Question
1271
Sebelum memulai COW, apa yang harus dipastikan terkait atmosfer tangki?
Before starting COW, what must be ensured regarding the tank atmosphere?
Options
a
Tangki berada dalam kondisi inert dan parameter gas berada dalam batas aman.
The tank is in an inert condition and gas parameters are within safe limits.
b
Tangki telah terbuka penuh untuk ventilasi alami.
The tank has been fully opened for natural ventilation.
c
Semua residu telah disapu manual oleh awak kapal.
All residues have been manually swept out by the crew.
d
Suhu muatan telah turun di bawah suhu laut.
The cargo temperature has fallen below sea temperature.
Grade
Ungraded
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Question
1272
Apa fungsi utama mesin pencuci tangki pada sistem COW?
What is the main function of the tank cleaning machine in a COW system?
Options
a
Menyemprotkan minyak mentah bertekanan ke permukaan tangki untuk melepaskan residu.
To spray pressurized crude oil onto tank surfaces to loosen residues.
b
Memanaskan minyak mentah sebelum dipompa ke manifold.
To heat crude oil before it is pumped to the manifold.
c
Memisahkan gas hidrokarbon dari inert gas di tangki.
To separate hydrocarbon gas from inert gas in the tank.
d
Mengukur ullage secara otomatis selama bongkar muatan.
To measure ullage automatically during cargo discharge.
Grade
Ungraded
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Question
1273
Mengapa drainase atau stripping yang baik penting selama COW?
Why is good drainage or stripping important during COW?
Options
a
Agar minyak hasil pencucian tidak menggenang kembali dan mengurangi efektivitas pencucian.
So that the washed oil does not accumulate again and reduce cleaning effectiveness.
b
Agar tangki cepat terisi ballast selama operasi berjalan.
So that the tank fills quickly with ballast during the operation.
c
Agar mesin pencuci dapat berhenti berputar lebih awal.
So that the washing machine can stop rotating earlier.
d
Agar tekanan dalam pipa turun di bawah batas kerja pompa.
So that pressure in the pipeline falls below the pump working limit.
Grade
Ungraded
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Question
1274
Apa risiko utama jika COW dilakukan pada tangki yang tidak inert?
What is the main risk if COW is carried out in a tank that is not inert?
Options
a
Terjadinya atmosfer mudah terbakar yang meningkatkan bahaya ledakan.
The formation of a flammable atmosphere, increasing the danger of explosion.
b
Menurunnya viskositas muatan secara permanen.
A permanent reduction in cargo viscosity.
c
Rusaknya lapisan cat dek luar kapal.
Damage to the outer deck paint coating.
d
Berkurangnya akurasi draft survey.
Reduced accuracy of the draft survey.
Grade
Ungraded
Last Update
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Question
1275
Mengapa pembersihan saringan (strainer) pada jalur COW penting?
Why is cleaning the strainer in the COW line important?
Options
a
Untuk mencegah penyumbatan yang dapat menurunkan debit dan mutu semprotan pencuci.
To prevent blockage that could reduce flow rate and the quality of the washing spray.
b
Untuk menambah kandungan gas lembam dalam aliran minyak.
To increase the inert gas content in the oil flow.
c
Untuk mengurangi suhu minyak sebelum masuk nozzle.
To reduce oil temperature before it enters the nozzle.
d
Untuk memperbesar ukuran partikel residu di dalam tangki.
To enlarge the size of residue particles inside the tank.
Grade
Ungraded
Last Update
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Question
1276
Apa tujuan utama pemeriksaan kebocoran sebelum operasi COW dimulai?
What is the main purpose of leak checking before COW operations begin?
Options
a
Memastikan integritas sistem sehingga minyak mentah tidak bocor ke area berbahaya.
To ensure system integrity so that crude oil does not leak into hazardous areas.
b
Menentukan apakah tangki ballast dapat dipakai sebagai tangki muatan.
To determine whether ballast tanks can be used as cargo tanks.
c
Mengukur kecepatan kapal selama pembersihan tangki.
To measure ship speed during tank cleaning.
d
Menyesuaikan draft depan dan belakang tanpa perhitungan stabilitas.
To adjust forward and aft draft without stability calculations.
Grade
Ungraded
Last Update
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Question
1277
Dalam perencanaan operasi COW, mengapa urutan tangki yang akan dicuci perlu ditetapkan?
In planning a COW operation, why must the sequence of tanks to be washed be determined?
Options
a
Agar operasi kargo, trim, stabilitas, dan efisiensi pencucian dapat dikendalikan dengan baik.
So that cargo operations, trim, stability, and cleaning efficiency can be properly controlled.
b
Agar awak kapal bebas memilih tangki secara acak saat operasi berlangsung.
So that the crew may freely choose tanks at random during the operation.
c
Agar semua tangki dapat dicuci bersamaan tanpa melihat kapasitas pompa.
So that all tanks may be cleaned simultaneously regardless of pump capacity.
d
Agar kebutuhan inert gas dapat diabaikan.
So that inert gas requirements may be ignored.
Grade
Ungraded
Last Update
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Question
1278
Apa fungsi daftar periksa (checklist) sebelum pelaksanaan COW?
What is the function of a checklist before carrying out COW?
Options
a
Memverifikasi bahwa seluruh persyaratan keselamatan dan operasional telah dipenuhi.
To verify that all safety and operational requirements have been met.
b
Menggantikan isi manual operasi kapal.
To replace the content of the ship’s operating manual.
c
Menentukan nilai komersial muatan yang tersisa.
To determine the commercial value of the remaining cargo.
d
Menghitung konsumsi bahan bakar mesin induk.
To calculate the main engine fuel consumption.
Grade
Ungraded
Last Update
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Question
1279
Mengapa komunikasi antara anjungan, CCR, dan dek penting selama operasi COW?
Why is communication between the bridge, CCR, and deck important during COW operations?
Options
a
Karena perubahan tekanan, urutan tangki, dan kondisi keselamatan harus dipantau serta dikoordinasikan terus-menerus.
Because pressure changes, tank sequence, and safety conditions must be continuously monitored and coordinated.
b
Karena hanya anjungan yang boleh menjalankan pompa kargo secara manual.
Because only the bridge is allowed to operate cargo pumps manually.
c
Karena CCR bertanggung jawab atas pemeriksaan klasifikasi kapal.
Because the CCR is responsible for ship classification inspections.
d
Karena dek harus menentukan sendiri kadar oksigen tanpa alat ukur.
Because the deck crew must determine oxygen content themselves without instruments.
Grade
Ungraded
Last Update
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Question
1280
Apa yang harus dipantau pada pressure gauge selama COW berlangsung?
What must be monitored on the pressure gauge during COW?
Options
a
Tekanan kerja sistem untuk memastikan mesin pencuci menerima suplai yang memadai.
The system working pressure to ensure that the washing machines receive adequate supply.
b
Hanya suhu muatan pada tangki slop.
Only the cargo temperature in the slop tank.
c
Hanya putaran mesin induk kapal.
Only the ship’s main engine revolutions.
d
Hanya kecepatan angin di geladak terbuka.
Only the wind speed on the open deck.
Grade
Ungraded
Last Update
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