Dalam engine diesel empat lejang, kedua-dua injap tertutup semasa
In four stroke diesel engine, both valves are closed during the
F5 PRO SC JIA JAN 1ST
Quiz
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Science
•
12th Grade
•
Hard
Sharon Lee
Used 3+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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 ]
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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 ]
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