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SULIT 3762/2 Pengajian Kejuruteraan Elektrik dan Elektronik Kertas 1 2007 BAHAGIAN PENGURUSAN TEKNIK DAN VOKASIONAL JABATAN PENDIDIKAN TEKNIKAL SKEMA PEPERIKSAAN PERCUBAAN SPM 2012 PENGAJIAN KEJURUTERAAN ELEKTRIK DAN ELEKTRONIK Kertas 1 © Hak Cipta Jabatan Pendidikan Teknikal Skema ini mengandungi 6 halaman bercetak [Lihat sebelah] SULIT BIL 1. 2. 3. 4. 5. 6. JAWAPAN AGIHAN MARKAH i - Wear Insulated shoes. ii– Use the right electric equipment for the right work. iii – Beware and alert with power supply. iv– Use a good condition electric tools and quipments with safety features. A Red B Ultraviolet C Orange D Silver a TRUE b FALSE c TRUE d FALSE A - Kirchhoff’S Voltage Law states that the algebraic sum of the voltage supply, Vs and the voltage drop, Vr across the load around a closed path is equal to zero. B - Kirchhoff’S Current Law states that the algebraic sum of the current entering ad leaving a node is equal to zero. i - Limit the consumer current use. - Breaks the circuit when excess current occurred. ii - Connects the neutral line to the consumer point. iii - Connect and disconnect the circuit. - Break the circuit when excess current occurred. Iv - Distributes the current to the various end circuits. - Breaks the circuit when there is excess current. (i) Vp = 3 Bhg x 0.5 mV = 3 x 0.5mV = 1.5mV 1 1 JUMLAH MARKAH 1 1 1 1 1 1 1 1 1 1 4 4 4 3 3 6 1 1 1 1 4 2 (ii) Vp p = 2 x Vp = 2 x 1.5mV = 3mV 2 7. 4 MT2 LDR Triak 2 λ E B2 Get MT1 B1 UJT Lakaran 1 Label 1 2 2 6 BIL 8. 9. 10. JAWAPAN AGIHAN MARKAH (i) - A coil with greater number of turn will have stronger magnetic field compared to a conductor with less numbers of turns. (ii) - Diameter or size of the conductor. (iii)- Shape of the conductor. (iv)- The magnetic flux surrounding a core coil is more packed compared to magnetic flux of air core coil. Iron core coil is a ferromagnetic material wit higher permeability and is capable to pack the magnetic flux. (i) - Common winding ( Belitan sepusat) (ii)- Coupling winding ( Belitan Apit) a) AND Gate 1 JUMLAH MARKAH 1 1 1 4 1 1 1 2 1 2 (b) Z = √ R 2 + (XC – XL) 2 11. = √ 100 2 + (30 – 25 ) 2 1 = √ 10000 + 25 1 = 100.125 ohm 1 IT = V / Z = 100 / 100.125 12. 13. 1 ½ ½ = 0.99 Amp A Block : Sampling B Block : Quantization C Block : Encoding (i) AAnod (ii) K - Katod (iii) G Gate 1 1 1 1 1 1 1 (b) SCR 1 (c ) (i) (ii) (i) (ii) (iii) (a) Static Switch Surge Voltage Protection Circuit. 1 1 6 3 6 BIL JAWAPAN 14. (a) An Intrinsic semiconductor is a pure semiconductor that created when the bond between the same types of atom. (b) An Extrinsic semiconductor is created when an impure atom is diffused or implanted into an intrinsic semiconductor. 15. 16. (a) (b) (c) Exclusive OR gate. NAND gate NOR gate AGIHAN MARKAH JUMLAH MARKAH 2 2 4 1 1 1 3 (i) 1 (ii) 1 (iii) 1 (iv) 17. a) b) END A D 1 4 1 1 2 18. a) b) c) d) Betul Betul Betul Betul 19. (i) (ii) (iii) 20. 21. World Wide Web Random Accecs memory World Area Network 2 2 4 1 1 1 3 a) X 1 b) X 1 2 1. 2. Type of CPU RAM and ROM 1 1 2 BIL JAWAPAN AGIHAN MARKAH JUMLAH MARKAH 22. M 1 M 1 2 23. S S ● X U N 1 1 2 24. 25. 26. 27. 2 2 a) Manipulator Configuration b) Manipulator base frame c) Manipulator wrist 1 1 1 3 a) Hidraulik / Hydraulic b) Electrical power c) Pneumatic power 1 1 1 3 a) Betul 1 b) Betul 1 2 BIL 28. JAWAPAN AGIHAN MARKAH JUMLAH MARKAH a) Mechanical gripper bVacuum gripper 1 1 2 a. Optic sensor b. Audio censor 1 1 29. 2 30. I N P U T O U T P U T 1 1 2