Question
3071
Heater dalam sistem bahan bakar berfungsi sebagai…
A sight glass on the liquid line is installed to…
Options
a
Meningkatkan suhu bahan bakar dan mengurangi viskositasnya
Make it easier to observe the condition of liquid refrigerant flow in the system.
b
Pendingin bahan bakar agar tidak terlalu panas saat digunakan
Measure compressor lubricating oil pressure.
c
Penyaring bahan bakar sebelum masuk ke mesin
Determine the direction of rotation of the drive motor.
d
Alat untuk meningkatkan tekanan bahan bakar
Automatically regulate refrigerated space temperature.
Grade
Ungraded
Last Update
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Question
3072
Viscosity regulator berfungsi untuk…
If bubbles are continuously visible in the sight glass while the system is stable, a possible indication is…
Options
a
Mengukur dan mengatur viskositas bahan bakar sebelum dialirkan ke mesin
The refrigerant charge is low or flash gas is occurring in the liquid line.
b
Memisahkan bahan bakar dari kotoran sebelum digunakan
The evaporator is completely covered with frost.
c
Mengurangi kadar air dalam bahan bakar
The compressor has excess lubricating oil.
d
Menyaring udara dalam bahan bakar agar lebih murni
The condenser safety valve is opening.
Grade
Ungraded
Last Update
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Question
3073
Apa peran fuel oil supply pump dalam mendukung kerja injection pump?
One function of a solenoid valve in a refrigeration system is to…
Options
a
Mensuplai bahan bakar ke injection pump dengan tekanan yang sesuai
Open or close refrigerant flow electrically.
b
Mengurangi tekanan bahan bakar sebelum diinjeksikan
Raise refrigerant pressure before the condenser.
c
Mencampur bahan bakar dengan udara sebelum dipanaskan
Absorb moisture from the liquid refrigerant.
d
Meningkatkan kadar sulfur dalam bahan bakar
Control the oil level in the compressor crankcase.
Grade
Ungraded
Last Update
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Question
3074
Bahan bakar yang diinjeksikan dengan tekanan tinggi melalui nozzle akan…
In a pump-down system, the solenoid valve is usually installed on the…
Options
a
Membentuk kabut dengan partikel halus yang mudah terbakar
Liquid line leading to the evaporator.
b
Mengendap di dasar tangki sebelum digunakan
Discharge line leaving the compressor.
c
Mengalir langsung ke mesin tanpa proses pemanasan
Seawater inlet line to the condenser.
d
Menyaring sendiri sebelum masuk ke ruang bakar
Oil return line from the separator.
Grade
Ungraded
Last Update
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Question
3075
Fungsi utama dari sistem bahan bakar di kapal adalah…
An advantage of using solenoid valves for several cold rooms is that…
Options
a
Memberikan bahan bakar yang berkwalitas,temperatur yg diinginkan, dengan jumlah yang dibutuhkan.
Each evaporator can be controlled according to the needs of its individual space.
b
Mengurangi konsumsi bahan bakar tanpa memperhatikan performa mesin
All spaces must operate at the same temperature.
c
Menyimpan bahan bakar dalam waktu lama tanpa pengolahan tambahan
Condensing pressure will always decrease regardless of load.
d
Menggunakan bahan bakar apa pun tanpa memperhatikan spesifikasi mesin
The compressor will no longer require pressure safety devices.
Grade
Ungraded
Last Update
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Question
3076
Pompa yang digunakan untuk mentransfer bahan bakar dari storage tank ke settling tank disebut…
A thermostatic expansion valve functions to…
Options
a
Transfer pump
Regulate refrigerant flow to the evaporator according to the cooling load.
b
Booster pump
Raise the pressure of liquid refrigerant from the receiver.
c
Flowmeter
Condense refrigerant with the help of seawater.
d
Separator
Store liquid refrigerant while the compressor is stopped.
Grade
Ungraded
Last Update
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Question
3077
Settling tank memiliki pemanas berbentuk pipa coil yang berfungsi untuk…
The sensing bulb of a thermostatic expansion valve is installed on the…
Options
a
Menaikkan suhu dan menurunkan viskositas bahan bakar
Evaporator outlet pipe to sense suction vapour temperature.
b
Mendinginkan bahan bakar sebelum digunakan
Condenser inlet pipe to sense liquid temperature.
c
Menyaring bahan bakar dari kotoran dan air
Bottom of the liquid receiver to sense tank temperature.
d
Mengurangi kadar sulfur dalam bahan bakar
Seawater outlet line from the cooling pump.
Grade
Ungraded
Last Update
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Question
3078
Fungsi utama dari centrifuge dalam sistem suplai bahan bakar adalah…
The purpose of superheat adjustment on a thermostatic expansion valve is to…
Options
a
Memurnikan bahan bakar dari kotoran dan air
Prevent liquid refrigerant from returning to the compressor.
b
Menyimpan bahan bakar dalam jumlah besar
Increase the amount of liquid refrigerant in the receiver.
c
Meningkatkan tekanan bahan bakar sebelum ke mesin
Reduce condenser seawater temperature.
d
Mencampur bahan bakar dengan udara sebelum diinjeksikan
Accelerate frost formation on the evaporator.
Grade
Ungraded
Last Update
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Question
3079
Sebelum masuk ke centrifuge, bahan bakar dipanaskan dengan tujuan…
If the expansion valve opens too wide, the main risk that can occur is…
Options
a
Menurunkan viskositas agar sesuai dengan kebutuhan centrifuge
Liquid carry-over to the compressor.
b
Mendinginkan bahan bakar sebelum diproses
Condensing pressure dropping too low.
c
Mengendapkan partikel kotoran dalam bahan bakar
The liquid receiver becoming a vacuum.
d
Mengubah bahan bakar menjadi bentuk gas sebelum digunakan
Seawater entering the refrigerant pipes.
Grade
Ungraded
Last Update
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Question
3080
Setelah bahan bakar diendapkan di settling tank dan melewati separator, selanjutnya diteruskan ke…
The function of a thermostat in a cold room is to…
Options
a
Service tank
Control compressor or solenoid valve operation so that room temperature matches the set point.
b
Storage tank
Regulate seawater pressure at the condenser.
c
Mixing tank
Measure refrigerant level in the receiver.
d
Separator
Return lubricating oil to the compressor crankcase.
Grade
Ungraded
Last Update
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