SULIT 3764/1 & 23764/1 &2 TeknologiKejuruteraan

SEKTOR SEKOLAH BERASRAMA PENUHBAHAGIAN SEKOLAH

KEMENTERIAN PELAJARAN MALAYSIA

PEPERIKSAAN PERTENGAHAN TAHUN TINGKATAN 4 / 2006

SKEMA PEMARKAHANKERTAS 1 & 2

SKEMA DIAGNOSTIK UPT F4 2006Section A

01. Engineering Technology is a scientific study of converting natural resources into tools and machines which eventually will fulfill the needs and demands of ever-changing society.

(3 marks)

02. i) Increase in the employment opportunities.ii) Activate manufacturing industry.iii) Service providers such as banking and insurance transaction.iv) Will result in the increase of the country’s revenue.

(Relevance= 4 marks)

03. i) Medium ii) Total work system (2 marks)04. C, A & B (3 marks)05. 3, 1, 4 & 2 (4 marks)06. i) Testing ii) Holding\Clamping iii) Driving (3 marks)07. i) Calculation must be shown (4.00 + (18 x 0.18)) = 4.18 mm

ii) A = Anvil B = Barrel / Hub(2 marks)(2 marks)

08.

21.02 mm

(2 marks)

09. i) M = Metric Unit, 15 = Major Diameter & 1.25 = Thread Pitchii) Drill size (Calculation shown) = 15 – 1.25 = 13.75 mm

(3 marks)(1 mark)

10. 1, 4, 2 & 3 (4 marks)11. A = False, B = False, C = True & D = True (4 marks)12. i) A ii) C iii) B (3 marks)13. Any two from list:

i) High compression strength ii) Durable iii) Water tightiv) Can be casted iv) Fairly low tensile strength

(2 marks)

14. Thermoplastic Thermosetting Plastic- Can become soft when

reheated to be moulded to other shapes.

- Durable, soft.- Become soft & may melt at

a temperature 93ºC.

Any two from list = (2 marks)

- Cannot be remoulded to other shapes through reheating process.

- Rigid, hard & strong (compared to thermoplastic) & fairly brittle.

- Can withstand high temperature up to 260 ºC.

Any two from list = (2 marks)

(4 marks)

15. (i) Human with machine (ii) Machine with machine (iii) Machine with human

(3 marks)

16. 47kΩ ± 20% (i) Yellow (ii) Violet (iii) Orange (3 marks)17. Select three only:

(i) The number of windings or turns of the coil.(ii) The diameter of the coil.(iii) The type of the core.(iv)The length of the coil.

(3 marks)

18. (a)

(b)

(3 marks)

(1 mark)

(1 mark)

(1 mark)

19.Pp = Ps = 2400W (1m)

Ip Vp = 2400Ip (240) = 2400Ip = 2400

240

AC input voltage (i.e)

Voltage after transformer

Voltage after component (i)

Voltage after component (iii)

(i) R (ii) S (iii) P

Ip = 10A (1m)

Is Vs = 2400WIs(12) = 2400

Is = 2400 12

= 200A (1m)

V = I RR = Vs Is

= 12 200= 0.06 Ω (1m)

(4 marks)

20. i) National development ii) Commerce iii) Social interaction (3 marks)21. A, D & E (3 marks)22. C, E & D (3 marks)23. LAND

i) Construction of roadii) Traffic control systemiii) Bridgesiv) Flow of trafficv) Types of vehiclevi) Capacity & weight

AIRi) Construction of Airportsii) Control systemiii) Transportation system in the air port and it surroundingsiv) Capacity & weight

WATERi) Construction of port & jettiesii) Transportation System in ports & jettiesiii) Capacity & weight

Any 3 Answers

(3 marks)

24. A, B & C (3 marks)25. Transportation

SystemLand Air Water

Mode of Transportation

Trishaw Hot Air Balloon Rowing Boat

Advantages

Good for health Low cost maintenance Save fuel Antique Etc.

Decrease the Fuel usage It can overcome land barriers Etc.

Good For Health

Etc.(3 marks)

SKEMA DIAGNOSTIK UPT F4 2006

Section B

a) Work Types Tasks Marks

A (Tapping)

i) Drill = 10 – 1.5 = 8.5 mm (diameter)ii) Use taper tap.iii) Turn wrench clock wise.iv) Turn wrench anti clock wise.v) Use plug tapiv) Use bottoming tap.

1 x 6 = 6

B (Counter Sunk)i) Mark point with centre punch.ii) Drill hole with 10 mm diameter.iii) Enlarge to 12 mm diameter hole with ‘rose’

1 x 3 = 3

C (Groove)i) Mark point C with centre punch.ii) Drill hole with 30 mm diameter.iii) Cut straight line with hacksaw.

1 x 3 = 3

Others Sidei) Clamp the plate.ii) Cut straight line with hacksaw.iii) Filing / Finishing work.

1 x 3 = 3

b) 1. Drill (1 x 5 = 5 marks)2. C-clamp 5. File3. Rose (Drill Bit) 6. Tap4. Hack saw 7. Centre punch