ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

TERHAD

NO. KAD PENGENALAN

ANGKA GILIRAN

KOLEJ VOKASIONAL MALAYSIA

BAHAGIAN PENDIDIKAN TEKNIK DAN VOKASIONAL

KEMENTERIAN PENDIDIKAN MALAYSIA

DIPLOMA VOKASIONAL MALAYSIA (TEKNOLOGI ELEKTRONIK) INDUSTRIAL AUTOMATION 3 ETN 501

SEMESTER 5/2014

PENTAKSIRAN AKHIR TEORI

2 Jam

ARAHAN PENTAKSIRAN 1 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 10 halaman bercetak.

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ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

JAWAB SEMUA SOALAN

1. Rajah 1 di bawah menunjukkan sebuah pemampat udara yang digunakan dalam

menjalankan amali sistem pneumatik.

a. Anda dikehendaki menyatakan fungsi pemampat udara tersebut. (2 markah)

i) Apakah alat ukuran yang digunakan untuk mengukur tekanan pada pemampat

udara di atas. (2 markah)

ii) Namakan tiga (3) unit yang digunakan untuk mengukur tekanan. (3 markah)

iii) Senaraikan lima komponen yang terdapat pada pemampat udara (5 markah)

Rajah 1

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ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

2. Rajah 2 menunjukkan litar bagi unit servis udara(air service unit) pada sistem pneumatik.

Berdasarkan Rajah 2:

a. Namakan komponen yang berlabel P, Q, R dan S dalam litar tersebut. (4 markah)

b. Terangkan bagaimana litar ini berfungsi pada sistem pneumatik. (4 markah)

c. Anda dikehendaki,

i) memberikan dua (2) contoh aplikasi yang menggunakan sistem tersebut. (2 markah)

ii) menerangkan kesan pada contoh aplikasi yang anda nyatakan di c i) sekiranya Q tidak berfungsi.

(2 markah)

Rajah 2

S P Q

R

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ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

3. Rajah 3 menunjukan satu litar lengkap bagi sistem pneumatik asas tidak berkendali.

Anda dikehendaki,

a. melabelkan pada injap kawalan arah 5/2 dengan label piawai ISO.

(5 markah)

b. melakarkan litar pneumatik tersebut dalam keadaan ia berkendali.

(5 markah)

c. menyatakan fungsi bagi:

i) unit servis udara.

ii) silinder dua tindakan.

(2 markah)

Silinder dua tindakan

Injap kawalan arah 5/2

Unit servis udara

Rajah 3

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ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

4. a. Anda diberikan komponen pneumatik di bawah,

Unit Servis Udara

Injap Kawalan Arah 3/2

Silinder Satu Tindakan

i) Bina dan lakarkan satu litar lengkap dengan menggunakan komponen pneumatik tersebut.

(6 markah)

ii) Huraikan kendalian litar yang anda lukis di a i) (6 markah)

b. Sistem pneumatik yang dilakarkan tidak dapat berfungsi dengan berkesan.

Nyatakan dua kemungkinan yang menyebabkan ia berlaku.

(2 markah)

KERTAS SOALAN TAMAT

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ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

Ruang Jawapan

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TERHAD 7 ETN 501

ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

Ruang Jawapan

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TERHAD 8 ETN 501

ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

Ruang Jawapan

Soalan 3 a.

Soalan 3 b

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TERHAD 9 ETN 501

ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

Ruang Jawapan

Soalan 4 a i)

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TERHAD 10 ETN 501

ETN 501 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebeah] TERHAD

Ruang Jawapan

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