Sistem Penyejukan Enjin CoCu5 pt2

Quiz
•
Engineering
•
Vocational training
•
Medium
MOHAMMAD NAZRIN BUJANG
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the cooling system in an engine?Apakah fungsi utama sistem penyejukan dalam enjin?
To increase engine power. Untuk meningkatkan kuasa enjin.
To maintain the engine in the correct operating temperature.Untuk mengekalkan enjin pada suhu operasi yang betul.
To lubricate engine components. Untuk melincirkan komponen enjin.
To reduce fuel consumption. Untuk mengurangkan penggunaan bahan api.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to engine components if the engine runs too hot? Apakah yang berlaku kepada komponen enjin jika enjin berjalan terlalu panas?
Components under expand, causing excessive vibration. Komponen kurang mengembang, menyebabkan getaran berlebihan.
Engine compression lowers due to larger piston gaps. Mampatan enjin menurun disebabkan jurang omboh yang lebih besar.
Components over expand, leading to excessive wear and potential jamming.Komponen mengembang terlalu banyak, menyebabkan kehausan berlebihan dan kemungkinan tersekat.
No significant effect on components. Tiada kesan ketara pada komponen.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of cooling system is common in cars and offers more precise control over engine heat?Jenis sistem penyejukan manakah yang biasa digunakan dalam kereta dan menawarkan kawalan yang lebih tepat ke atas haba enjin?
Air cooling system. Sistem penyejukan udara.
Liquid cooling system. Sistem penyejukan cecair.
Both air and liquid cooling systems equally. Kedua-dua sistem penyejukan udara dan cecair secara sama rata.
Neither air nor liquid cooling systems. Bukan sistem penyejukan udara mahupun cecair.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an air-cooled system, how is heat transferred away from the engine?Dalam sistem penyejukan udara, bagaimana haba dipindahkan dari enjin?
Through coolant circulating in hoses. Melalui penyejuk yang beredar dalam hos.
Air travels through fins located at the cylinder bore. Udara bergerak melalui sirip yang terletak di lubang silinder.
By a radiator and fan assembly. Oleh radiator dan pemasangan kipas.
Through an expansion tank. Melalui tangki pengembangan.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the optimum operating temperature range for an engine?Apakah julat suhu operasi optimum untuk enjin?
Below 85∘C. Di bawah 85∘C.
85∘C−95∘C.
95∘C−120∘C.
Above 120∘C. Di atas 120∘C.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the thermostat in the cooling system? Apakah tujuan termostat dalam sistem penyejukan?
To pump coolant around the system. Untuk mengepam penyejuk di sekeliling sistem.
To cool the air entering the engine. Untuk menyejukkan udara yang masuk ke enjin.
To regulate the temperature of the coolant by directing its flow. Untuk mengawal suhu penyejuk dengan mengarahkan alirannya.
To store excess coolant. Untuk menyimpan penyejuk berlebihan.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if the pressure in the cooling system is too low?Apakah yang berlaku jika tekanan dalam sistem penyejukan terlalu rendah?
The coolant will boil at a higher temperature. Penyejuk akan mendidih pada suhu yang lebih tinggi.
Hotspots will appear, leading to uneven cooling and potential cracks.Titik panas akan muncul, menyebabkan penyejukan tidak sekata dan potensi keretakan.
The cooling system hoses and gaskets will leak or burst.Hos dan gasket sistem penyejukan akan bocor atau pecah.
The engine will run too cold. Enjin akan berjalan terlalu sejuk.
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