soalan teori etn 502

8/18/2019 Soalan Teori Etn 502

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ETN 502 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebelah]

TERHAD

TERHAD

NO. KAD PENGENALAN

ANGKA GILIRAN

KOLEJ VOKASIONAL MALAYSIA

BAHAGIAN PENDIDIKAN TEKNIK DAN VOKASIONAL

KEMENTERIAN PENDIDIKAN MALAYSIA

DIPLOMA VOKASIONAL MALAYSIA (TEKNOLOGI ELEKTRONIK)

CONTROL SYSTEM 1 ETN 502

SEMESTER 5/2014

PENTAKSIRAN AKHIR TEORI

2 Jam

ARAHAN PENTAKSIRAN1 Tulis nombor kad pengenalan dan angka giliran anda pada petak yang disediakan.

2 Tunjukkan kad pengenalan anda untuk disemak oleh Pengawas Peperiksaan/Pentaksir.

3 Anda perlu berpakaian sesuai mengikut peraturan yang ditetapkan oleh kolej.

4 Baca arahan soalan dengan teliti. Rujuk kepada Pengawas Peperiksaan / Pentaksir

sekiranya terdapat sebarang kekeliruan.

5 Anda tidak dibenarkan berbincang atau berhubung dengan calon lain semasa

peperiksaan.

6 Anda dikehendaki menjawab dalam ruang jawapan yang disediakan pada kertas soalan

ini. Anda boleh meminta kertas jawapan tambahan sekiranya ruang yang disediakan

tidak mencukupi.

7 Jawapan anda hendaklah dihantar bersama dengan kertas soalan ini.

Kertas soalan ini mengandungi 9 halaman bercetak.


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JAWAB SEMUA SOALAN

1. Rajah 1 menunjukkan kabel pendawaian elektrik.

a) Berdasarkan rajah 1, terangkan fungsi:

i. Pelindung mekanikal

ii. Pengalir

iii. Penebat (3 markah)

b) Senaraikan tiga jenis pengalir yang biasa digunakan dalam kabel pendawaian.

( 3 markah )

c) Nyatakan tiga faktor pemilihan kabel untuk membuat sesuatu pendawaian.

( 3 markah )

d) 7/1.04mm adalah satu contoh spesifikasi dalam pemilihan kabel pendawaian elektrik.

Nyatakan maksud yang diwakili oleh 7 dan 1.04mm.

( 2 markah )

Rajah 2

e) Rajah 2 menunjukkan satu sistem pendawaian di rumah.

Nyatakan saiz kabel V dan W yang sesuai untuk membuat pendawaian tersebut.(2 markah)

Rajah 1

Pengalir

Pelindung mekanikal

Penebat

KFA

Litar Pemanas

Air/ Litar Kuasa

Litar Lampu

V

W


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2. Rajah 3 menunjukkan sejenis terminal yang digunakan dalam penyambungan kabel LAN

( Local Area Network).

Berdasarkah Rajah 3,

a) Namakan terminal tersebut. ( 1 markah )

b) Nyatakan jenis kabel yang sesuai dipasang pada terminal tersebut dan terangkankegunaan kabel tersebut. ( 3 markah )

c) Berdasarkan pengalaman anda, jelaskan secara ringkas langkah bagi pemasangankomponen tersebut . ( 5 markah )

d) Kabel gentian optik dan kabel coxial juga tergolong dalam kabel LAN. Nyatakan 3kelebihan kabel gentian optik berbanding kabel coxial. ( 3 markah )

Rajah 3


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3. Televisyen adalah salah satu contoh VDU ( Visual Display Unit ).

a) Nyatakan 3 jenis televisyen yang digunakan secara meluas pada masa kini

( 3 markah )

b) Rajah 4 menunjukkan struktur lapisan LCD TV.

i. Namakan lapisan 1, 3, 5,dan 6 berserta fungsinya. ( 8 markah )

ii. Perbezaan antara tv LED dan LCD adalah pada `backlight ’ yang digunakan.

Nyatakan ‘backlight ’ bagi tv LED dan LCD tersebut.

( 2 markah )

Lapisan TFT

Lapisan ITO

Rajah 4


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4. Rajah 5 menunjukkan litar paparan 7 ruas.

Rajah 5

Apabila litar dihidupkan, didapati ruas a tidak menyala.

a) Nyatakan komponen yang dijangka rosak. ( 1 markah )

b) Namakan DUA alat ujian yang digunakan untuk mengesan kerosakan.

( 2 markah )

c) Terangkan langkah - langkah mengesan kerosakan ( 7 markah )

d) Senaraikan langkah keselamatan yang perlu diambil semasa mengendalikan IC.

( 2 markah )

R1R2

R3

R4

R5

R6

R7


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Ruang Jawapan

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soalan teori etn 502

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