Question
1301
Mengapa pipa bahan bakar tekanan tinggi harus kuat dan presisi?
Why must the high-pressure fuel pipe be strong and precise?
Options
a
Karena harus menahan tekanan injeksi tinggi tanpa deformasi berarti
Because it must withstand high injection pressure without significant deformation
b
Karena berfungsi sebagai penukar panas utama
Because it serves as the main heat exchanger
c
Karena menampung sludge hasil pemurnian
Because it stores sludge from purification
d
Karena digunakan untuk saluran udara start
Because it is used for starting air lines
Grade
Ungraded
Last Update
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Question
1302
Apa manfaat penggunaan aftercooler setelah turbocharger?
What is the benefit of using an aftercooler after the turbocharger?
Options
a
Menaikkan kerapatan udara masuk sehingga pembakaran lebih baik
To increase intake air density so combustion improves
b
Menaikkan temperatur udara masuk agar bahan bakar cepat menguap
To increase intake air temperature so fuel evaporates faster
c
Mengurangi kebutuhan pelumasan turbocharger
To reduce turbocharger lubrication requirements
d
Menggantikan fungsi separator bahan bakar
To replace the function of the fuel separator
Grade
Ungraded
Last Update
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Question
1303
Apa fungsi udara bilas pada mesin dua langkah?
What is the function of scavenging air in a two-stroke engine?
Options
a
Mendorong gas buang keluar dan mengisi silinder dengan udara segar
To push out exhaust gases and fill the cylinder with fresh air
b
Mendinginkan service tank bahan bakar
To cool the fuel service tank
c
Menaikkan tekanan minyak lumas di bantalan
To increase lubricating oil pressure in the bearings
d
Menjalankan purifier tanpa motor listrik
To operate the purifier without an electric motor
Grade
Ungraded
Last Update
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Question
1304
Apa fungsi starting air distributor?
What is the function of the starting air distributor?
Options
a
Membagi udara start ke silinder sesuai urutan penyalaan
To distribute starting air to the cylinders according to the firing order
b
Memisahkan air dari udara bilas
To separate water from scavenging air
c
Mengatur viskositas bahan bakar berat
To regulate heavy fuel viscosity
d
Mendinginkan udara keluar kompresor
To cool air leaving the compressor
Grade
Ungraded
Last Update
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Question
1305
Apa fungsi starting air receiver?
What is the function of the starting air receiver?
Options
a
Menyimpan udara bertekanan untuk keperluan start mesin
To store compressed air for engine starting and pneumatic use
b
Menyimpan gas buang sebelum dilepas ke atmosfer
To store exhaust gas before it is released to the atmosphere
c
Menyimpan minyak lumas cadangan
To store reserve lubricating oil
d
Menyimpan air tawar pendingin ekspansi
To store fresh water for expansion cooling
Grade
Ungraded
Last Update
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Question
1306
Apa fungsi indicator cock pada cylinder head?
What is the function of the indicator cock on the cylinder head?
Options
a
Memeriksa apakah ada air atau minyak di silinder dan untuk blow through sebelum start
To check whether there is water or oil in the cylinder and to blow through before starting
b
Menaikkan tekanan kompresi pada saat start
To increase compression pressure during starting
c
Membuka aliran bahan bakar ke injektor
To open fuel flow to the injector
d
Mendinginkan ruang bakar saat beban penuh
To cool the combustion chamber at full load
Grade
Ungraded
Last Update
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Question
1307
Apa fungsi governor pada mesin diesel?
What is the function of the governor on a diesel engine?
Options
a
Mengatur suplai bahan bakar agar putaran mesin tetap sesuai beban
To regulate fuel supply so engine speed remains appropriate for the load
b
Mengatur aliran air laut ke ballast tank
To regulate seawater flow to the ballast tank
c
Menyaring partikel halus dari minyak lumas
To filter fine particles from lubricating oil
d
Membuang gas buang ke cerobong
To discharge exhaust gas to the funnel
Grade
Ungraded
Last Update
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Question
1308
Apa fungsi overspeed trip?
What is the function of the overspeed trip?
Options
a
Menghentikan atau mengurangi suplai bahan bakar saat putaran melebihi batas aman
To stop or reduce fuel supply when engine speed exceeds the safe limit
b
Menaikkan putaran mesin saat kapal kehilangan haluan
To increase engine speed when the ship loses heading
c
Menambah tekanan udara start saat mesin panas
To increase starting air pressure when the engine is hot
d
Membuka katup bilga secara otomatis
To open the bilge valve automatically
Grade
Ungraded
Last Update
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Question
1309
Apa ciri utama pompa sentrifugal?
What is the main characteristic of a centrifugal pump?
Options
a
Cocok untuk debit besar dengan aliran relatif kontinu
It is suitable for large flow rates with relatively continuous flow
b
Selalu menghasilkan debit tetap tanpa pengaruh head
It always produces a fixed flow regardless of head
c
Tidak boleh digunakan untuk air sama sekali
It must never be used for water
d
Bekerja hanya dengan udara tekan
It operates only with compressed air
Grade
Ungraded
Last Update
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Question
1310
Apa ciri utama pompa perpindahan positif?
What is the main characteristic of a positive displacement pump?
Options
a
Mampu menghasilkan tekanan tinggi dengan debit per putaran yang relatif tetap
It can produce high pressure with a relatively constant flow per revolution
b
Hanya dapat bekerja jika casing terisi udara
It can only operate if the casing is filled with air
c
Tidak cocok untuk oli dan bahan bakar
It is not suitable for oil and fuel
d
Tidak membutuhkan katup pengaman
It does not require a safety valve
Grade
Ungraded
Last Update
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