Question
2821
Refrigeran yang bercampur udara lembap dalam sistem dapat membentuk asam yang berbahaya bagi…
Refrigerant mixed with moist air in the system can form acid that is harmful to…
Options
a
Belitan motor hermetik, logam internal, dan oli pelumas.
Hermetic motor windings, internal metal parts, and lubricating oil.
b
Kipas evaporator dan engsel pintu ruang dingin saja.
Only the evaporator fan and cold room door hinges.
c
Cat luar lambung dan rantai jangkar.
The outer hull paint and anchor chain.
d
Pompa ballast dan pipa sounding tank.
Ballast pumps and sounding pipes.
Grade
Ungraded
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Question
2822
Pemeriksaan level oli kompresor penting dilakukan untuk memastikan…
Checking compressor oil level is important to ensure…
Options
a
Pelumasan kompresor cukup selama operasi.
Adequate compressor lubrication during operation.
b
Receiver cair selalu penuh saat start.
The liquid receiver is always full at start.
c
Thermostat bekerja tanpa sumber listrik.
The thermostat works without electrical power.
d
Evaporator tidak memerlukan defrost.
The evaporator does not require defrosting.
Grade
Ungraded
Last Update
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Question
2823
Jika oli kompresor tampak berbusa setelah start, kemungkinan penyebabnya adalah…
If compressor oil appears foamy after start-up, one possible cause is…
Options
a
Refrigeran larut dalam oli lalu menguap dari carter.
Refrigerant dissolved in the oil and then boiling off from the crankcase.
b
Kondensor terlalu bersih sehingga pendinginan berlebih.
The condenser being too clean so that overcooling occurs.
c
Back pressure valve menutup terlalu rapat.
The back pressure valve closing too tightly.
d
Drain line evaporator tersumbat oleh kerak.
The evaporator drain line being blocked by scale.
Grade
Ungraded
Last Update
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Question
2824
Pada sistem refrigerasi sekunder, fungsi brine adalah…
In a secondary refrigeration system, the function of brine is…
Options
a
Sebagai media pembawa dingin dari evaporator ke ruang atau beban yang didinginkan.
To act as a cold-carrying medium from the evaporator to the space or load being cooled.
b
Sebagai oli pelumas khusus untuk kompresor.
To serve as a special lubricating oil for the compressor.
c
Sebagai refrigeran utama yang dikompresi di kompresor.
To act as the primary refrigerant compressed in the compressor.
d
Sebagai zat pengering pada filter drier.
To serve as the drying agent in the filter drier.
Grade
Ungraded
Last Update
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Question
2825
Keuntungan sistem brine pada kapal antara lain…
One advantage of a brine system on board is that…
Options
a
Muatan refrigeran utama dapat dipusatkan di ruang mesin dan distribusi dingin lebih aman.
The main refrigerant charge can be concentrated in the engine room and cold distribution is safer.
b
Tekanan kondensasi selalu nol selama operasi.
Condensing pressure is always zero during operation.
c
Katup ekspansi tidak lagi diperlukan.
The expansion valve is no longer required.
d
Ruang provisi tidak memerlukan sirkulasi udara.
Provision rooms do not require air circulation.
Grade
Ungraded
Last Update
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Question
2826
Ruang penyimpanan daging beku memerlukan suhu yang umumnya…
A frozen meat storage room generally requires a temperature that is…
Options
a
Lebih rendah daripada ruang pendingin sayur atau buah.
Lower than that of a vegetable or fruit cold room.
b
Sama dengan suhu kamar mesin.
The same as engine room temperature.
c
Lebih tinggi daripada suhu ruang akomodasi.
Higher than accommodation space temperature.
d
Sama dengan suhu air laut sekitar kapal.
The same as the surrounding seawater temperature.
Grade
Ungraded
Last Update
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Question
2827
Penyimpanan buah dan sayur di ruang dingin harus memperhatikan…
Storage of fruit and vegetables in a cold room must take into account…
Options
a
Suhu dan sirkulasi udara yang sesuai agar mutu tidak cepat menurun.
Suitable temperature and air circulation so that quality does not deteriorate quickly.
b
Tekanan kondensasi setinggi mungkin agar buah cepat matang.
The highest possible condensing pressure so that fruit ripens quickly.
c
Penutupan ventilasi total agar gas hasil respirasi tertahan.
Complete closure of ventilation so that respiration gases are trapped.
d
Pencampuran dengan bahan kimia pembersih agar tahan lama.
Mixing with cleaning chemicals so that they last longer.
Grade
Ungraded
Last Update
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Question
2828
Pada reefer cargo, pencatatan suhu muatan secara berkala penting untuk…
On reefer cargo, regular recording of cargo temperature is important to…
Options
a
Membuktikan kondisi pengangkutan dan memantau kinerja sistem selama pelayaran.
Provide evidence of carriage condition and monitor system performance during the voyage.
b
Menentukan trim kapal pada saat bongkar muat.
Determine ship trim during loading and discharge.
c
Menghitung kebutuhan cat untuk palka.
Calculate paint requirements for the cargo hold.
d
Mengetahui arah arus laut di sekitar kapal.
Know the direction of sea current around the ship.
Grade
Ungraded
Last Update
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Question
2829
Jika kipas evaporator berhenti bekerja, kondisi ruang dingin biasanya akan…
If the evaporator fan stops working, the condition in the cold room will usually…
Options
a
Mendingin tidak merata dan suhu ruang sulit dipertahankan.
Become unevenly cooled and the room temperature will be difficult to maintain.
b
Langsung mencapai suhu set point lebih cepat.
Immediately reach the set point faster.
c
Menyebabkan tekanan kondensasi turun ke nol.
Cause condensing pressure to fall to zero.
d
Membuat filter drier bekerja sebagai kompresor cadangan.
Make the filter drier work as a standby compressor.
Grade
Ungraded
Last Update
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Question
2830
Salah satu penyebab ruang pendingin tidak mencapai suhu set point walaupun kompresor berjalan adalah…
One cause of a cold room not reaching set point temperature even though the compressor is running is…
Options
a
Beban panas masuk terlalu besar atau kapasitas pendinginan menurun.
Excessive heat load entering the room or reduced cooling capacity.
b
Receiver cair terlalu penuh oleh oli.
The liquid receiver being too full of oil.
c
Kompas giro tidak sinkron dengan kompas magnet.
The gyrocompass being out of synchronisation with the magnetic compass.
d
Draft kapal terlalu kecil di haluan.
The ship’s draft at the bow being too small.
Grade
Ungraded
Last Update
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