PEMERINTAH KABUPATEN KENDALDINAS PENDIDIKANSMK 7 KENDALJalan Raya Sukorejo-Bawang KM 7 Plantungan Kendal 51362Email : smkn7kendal@yahoo.com

ULANGAN AKHIR SMESTER GASALTAHUN PELAJARAN 2014/2015

Mata Pelajaran:Teknik Listrik Dasar OtomotifWaktu :90 Menit

Kelas:X TSMTanggal:

Soal Uraian1. Sebutkan 3 kejadian sebagai akibat dari arus yang mengalir pada sebuah konduktor/rangkaian listrik beserta contohnya!2. Hitunglah waktu yang dibutuhkan untuk memindahkan muatan listrik sebesar 5000 C bila arus listrik yang mengalir 2500 mA!3. Berapa panjang kawat yang dibutuhkan jika kawat dengan hambatan jenis 0,000001 m dan luas penampang kawat 25 mm digunakan untuk elemen panas 1 kW dengan hambatan listrik 57,6 ?4. Sebutkan macam-macam perubahan energi listrik beserta contoh alat-alat listrik yang memanfaatkan prinsip perubahan energi listrik tersebut!5. Diketahui sebuah rangkaian seperti pada gambar berikut: A R = 3 B

Arus yang mengalir dari A ke B adalah 2 Ampere. Jika potensial di titik A = 10 V, berapa potensial di titik B?6. Sebutkan 3 jenis bahan/material berdasarkan sifat kemagnetannya beserta contoh bahan/material yang termasuk kelompok tersebut!7. Sebuah batang penghantar dengan panjang 25 cm dimasukkan pada celah antara dua kutub magnet (utara &selatan) menghasilkan gaya per satuan luas sebesar 30 dan gaya elektromagnetik 3750 N. Berapa besar arus listrik yang diperlukan?8. Sebutkan 3 fungsi baterai pada kendaraan bermotor!

9. Sebutkan nama dan fungsi bagian-bagian batere yang ditunjukkan pada gambar berikut!

10. Sebutkan perbedaan seri dan paralel beserta kelebihan/kekurangannya!11. Hitunglah nilai semua arus pada rangkaian berikut:

12. Diketahui sebuah rangkaian sebagai berikut:

R1= 10R2= 2R3= 512 VHitunglah besar arus total yang mengalir dalam rangkaian!13. Sebutkan 2 jenis transformator dan ciri-cirinya!14. Sebuah transformator memiliki jumlah lilitan primer 1000 lilitan dan lilitan sekunder 200 lilitan. Jika tegangan yang dialirkan ke lilitan primer sebesar 220 volt, berapa besar tegangan yang dihasilkan pada lilitan sekunder?15. Sebutkan macam-macam kabel yang digunakan pada kendaraan dan contoh penggunaannya!

PEMERINTAH KABUPATEN KENDALDINAS PENDIDIKANSMK 7 KENDALJalan Raya Sukorejo-Bawang KM 7 Plantungan Kendal 51362Email : smkn7kendal@yahoo.comULANGAN AKHIR SMESTER GASALTAHUN PELAJARAN 2014/2015

Nama:Mata Pelajaran:TLDO

Kelas:Tanggal:

No. Absen:Waktu:90 Menit

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