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8/8/2019 Kelantan- P2
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SULIT 3764/2
Section A
Bahagian A
Answer any one question
Jwab satu soalan sahaja[20 marks]
1 Figure 1 shows two components mild steel for a product consisting of parts A and B.
Rajah 1 menunjukkan dua komponen keluli lembut bagi satu produk yang terdiri daripada
bahagian A dan bahagian B.
Figure 1
Rajah 1(a) Explain the fitting works needed to produce part B, measuring 110mmX80mmX 5mm.
Terangkan langkah kerja gegas untuk menghasilkan bahagian B , yang berukuran
110mm X 80mm X 5mm.Sketch a diagram to support your answer.
Lakar gambarajah untuk membantu jawapan anda.[14m]
(b) Describe the steps required to joint part A and part B using gas welding method. Huraikan proses untuk menyambungkan bahagian A dan bahagian B menggunakan
kaedah kimpalan gas.[6m]
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M12 X 1.75
40
80
5
90
20
40 60
20
Part A
Bahagian A
Part B
Bahagian B
20
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2 Figure 2 shows parts of a wooden roof structure.
Rajah 2 menunjukkan sebahagian daripada struktur bumbung kayu.
Based on Figure 2:
Berdasarkan Rajah 2:
a) (i) Name the type of wooden roof structure.
Namakan jenis struktur bumbung kayu itu.
(ii) Name the parts labeled A, B, C and D.
Namakan bahagian yang berlabel A, B, C dan D. [5 m]
b) Explain the method of constructing the wooden roof structure using interlocking tiles.
Terangkan kaedah pembinaan bumbung kayu itu menggunakan atap genting berkait
panca.Sketch a labelled diagram to support your answer.
Lakar gambar berlabel untuk membantu jawapan anda. [15 m]
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Figure 2
Rajah 2
AB
C
D
5.5m
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Section B
Bahagian B
Answer any one question
Jwab satu soalan sahaja[20 marks]
Figure 3
3 Figure 3 shows a cross section of a land profile that was sketch out by a student before carry
out leveling survey.
Rajah 3 menunjukkan keratin rentas profil tanah yang dilakar oleh seorang pelajar sebelum
menjalankan ukur aras
a) By using Appendix A1, complete the field book Dengan menggunakan Lampiran A1 , lengkapkan catatan kerja luar. [12m]
b) Plot the land profile in Appendix A2.
Plot graf profil tanah pada Lampiran A2 [8m]
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Profile section of the leveling area
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Figure 3
4. Figure 3 shows a hydraulic circuit that are used to lift up a load X
Rajah 3 menunjukkan litar hidraulik yang digunakan untuk mengangkat beban X
a) State which component should be adjusts if the values of pressure need to be changed.
Nyatakan komponen manakah yang harus dilaras jika nilai tekanan perlu diubah.[2m]
b) Modify by re-sketch the circuit and label the components that are used to fulfill the
following criteria
Ubahsual dengan melakar semula litar itu dan labelkan komponen yang digunakan untuk
memenuhi criteria-kriteria berikut:
• Can be stop at any position
Boleh berhenti di mana-mana kedudukan
• The speed of the piston can be controlled Kelajuan piston boleh dikawal [6m]
c) i) Calculate the maximum load that can be raise up by the piston if the pressure gauge
shows reading 2 kPa.
Hitung beban maksima yang boleh diangkat jika tolok tekanan menunjukkan bacaan
2kPa
ii) If the piston moves 0.3m upward in 30 seconds, calculate the values of work and
power
produced.
Jika piston bergerak 0.3m ke atas selama 30 saat, hitungkan nilai kerja dan kuasadihasilkan [12m]
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Section C
Answer all questions
[60 marks]
Figure 5
Rajah 5
5 Figure 5 shows a schematic diagram of a direct on line circuit that is purposes to start and
stop the motor M1 and M2 simultaneously.
Rajah 5 menunjukkan litar skimetik jenis kawalan terus pada talian bertujuan untuk memuladan menghentikan motor M1 dan M2 serentak.
a. State the connection type of motor M1 and M2
Nyatakan jenis sambungan motor M1 dan motor M2 [2m]
b. State the function of OR1
Nyatakan fungsi OR1 [2m]
c. By using Appendix B, complete and label all components in the modification schematic
circuit so that its will fulfill the criteria as below.
Dengan menggunakan Lampiran B , lengkapkan dan labelkan semua komponen dapat litar skimetik yang diubahsuai supaya memenuhi spesikasi kawalan berikut:
• Motor M1 and M2 is started simultaneously
MotorM1 dan motor M2 dihidupkan serentak.
• When stop the motors, motor M1 must be first and followed motor M2
Apabila menghentikan motor, motor M1 dihentikan dahulu dan diikuti menghentikanmotor M2.
• Different overload relay (OR) to stop the motor.
Geganti beban lampau berlainan bagi setiap motor. [16m]
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Figure 6
Rajah 6
6. Figure 6 shows a method to stamp paper by pneumatic system.
Rajah 6 menunjukkan satu kaedah mencetak kertas dengan sistem pneumatic
Criteria’s of cylinder movement are as below:
Kraiteria pergerakan selinder adalahseperti berikut
•
Piston presses the stamping block as user pressing the push-button. Piston menekan blok pencetak apabila pengguna menekan punat tekan.
• Piston moves back to original position as push-button released.
Piston kembali pada kedudukan asal apabila punat tekan dilepaskan.
a) State suitable types of cylinder and directional control valve (DCV) for the pneumatic
system.
Nyatakan jenis selinder dan injap kawalan arah yang sesuai untuk sisten pneumatic itu.[2m]
b) State a component should be added in order to control piston movement speed.
Nyakan satu komponen yang perlu ditambah untuk mengawal kelajuan pergerakan piston. [2m]
c) Base on figure 6 :
Berdasarkan rajah 6:
i) Sketch a schematic circuit
Lakarkan litar skimetik dan terangkan [8m]
ii) Explain the operation principle of the circuit.
Terangkan prinsip kendalian litar itu. [8m]
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Figure 7 Rajah 7
7. Figure 7 shows a swing has been used at a playground.
Rajah 7 menunjukkan sebuah buaian yang digunakan di taman permainan kanak-kanak.
a) The swing was fixed and exposed to weather that caused the column and joist part
become rot.
Buaian ini dipasang pada kawasan yang terdedah kepada cuaca menyebabkan
bahagian tiang dan alang menjadi reput.
Suggest other suitable material to be used to solve the problem and give three reasonsto support your selection.
Cadangkan bahan lain yang sesuai digunakan untuk mengatasi masalah itu dan
berikan tiga alasan bagi menyokong pemilihan anda. [5m]
b) During swinging, these problem were noted:
Semasa buaian itu digunakan, beberapa masalah dikenalpasti:
• The column are shaking.
Tiang bergoyang
• Not safe because the user easily slip backward when sitting on the swing.Tidak selamat kerana pengguna boleh tergelincir ke belakang.
• The rope easily wear out and tear off especially at the joist.
Tali buaian mudah haus dan putus terutama di bahagian alang.
With the help of labelled sketches, describe the modification that should be done to the
swing to solve the problems.
Dengan bantuan lakaran berlabel, terangkan pengubahsuaian yang perlu dilakukan
pada buaian itu supaya dapat mengatasi masalah-masalah di atas.
[15 M]
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END OF QUESTION PAPER
KERTAS SOALAN TAMAT
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SULIT 3764/2
Appendix A1
Lampiran A1
Name ……………………………………………………….. Form .................……
Back sight
Pandangan
Belakang
Intermediate
sight
Pandangan
Antara
Fore sight
Pandangan
Hadapan
Rise
Naik Fall
Turun
Reduce
level
Aras laras
Chain
RantaianRemark
Catatan
95.850 BA1 = 95.850
1.950 1.305 94.545 0 A
1.125 0.825 20 B
1.200 40 C
1.590 0.390 94.905 60 D
80 E1.220 100 F
0.740 96.835 120 G
0.845 0.105 BA2 = 96.700
(To be used to answer Question 3. a))
( Digunakan untuk menjawab Soalan 3. a))
Appendix A2
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Lampiran A2
.Name ……………………………………………………….. Form .................…
Skala tegak 1:100
Skala mendatar 1:1000
Andaian Datum
70,000 m
Aras Laras
Rantaian 0 .
0 0
2 0 .
0 0
4 0 .
0 0
6 0 .
0 0
8 0 .
0 0
1 0 0 .
0 0
(To be used to answer Question 3. b))
( Digunakan untuk menjawab Soalan 3. b))
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