Question
11
Apa fungsi pompa transfer bahan bakar?
What is the function of the fuel transfer pump?
Options
a
Memindahkan bahan bakar dari tangki penyimpanan ke settling tank atau service tank
To move fuel from the storage tank to the settling tank or service tank
b
Menyemprotkan bahan bakar langsung ke silinder
To spray fuel directly into the cylinder
c
Mengatur putaran turbocharger
To regulate turbocharger speed
d
Membuang sludge dari purifier
To discharge sludge from the purifier
Grade
Ungraded
Last Update
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Question
12
Apa yang dimaksud dengan bahan bakar berat pada kapal?
What is meant by heavy fuel in ships?
Options
a
Bahan bakar dengan viskositas dan berat jenis lebih tinggi yang umumnya perlu dipanaskan
Fuel with higher viscosity and specific gravity that generally needs heating
b
Bahan bakar yang hanya dipakai saat kapal sandar
Fuel used only when the ship is berthed
c
Bahan bakar yang dicampur minyak lumas agar lebih kental
Fuel mixed with lubricating oil to make it thicker
d
Bahan bakar yang hanya digunakan untuk ketel bantu
Fuel used only for the auxiliary boiler
Grade
Ungraded
Last Update
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Question
13
Mengapa bahan bakar berat perlu dipanaskan sebelum injeksi?
Why does heavy fuel need to be heated before injection?
Options
a
Agar viskositasnya turun sehingga mudah dipompa dan teratomisasi
So that its viscosity decreases and it can be pumped and atomized easily
b
Agar kandungan airnya bertambah untuk pendinginan
So that its water content increases for cooling
c
Agar titik nyalanya naik setinggi mungkin
So that its flash point rises as high as possible
d
Agar warna bahan bakar menjadi lebih cerah
So that the color of the fuel becomes brighter
Grade
Ungraded
Last Update
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Question
14
Tindakan perawatan rutin yang penting pada sistem bahan bakar adalah?
What is an important routine maintenance action on the fuel system?
Options
a
Membersihkan atau mengganti filter dan memeriksa kerja injektor
Cleaning or replacing filters and checking injector performance
b
Membiarkan endapan tetap di tangki agar tidak mengganggu aliran
Leaving sediment in the tank so it does not disturb flow
c
Menjalankan mesin tanpa separator setiap saat
Running the engine without a separator at all times
d
Mencampur bahan bakar dengan air tawar
Mixing fuel with fresh water
Grade
Ungraded
Last Update
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Question
15
Apa fungsi separator bahan bakar?
What is the function of the fuel separator?
Options
a
Memisahkan air dan kotoran halus dari bahan bakar dengan gaya sentrifugal
To separate water and fine dirt from the fuel by centrifugal force
b
Menaikkan tekanan bahan bakar ke nozzle
To increase fuel pressure to the nozzle
c
Mendinginkan bahan bakar dengan udara kamar mesin
To cool the fuel with engine room air
d
Mencampur dua jenis bahan bakar menjadi emulsi
To mix two types of fuel into an emulsion
Grade
Ungraded
Last Update
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Question
16
Apa tujuan utama sistem pendingin mesin kapal?
What is the main purpose of the engine cooling system on board?
Options
a
Menjaga temperatur kerja mesin tetap dalam batas aman
To keep the engine operating temperature within safe limits
b
Menaikkan tekanan kompresi di dalam silinder
To increase compression pressure inside the cylinder
c
Menambah kadar oksigen udara masuk
To increase the oxygen content of intake air
d
Mengurangi putaran poros engkol
To reduce crankshaft speed
Grade
Ungraded
Last Update
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Question
17
Media pendingin utama pada sirkuit tertutup mesin kapal umumnya adalah?
What is the main cooling medium in the closed cooling circuit of a ship’s engine?
Options
a
Air tawar yang diberi bahan kimia pengondisi
Fresh water treated with conditioning chemicals
b
Air laut langsung tanpa pendingin lanjutan
Direct seawater without further cooling
c
Bahan bakar diesel yang disirkulasikan
Diesel fuel circulated through the system
d
Udara dari turbocharger
Air from the turbocharger
Grade
Ungraded
Last Update
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Question
18
Alat yang mengedarkan air tawar pendingin di dalam mesin adalah?
What device circulates fresh cooling water through the engine?
Options
a
Pompa air tawar
Fresh water pump
b
Pompa bilga
Bilge pump
c
Pompa minyak lumas
Lubricating oil pump
d
Pompa bahan bakar tekanan tinggi
High-pressure fuel pump
Grade
Ungraded
Last Update
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Question
19
Apa fungsi thermostat pada sistem pendingin?
What is the function of the thermostat in the cooling system?
Options
a
Mengatur aliran pendingin agar temperatur mesin mencapai nilai kerja yang tepat
To regulate coolant flow so the engine reaches the proper operating temperature
b
Meninggikan tekanan minyak lumas saat mesin dingin
To increase lubricating oil pressure during cold start
c
Mengatur suplai bahan bakar ke pompa injeksi
To regulate fuel supply to the injection pump
d
Membuka katup buang secara otomatis
To open the exhaust valve automatically
Grade
Ungraded
Last Update
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Question
20
Jika temperatur air pendingin jaket terlalu tinggi, tindakan yang tepat adalah?
If the jacket cooling water temperature is too high, what is the correct action?
Options
a
Periksa aliran pendingin, kerja pompa, thermostat, dan cooler
Check coolant flow, pump operation, thermostat, and cooler
b
Tambahkan bahan bakar agar pembakaran lebih kuat
Add fuel so combustion becomes stronger
c
Tutup seluruh ventilasi ruang mesin
Close all engine room ventilation
d
Naikkan putaran mesin agar pendinginan lebih cepat
Increase engine speed so cooling becomes faster
Grade
Ungraded
Last Update
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