Question
2421
Apa fungsi fuel pump plunger dalam fuel injection pump?
What is the function of the fuel pump plunger in the fuel injection pump?
Options
a
Membangkitkan tekanan tinggi untuk mengalirkan bahan bakar ke injector
To generate high pressure to deliver fuel to the injector
b
Mendinginkan nozzle injector dengan air tawar
To cool the injector nozzle with fresh water
c
Mencampur udara dan bahan bakar sebelum purifier
To mix air and fuel before the purifier
d
Membuka katup buang silinder secara mekanis
To open the cylinder exhaust valve mechanically
Grade
Ungraded
Last Update
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Question
2422
Mengapa sistem bahan bakar perlu di-vent setelah pekerjaan perawatan?
Why does the fuel system need to be vented after maintenance work?
Options
a
Untuk mengeluarkan udara dari pipa agar suplai bahan bakar kembali stabil
To remove air from the piping so that fuel supply becomes stable again
b
Untuk menaikkan kadar air di dalam bahan bakar
To increase the water content in the fuel
c
Untuk menurunkan tekanan injeksi ke nol
To reduce injection pressure to zero
d
Untuk menambah viskositas bahan bakar berat
To increase the viscosity of heavy fuel oil
Grade
Ungraded
Last Update
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Question
2423
Apa fungsi governor pada mesin induk atau mesin bantu?
What is the function of the governor on the main engine or auxiliary engine?
Options
a
Mengatur suplai bahan bakar agar putaran mesin tetap sesuai beban
To regulate fuel supply so that engine speed remains in accordance with the load
b
Mengatur kadar garam air pendingin
To regulate the salt content of cooling water
c
Mengatur tekanan udara di dalam tabung start
To regulate air pressure inside the starting air receiver
d
Mengatur suhu sludge di purifier
To regulate sludge temperature in the purifier
Grade
Ungraded
Last Update
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Question
2424
Apa fungsi overspeed trip pada mesin diesel?
What is the function of the overspeed trip on a diesel engine?
Options
a
Menghentikan atau membatasi kerja mesin saat putaran melebihi batas aman
To stop or limit engine operation when speed exceeds the safe limit
b
Menaikkan putaran mesin saat kapal olah gerak
To increase engine speed during maneuvering
c
Menambah tekanan bahan bakar agar pembakaran sempurna
To increase fuel pressure so that combustion becomes perfect
d
Menurunkan salinitas air tawar pendingin
To reduce the salinity of fresh cooling water
Grade
Ungraded
Last Update
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Question
2425
Apa fungsi turbocharger pada mesin diesel kapal?
What is the function of the turbocharger on a marine diesel engine?
Options
a
Memanfaatkan energi gas buang untuk memampatkan udara masuk ke mesin
To use exhaust gas energy to compress the air entering the engine
b
Memanfaatkan air laut untuk menaikkan tekanan bahan bakar
To use seawater to increase fuel pressure
c
Memutar poros engkol saat start dingin
To rotate the crankshaft during cold starting
d
Mendinginkan piston dengan gas buang
To cool the piston with exhaust gas
Grade
Ungraded
Last Update
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By -
Question
2426
Apa fungsi scavenge air cooler atau charge air cooler?
What is the function of the scavenge air cooler or charge air cooler?
Options
a
Mendinginkan udara tekan dari turbocharger agar densitas udara meningkat
To cool the compressed air from the turbocharger so that air density increases
b
Memanaskan udara bilas agar pembakaran lebih lambat
To heat the scavenge air so that combustion slows down
c
Memisahkan minyak lumas dari udara bilas
To separate lubricating oil from scavenge air
d
Menampung kondensat dari tabung udara start
To collect condensate from the starting air receiver
Grade
Ungraded
Last Update
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Question
2427
Energi apa yang dimanfaatkan turbocharger untuk memutar turbin?
What energy does the turbocharger use to rotate the turbine?
Options
a
Energi gas buang
Exhaust gas energy
b
Energi minyak lumas
Lubricating oil energy
c
Energi air pendingin
Cooling water energy
d
Energi listrik dari generator darurat
Electrical energy from the emergency generator
Grade
Ungraded
Last Update
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By -
Question
2428
Apa akibat jika sisi udara turbocharger atau filter udara kotor?
What is the effect if the air side of the turbocharger or the air filter is dirty?
Options
a
Pasokan udara ke mesin berkurang dan pembakaran menjadi kurang baik
Air supply to the engine is reduced and combustion becomes poorer
b
Tekanan udara start bertambah otomatis
Starting air pressure increases automatically
c
Bahan bakar menjadi lebih encer
The fuel becomes thinner
d
Purifier bahan bakar bekerja dua kali lebih cepat
The fuel purifier works twice as fast
Grade
Ungraded
Last Update
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By -
Question
2429
Apa tujuan pemeriksaan indicator diagram atau data tekanan silinder?
What is the purpose of checking the indicator diagram or cylinder pressure data?
Options
a
Menilai kondisi pembakaran dan kompresi tiap silinder
To assess the combustion and compression condition of each cylinder
b
Mengukur kadar minyak di air bilga
To measure oil content in bilge water
c
Menentukan titik nyala bahan bakar
To determine the flash point of the fuel
d
Mengetahui jumlah udara di header tank
To find out the amount of air in the header tank
Grade
Ungraded
Last Update
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By -
Question
2430
Tekanan kompresi yang rendah pada satu silinder dapat mengindikasikan apa?
What can low compression pressure in one cylinder indicate?
Options
a
Kebocoran katup, ring piston aus, atau keausan liner
Valve leakage, worn piston rings, or liner wear
b
Level air bilga terlalu tinggi
Bilge water level is too high
c
Tekanan udara start terlalu besar
Starting air pressure is too high
d
Putaran separator terlalu rendah
Separator speed is too low
Grade
Ungraded
Last Update
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