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SULIT 2 3764/2

Section ABahagian A

Answer ONE question only [20 marks]Jawab SATU soalan sahaja [20 markah]

1. Figure 1 shows a component made from a mild steel plate measuring 100 mm x

80mm x 4mm.

Rajah 1 menunjukkan satu komponen yang diperbuat daripada plat keluli

berukuran 100mm x 80mm x 4mm.

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SULIT 3 3764/2

(a) With the help of sketches, describe the steps to make: Dengan bantuan lakaran, huraikan langkah-langkah untuk membuat :

(i) The thread M10 x 1.25

Ulir M10 x 1.25

(ii) U shaped curveLengkung berbentuk U

[13 marks]

[13 markah]

(b) List two tools use for each activity below.

Senaraikan dua alat yang digunakan bagi setiap aktiviti di bawah.

(i) Marking

Menanda

(ii) Cutting

Memotong

[4 marks][4 markah]

(c) State three safety rules when using the drilling machine.

Nyatakan tiga langkah keselamatan sewaktu menggunakan mesin gerudi.

[3 marks][3 markah]

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SULIT 4 3764/2

2.

Figure 2Rajah 2

Figure 2 shows pad foundation and column for a house.

Rajah 2 menunjukkan satu asas pad dan tiang untuk sebuah rumah.

(a) State 4 factors in selecting the type of foundation.

Nyatakan 4 faktor pemilihan jenis asas.

[4 marks][4 markah]

With the aid of sketches, describe briefly the steps to erect the pad

foundation.Dengan bantuan lakaran, huraikan langkah-langkah untuk membina asaspad.

[6 marks]

Pad foundationAsas pad

Column

Tiang

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SULIT 5 3764/2

Section BBahagian B

Answer ONE question only [20 marks]Jawab SATU soalan sahaja [20 markah]

Figure 3

Rajah 3

3. Figure 3 shows a simple hydraulic system to lift up load when the force F is acted to

Force ( F )

Daya F

150 N

Omboh A

Piston A

0.3 m

Omboh B

Piston B

0.6 mS = 0. 4m

XX

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SULIT 6 3764/2

(ii) The maximum load can be lift up by piston B if the system is equilibrium.

Beban maksimum yang boleh diangkat oleh piston B jika sistem berada dalam

keadaan seimbang.

[5 marks][5 markah]

(b) If the time taken for piston to lift up the load is 0.5 minute. Calculate:

Sekiranya masa yang diperlukan untuk mengangkat beban X ialah 0.5 minit.

Kirakan:

(i) WorkKerja yang dilakukan

[3 markah][3 marks]

(ii) PowerKuasa

[4 marks][4 markah]

(c) State TWO characteristics of hydraulic fluid.

Nyatakan DUA ciri-ciri bendalir hidraulik.

[2 marks][2 markah]

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SULIT 7 3764/2

4.

Figure 4

Rajah 4

Figure 4 shows the floor plan of a house. The owner of the house plans to extent the

kitchen area and the balcony area. While Figure 5 shows the column which are to be

d h i f ki h d b l il f h i d h

Extension of patio

Anjung tambahan

3.0m

3.4m

3.0m

Extension of kitchen

Dapur tambahan

5.6mm

3.0m

3.7m

4.7m

3.4m

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SULIT 8 3764/2

DETAIL WORK

BUTIRAN KERJA BINAAN

RATE (RM)

KADAR (RM)Foundation

Asas padRM 200 / m3

Column

TiangRM 170 / m3

Digging the foundation hole with depth not more than 1.5m

Korekan lubang asas tidak melebihi 1.5m dalam.

RM 50 /m3

Foundation level of ground floor slab with thickness 150mm.

Lapisan asas bawah lantai dengan ketebalan 150mm.RM 65 /m3

Tile up the brick at the extension of kitchen.

Mengikat bata disekeliling bahagian dapur tambahanRM 180 /m

Wall finishing.

Melepa bahagian dinding.

RM 100 /m

Table 1

Jadual 1

0.4m

0.4m

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SULIT 9 3764/2

(a) With the aid of the information in Table 1, complete the dimension form in Appendix

A.

Berdasarkan maklumat dalam Jadual 1, lengkapkan borang dimensi di dalam

Lampiran A.

[8 marks]

[8 markah]

(b) Next, complete the quantity list form in appendix B.

Seterusnya, lengkapkan borang senarai kuantiti pada Lampiran B.

[12 marks]

[12 markah]

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SULIT 10 3764/2

Section CBahagian C

AnswerALL questions [60 marks]JawabSEMUA soalan [60 markah]

Figure 6

Rajah 6

5. A participant of a camping trip is asked to bring several tools during the program. Figure 6 shows

th t l Wh i th t l th ti i t f d l bl b l

KnifePisau

Hand sawGergaji tangan

Bottle openerPembuka botol

ScrewdriverPemutar skru

ScissorGunting

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SULIT 11 3764/2

(a) With the aid of sketch, suggest and design a tool which can overcome the problems mentioned

above.Dengan bantuan lakaran, cadang dan rekabentukkan satu alat yang dapat mengatasi masalah di

atas.

[16 marks]

[16 markah]

(b) Give TWO materials which are suitable to make the tool.

Berikan DUA bahan yang sesuai untuk menghasilkan alat tersebut.

[2 marks]

[2 markah]

(c) State TWO mechanical properties for the material that you choose in (b).

Nyatakan DUA sifat mekanik bagi bahan yang anda pilih di dalam (b).

[2 marks][2 markah]

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6. Nowadays, telephone system is widely used all over the world. The system allows two way

comunication for data and voice transmission. A set of telephone consists of a transmitter and receiver.

Figure 7 shows a basic circuit of a telephone set.

Sistem telefon merupakan suatu sistem perhubungan yang sangat meluas penggunaannya di

seleuruh dunia pada hari ini. Ianya membolehkan penghantaran suara atau data secara dua

hala. Satu set telefon terdiri daripada bahagian penghantar dan penerimanya sendiri.Rajah 7

menunjukkan litar asas bagi satu set telefon.

Dialer Circuit

Litar Pendail

Tone CircuitLitar Dering

MicrophoneMikrofon

1

2

Hook switchSuis hook

To telephone

exchangeTalian ke ibu

sawat

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SULIT 13 3764/2

Rajah 8

Figure 8

b) Based on Figure 8, explain briefly the process of local call from telephone A to telephone

B.Berdasarkan Rajah 8, terangkan proses panggilan tempatan daripada telefon A kepada

telefon B.

[10 marks]

[10 markah]

c) A long distance call telephone system uses 4 wires cabling and signal multiplexing

method. State the function of using the 4 wires cabling. Next, explain briefly the meaning

of signal multiplexing.

Sistem panggilan telefon jarak jauh menggunakan sambungan talian 4 dawai dan

Telephone A

Telefon ATelephone B

Telefon BLocal exchange

Ibusawat tempatan

2 wires lineTalian 2 dawai

2 wires lineTalian 2 dawai

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SULIT 14 3764/2

7.

Product AProduk A

Figure 9

Rajah 9

Figure 9 shows a hydraulic circuit system which is designed to push a moving mould to produce

product A in a press work process.

Rajah 9 menunjukkan satu sistem hidraulik yang direka bentuk untuk menolak acuan bergerak

bagi menghasilkan produk A di dalam proses kerja tekan.

The operation of circuit as followed:

Hydraulic cylinder

Silinder hidraulik

Fixed mould

Acuan tetap

Moving mould

Acuan bergerak

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SULIT 15 3764/2

Based on Appendix C,

Berdasarkan Lampiran C,

(a) i) Choose a circuit which fulfill the above characteristic and give your reason.

Pilih litar yang memenuhi ciri-ciri di atas dan berikan alasan anda.

[4 marks]

[4 markah]

ii) Explain briefly the reason of rejecting the other circuits.

Berikan alasan kenapa anda menolak litar-litar yang lain.

[6 marks]

[6 markah]

(b) During operation, the piston cannot be stopped immediately at any middle position.

Semasa beroperasi, omboh tidak dapat dihentikan pada mana-mana kedudukan

pertengahan.

i) Redraw the modified circuit which can enable the piston to be stopped in the middle

position by using a lever.

Lakarkan semula litar yang telah diubahsuai agar omboh dapat dihentikan

di pertengahan kedudukan semasa beroperasi dengan menggunakan kawalan tuil.

[4 marks]

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SULIT 16 3764/2

APPENDIX A

LAMPIRAN ADimension form

Borang dimensi

DIMENSI

DIMENSION

KETERANGAN

DISCRIPTION

41.01.0

0.8

0.8m3

Digging the foundation hole with depth not

more than 1.5m

Korekan lubang asas tidak melebihi 1.5m

dalam.

1

6.8

3.0

0.15

3.06m3

Foundation level of ground floor slab with

thickness 150mm (kitchen area).

Lapisan asas bawah lantai dengan ketebalan

150mm (bahagian dapur).

1

Foundation level of ground floor slab with

thickness 150mm (extension of patio).

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Borang Senarai Kuantiti Quantity List Form

BIL.

NUM.

BUTIRAN KERJA

WORK PARTICULARS

UNIT

UNIT

KUANTITI

QUANTITY

KADAR

RATE

JUMLAH

TOTAL

1

Digging the foundation

hole with depth not more

than 1.5m

Korekan lubang asas tidak

melebihi 1.5m dalam.

m3 3.2

2 m3

3 m3

4

Foundation level of ground

floor slab with thickness

150mm (kitchen area).

Lapisan asas bawah lantai

dengan ketebalan 150mm

(bahagian dapur).

m3 3.06

5 m3

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SULIT 2 3764/2

Appendix CLampiran C

3764/2 SULIT

M MM

CIRCUIT ALITAR A

CIRCUIT BLITAR B

CIRCUIT CLITAR C

18