F5 PRO SC JIA JAN 1ST

Dalam engine diesel empat lejang, kedua-dua injap tertutup semasa

In four stroke diesel engine, both valves are closed during the

• Power and exhaust stokes

  Lejang kuasa dan lejang ekzos

• Induction and Exhuast strokes

  Lejang pengambilan dan lejang ekzos

• Compression and power strokes

  Lejang mampatan dan lejang kuasa

• Induction and compression stroke

  Lejang pengambilan dan lejang mampatan

Which of the following is not true about four stroke petrol engine and four stroke diesel engine?

Antara yang berikut, manakah tidak benar tentang enjin petrol empat lejang dan enjin diesel empat lejang?

• Petrol engine - The size of engine is smaller

  Diesel engine - The size of engine is bigger

  Engin petrol - saiz engin lebih kecil

  Engine diesel - saiz engine lebih besar

• Petrol engine - More efficient

  Diesel engine - Less efficient

  Engin petrol - Lebih cekap

  Engine diesel - Kurang cekap

• Petrol engine - Quieter

  Diesel engine - Noisier

  Engin petrol - Lebih senyak

  Engine diesel - Lebih bising

• Petrol engine - Using spark plug

  Diesel engine - Using fuel injector

  Engin petrol - Mengunakan palam pencucuh

  Engine diesel - Menggunakan muncung pemancit

Diagram 44 shows a four stroke petrol engine.

Rajah 44 menunjukkan satu enjin petrol empat lejang

What is the stage the stroke shown?

Apakah peringkat lejang yang ditunjukkan?

• Exhaust stroke/ Lejang ekzos

• Power stroke/ Lejang kuasa

• Compression stroke/ Lejang mampatan

• Intake stroke/ Lejang pengambilan

Diagram below shows a ticker tape

of a moving toy car.

Rajah bawah menunjukkan pita detik bagi kereta mainan yang bergerak.

What is the speed of the toy car?

Berapakah halaju kereta mainan itu?

[ Speed = Distance ÷ Time]

[ Halaju = Sesaran ÷ Masa ]

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A lorry moving at a velocity of 75 𝑘𝑚h−1 applies emergency brake and stop in 8 seconds. Calculate the acceleration of the lorry.

Sebuah lori yang bergerak dengan halaju 75𝑘𝑚𝑗−1 menekan brek kecemasan dan berhenti dalam masa 8 saat, hitungkan pecutan lori it.

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• 
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• 

Diagram below shows a ticker tape of a moving trolley.

Rajah bawah menunjukkan pita detik bagi troli yang bergerak.

What is the type of motion of the trolley?

Apakah jinis pergerakan troli?

• Zero velocity/ Halaju sifar

• Uniform velocity/ Halaju seragam

• Decreasing velocity/ Halaju berkurang

• Increasing velocity/ Halaju meningkat

A car moves at a speed of 50𝑚𝑠−1 in 5 minutes. Calculate the distance travelled by the car.

Sebuah kereta bergerak dengan kelajuan 50𝑚𝑠−1 dalam 5 minit. Hitungkan jarak perjalanan kereta itu.

[ Speed = Distance ÷ Time]

[ Laju = Jarak ÷ Masa ]

• 15 KM

• 25 KM

• 150 KM

• 250 KM

Apakah fungus aerial bagi sesebuah sistem penerima radio ringkas?

What is the aerial fungus for a simple radio receiver system?

• menerima pelbagai gelombang radio termodulasi dalam pelbagai frekuensi

  
  

  receiving various modulated radio waves in various frequencies

• menukarkan gelombang radio kepada isyarat audio

  
  

  converts radio waves to audio signals

• menukarkan arus elektrik kepada isyarat audio

  
  

  converts electrical current to audio signals

• menukarkan arus elektrik kepada gelombang bunyi

  
  

  converts electric current to sound waves

Komponen elektronik manakah yang dapat menukarkan gelombang bunyi kepada isyarat audio?

Which electronic components can convert sound waves to audio signals?

• mikrofon / microphone

• pengayun / oscillator

• litar penala / tuner circuit

• pembesar suara / speaker

Antara alat berikut, yang manakah terlibat dalam teknologi maklumat dan perhubungan?

Which of the following tools is involved in information and communication technology?

• kalkulator / calculator

• kompas / compass

• satelit / satellite

• meter laju / meter speed