakan definisi Hukum Ohm dan persamaannya. (b) State the definition of the following terms: Nyatakan definisi bagi istilah di bawah: i. Electromotive force ( EMF ) Daya Elektromotif Potential difference Beza Upaya i Power Kuasa 2

2 CLO3 (c) Figure 1: Circuit Rajah 1: Litar By referring to Figure 1, given the R 1 = 25Ω, R 2 = 30Ω and R 3 = 30Ω. Supply voltage is V = 240V. Calculate:- Berdasarkan Rajah 1, diberi R 1 = 25Ω, R 2 = 30Ω and R 3 = 30Ω.Bekalan voltan ialah V=240V. Kirakan: i. Total resistance, R T Jumlah Rintangan, R T Total current, I T Jumlah Arus, I T [4 marks] [4 markah] [3 markah] i Current at resistor R 2, I 2 Arus di perintang R 2,, I 2 [3 markah ] iv. Current at resistor R 3,, I 3 Arus di perintang R 3,, I 3 3

3 CLO3 d) A rice cooker contains of 3.45kW power and home voltage supply is 230V. Calculate:- Sebuah periuk nasi berkuasa 3.45kW dan bekalan voltan rumah ialah 240V. Kirakan. i. Current, I Arus, I Resistance, R Rintangan, R [3 markah] 4

4 QUESTION 2 SOALAN 2 CLO2 (a) i. Draw the pattern of the magnetic field produced by electric current through a straight wire and through a wire coil as shown diagram B2 : Lakarkan patten medan magnet yang di hasilkan oleh arus elektrik yang mengalir pada satu dawai lurus dan pada dawai yang berbentuk gelong seperti rajah B2 : [5 marks] [5 markah] Diagram B2 / Rajah B2 Referring in diagram B2, explain your answer by using either the right-hand rule (conventional flow) or the left-hand rule (electron flow). CLO2 (b). Berdasarkan rajah B2, terangkan jawapan anda dengan menggunakan samada hukum tangan kanan ( aliran konvensional) atau hukum tangan kiri ( aliran electron) List FOUR (4) factors that influence electromagnetic strength. [4 marks] [4 markah] Senaraikan EMPAT (4) faktor yang mempengaruhi kekuatan elektromagnetik. [4 marks] [4 markah] 5

5 CLO2 (c). The two types of induction are self-induction and mutual-induction. Give an example of application for each type of electromagnetic induction and explain its operation. Dua jenis aruhan adalah aruhan sendiri dan aruhan saling. Berikan contoh aplikasi setiap aruhan elektromagnetik dan terangkan operasinya. [12 marks] [12 markah] 6

6 QUESTION 3 SOALAN 3 (a) Give the definition for transducer in measurement properties. Berikan maksud pemindah dalam sifat-sifat pengukuran. (b) Measurement system consists of SEVEN (7 ) stages which start from physical variable and ends with display or used by a control device. State the meaning and example for physical variable and display or used by a control device. Sistem pengukuran terdiri daripada TUJUH (7) peringkat yang dimulai dari pembolehubah fizikal dan diakhiri dengan paparan atau digunakan oleh peralatan kawalan. Nyatakan maksud dan contoh untuk pembolehubah fizikal dan paparan atau digunakan oleh peralatan kawalan. [14 marks] [14 markah] (c) Oscilloscope can be used on electrical equipment. Describe the characteristics of oscilloscope and give THREE (3) differences between multimeter and oscilloscope. Osikloskop boleh digunakan pada peralatan elektrik. Terangkan ciri-ciri osiloskop dan nyatakan TIGA (3) perbezaan antara meter pelbagai dengan osiloskop. [9 marks] [9 markah] 7

7 QUESTION 4 SOALAN 4 (a) Name FOUR (4) colour codes and its designation based on British Standard colour codes for cables. Namakan EMPAT (4) kod warna dan fungsi berdasarkan piawaian warna kabel bristish. [8 marks] [8 markah] (b) i. Explain printed circuit board (PCB) with its function and construction. Terangkan "printed circuit board" dengan fungsi dan pembinaanya. Explain the advantages of printed circuit board. Terangkan kelebihan "printed circuit board". [12 marks] [12 markah] (c) Explain the basic processes involved in a wiring harness production. Terangkan proses asas yang terlibat untuk menghasilkan wiring harness. [5 marks] [5 markah] 8

8 QUESTION 5 SOALAN 5 (a) Identify THREE (3) types of automobile fuses. Kenalpasti TIGA (3) jenis fius kenderaan. [3 markah] (b) Explain briefly THREE (3) differences between a fuse and a circuit breaker. Terangkan secara ringkas TIGA (3) perbezaan diantara fius dan pemutus litar. [6 marks] [6 markah] (c) List down FOUR (4) elements that need to be considered in harness design. Senaraikan EMPAT (4) perkara yang perlu dipertimbangkan dalam mereka bentuk harness. [4 marks] [4 markah] (d) Nowadays, many types of terminals are available and have developed. Pada masa kini, terdapat pelbagai terminal yang telah dibangunkan. i. List SIX (6) types of terminations. Senaraikan ENAM (6) jenis terminal. Sketch any THREE (3) types of terminations. Lakarkan TIGA (3) jenis terminal. [6 marks] [6 markah] [6 marks] [6 markah] 9

9 QUESTION 6 SOALAN 6 (a). Define the terms below: Berikan definisi istilah berikut: i. Radio Data System.(RDS) i Radio Broadcast Data System.(RBDS) Data Audio Broadcast (DAB) [3 markah] (b) List SEVEN (7) main components of a basic seat belt tensioner system. Berikan TUJUH (7) komponen utama yang asas bagi sistem tensioner tali pinggang. [7marks] [7 markah] State FIVE (5) features for the Radio Broadcast Data System (RBDS). Nyatakan LIMA (5) ciri-ciri Radio Broadcast Data System (RBDS) [5 marks] [5 markah] (c) List FIVE (5) basic components of the power window system and explain its basic operation. Senaraikan LIMA (5) komponen asas sistem tingkap kuasa dan terangkan operasi asas sistem tersebut. [10 marks] [10 markah] QUESTION END SOALAN TAMAT 10

INSTRUCTION: This paper consists of SIX (6) structured questions. Answer any FOUR (4) questions.

INSTRUCTION: This paper consists of SIX (6) structured questions. Answer any FOUR (4) questions. ARAHAN: Kertas ini mengandungi ENAM (6) soalan berstruktur. Jawab mana-mana EMPAT (4) soalan. QUESTION 1