Question
121
Bagaimana prinsip kerja hydraulic cylinder pada kapal?
How does a hydraulic cylinder work on board a ship?
Options
a
Menghasilkan gerakan linier melalui tekanan fluida hidrolik
It produces linear motion through hydraulic fluid pressure
b
Mengubah energi hidrolik menjadi energi panas
It converts hydraulic energy into heat energy
c
Menstabilkan tekanan udara dalam tangki
It stabilizes air pressure in the tank
d
Menghasilkan putaran tetap tanpa perubahan torsi
It produces fixed rotation without torque change
Grade
Ungraded
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Question
122
Apa yang dimaksud dengan hydraulic fluid dalam konteks kapal?
What is meant by hydraulic fluid in the context of ships?
Options
a
Cairan kerja yang dipakai sebagai media penghantar tenaga
A working liquid used as the medium for transmitting power
b
Gas kerja yang dipakai untuk meredam getaran
A working gas used to reduce vibration
c
Udara kering untuk sistem kendali
Dry air for control systems
d
Minyak pelumas utama untuk poros baling-baling
Main lubricating oil for the propeller shaft
Grade
Ungraded
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Question
123
Apa fungsi utama hydraulic reservoir?
What is the main function of a hydraulic reservoir?
Options
a
Menyimpan cadangan fluida hidrolik dan membantu pelepasan panas
To store hydraulic fluid and assist heat dissipation
b
Menyimpan udara tekan cadangan untuk katup
To store reserve compressed air for valves
c
Menaikkan tekanan langsung ke aktuator
To raise pressure directly to the actuator
d
Membuang kotoran padat dari sistem tanpa filter
To remove solid dirt from the system without a filter
Grade
Ungraded
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Question
124
Apa yang seharusnya dilakukan jika terjadi kebocoran pada sistem hidrolik kapal?
What should be done if there is a leak in a ship’s hydraulic system?
Options
a
Memeriksa dan memperbaiki kebocoran secepat mungkin
Inspect and repair the leak as soon as possible
b
Menambah tekanan sistem agar aliran tetap stabil
Increase system pressure so flow remains stable
c
Membiarkan kebocoran kecil selama pompa masih bekerja
Allow a small leak as long as the pump is still running
d
Mengganti semua fluida tanpa inspeksi titik bocor
Replace all fluid without inspecting the leak point
Grade
Ungraded
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Question
125
Apa yang dimaksud dengan hydraulic pressure?
What is meant by hydraulic pressure?
Options
a
Tekanan fluida hidrolik di dalam sistem
The pressure of hydraulic fluid within the system
b
Tekanan udara di dalam tangki cadangan
The air pressure inside the reserve tank
c
Tekanan atmosfer di sekitar kapal
The atmospheric pressure around the ship
d
Tekanan gas di dalam saluran ventilasi
The gas pressure inside the hydraulic circuit
Grade
Ungraded
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Question
126
Apa peran hydraulic valve dalam sistem hidrolik kapal?
What is the role of a hydraulic valve in a ship’s hydraulic system?
Options
a
Mengontrol arah, aliran, dan tekanan fluida dalam sirkuit
To control the direction, flow, and pressure of fluid in the circuit
b
Menjaga kelembaban ruangan kerja
To maintain humidity in the working space
c
Mengubah fluida menjadi gas bertekanan
To convert fluid into pressurized gas
d
Menyaring udara yang masuk ke pipa
To filter air entering the pipe
Grade
Ungraded
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Question
127
Apa yang dimaksud dengan hydraulic actuator?
What is meant by a hydraulic actuator?
Options
a
Komponen yang menghasilkan gerakan dari tenaga fluida hidrolik
A component that produces motion from hydraulic fluid power
b
Perangkat yang hanya mengukur suhu fluida
A device that only measures fluid temperature
c
Tangki penampung minyak hidrolik
A tank for storing hydraulic oil
d
Alat yang menstabilkan tegangan listrik
A tool that stabilizes electrical voltage
Grade
Ungraded
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Question
128
Apa yang harus dilakukan saat memeriksa level fluida pada hydraulic reservoir?
What should be done when checking the fluid level in a hydraulic reservoir?
Options
a
Memeriksa level dan menambah fluida bila diperlukan sesuai prosedur
Check the level and top up fluid if required according to procedure
b
Menaikkan tekanan sistem sebelum membuka tutup tangki
Increase system pressure before opening the tank cap
c
Menguras seluruh fluida setiap kali pemeriksaan
Drain all fluid every time an inspection is carried out
d
Menyalakan semua aktuator agar pembacaan cepat berubah
Operate all actuators so the reading changes quickly
Grade
Ungraded
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Question
129
Apa yang dimaksud dengan hydraulic motor?
What is meant by a hydraulic motor?
Options
a
Motor yang menghasilkan gerak putar dari tenaga fluida hidrolik
A motor that produces rotary motion from hydraulic fluid power
b
Motor listrik yang mengisi tangki hidrolik
An electric motor that fills the hydraulic tank
c
Motor yang memampatkan udara ke dalam sistem
A motor that compresses air into the system
d
Motor panas yang memakai bahan bakar langsung
A heat engine using direct fuel combustion
Grade
Ungraded
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Question
130
Apa fungsi utama check valve dalam sistem hidrolik kapal?
What is the main function of a check valve in a ship’s hydraulic system?
Options
a
Mencegah aliran balik fluida hidrolik
To prevent reverse flow of hydraulic fluid
b
Membatasi suhu fluida saat operasi
To limit fluid temperature during operation
c
Mengatur kelembaban di ruang mesin geladak
To regulate humidity in the deck machinery room
d
Menaikkan tekanan setiap kali pompa berhenti
To raise pressure whenever the pump stops
Grade
Ungraded
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