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Soalan Percubaan PT3 Kemahiran Hidup Kemahiran Teknikal
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12
BAHAGIAN B
[ 40 markah ]
Jawab semua soalan di kertas jawapan yang disediakan.
21. Rajah 9 di bawah menunjukkan contoh enjin 4 Lejang secara
ringkas (grafik).
Rajah 9
a) Nyatakan dengan jelas proses Lejang Masukan.
[ 8 markah
]
b) Apakah istilah TTA dan TTB
[ 2 markah
]
KHB KEMAHIRAN HIDUP TEKNIKAL (76)
13
Jawapan:
1 a) Lejang Masukan adalah lejang pertama dalam edaran enjin 4
lejang. ......................................................................................................
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1 b.
TTA : .........................................................................................................
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KHB KEMAHIRAN HIDUP TEKNIKAL (76)
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TTB
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22. Cara mengira penggunaan tenaga elektrik tempat kediaman
mengikut kilowatt jam ( kwj )
Kadar Tarif
Bagi 200 unit
pertama
RM 0.218 seunit
Bagi 200 unit
kedua
RM 0.289 seunit
Bagi 200 unit
ketiga
RM 0.312 seunit
Bagi baki unit
seterusnya
RM 0.510 seunit
a) Pada bulan ini, Encik Ahmad telah menggunakan elektrik
sebanyak 180 unit. Berapakah jumlah bayaran yang perlu
dijelaskan oleh Encik Ahmad ?
[ 2 markah ]
KHB KEMAHIRAN HIDUP TEKNIKAL (76)
15
b) Puan Batrisya dan keluarganya seramai 8 orang tinggal di
sebuah banglo berhampiran bandar. Mereka menggunakan
tenaga elektrik secara berhemah. Bacaan meter kwj pada bulan
lepas ialah 07654. Pada bulan ini bacaan meter kwj meningkat
kepada 08176. Berapakah jumlah bayaran yang perlu dibayar
oleh Puan Batrisya ?
[ 4 markah ]
c) Bacaan meter kwj rumah kediaman seorang jutawan pada bulan
Jun ialah sebanyak 05911. Manakala bacaan meter kwj pada
bulan sebelumnya ialah 04588. Berapakah bayaran elektrik yang
beliau kena bayar ?
[ 4 markah ]
Jawapan :
2a. ............................................................................................................
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KHB KEMAHIRAN HIDUP TEKNIKAL (76)
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2b. ............................................................................................................
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23. Rajah 10 menunjukkan sebuah buzer berserta simbolnya.
KHB KEMAHIRAN HIDUP TEKNIKAL (76)
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RAJAH 10
Buzer adalah peralatan penggera yang menukar gelombang elektrik
kepada gelombang bunyi. Buzer banyak digunakan dalam litar
elektronik.
Berdasarkan pernyataan diatas,
a) Nyatakan dua perbezaan antara buzer elektromagnet dengan
buzer piezo.
[ 4
markah ]
b) Huraikan tiga perbezaan diantara komponen aktif dengan
komponen pasif.
[ 6
markah ]
KHB KEMAHIRAN HIDUP TEKNIKAL (76)
18
Jawapan :
2a. Dua perbezaan buzer elektromagnet dan buzer dan buzer piezo.
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2b. Huraikan tiga perbezaan komponen aktif dan komponen pasif.
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KHB KEMAHIRAN HIDUP TEKNIKAL (76)
Rajah 11 (a) Rajah 11 (b)
19
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24. Rajah 11 (a) dan Rajah 4 (b) menunjukkan kaedah untuk
memaku pada bahan kerja.
Berdasarkan Rajah 11(a) dan Rajah 11(b),
a) (i) Pilih dan tentukan kaedah yang dapat menghasilkan cengkaman
yang kuat dan
kukuh.
[ 1
markah ]
KHB KEMAHIRAN HIDUP TEKNIKAL (76)
20
b) (ii) Nyatakan kedua-dua jenis kaedah yang digunakan dan huraikan
cara memaku
menggunakan kaedah-kaedah tersebut.
[ 6
markah ]
c) Nyatakan tiga langkah keselamatan yang perlu diamalkan sewaktu
melakukan kerja itu di bengkel sekolah.
[ 3
markah ]
Jawapan :
4a. Pilih dan tentukan kaedah yang menghasilkan cengkaman yang kuat
dan kukuh.
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4b. Nyatakan kedua-dua jenis kaedah yang digunakan dan huraikan
cara memaku
menggunakan kaedah-kaedah tersebut.
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KHB KEMAHIRAN HIDUP TEKNIKAL (76)
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4c. Tiga langkah keselamatan yang perlu diamalkan sewaktu
melakukan kerja itu.
i. .......................................................................................................
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ii. .......................................................................................................
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iii. .......................................................................................................
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KHB KEMAHIRAN HIDUP TEKNIKAL (76)