Question
11
Keuntungan utama pengaturan kecepatan motor listrik adalah...
What is the main advantage of electric motor speed control?
Options
a
Sangat fleksibel
Very flexible speed control
b
Sulit dikendalikan
Difficult to control
c
Tidak dapat diubah
The speed cannot be changed
d
Harus menggunakan gearbox
A gearbox must always be used
Grade
Ungraded
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Question
12
Salah satu kapal yang banyak menggunakan Electric Propulsion adalah...
Which type of vessel commonly uses Electric Propulsion?
Options
a
Kapal pesiar
Cruise ship
b
Kapal layar
Sailing vessel
c
Kapal tradisional
Traditional vessel
d
Perahu nelayan kecil
Small fishing boat
Grade
Ungraded
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Question
13
Sistem Electric Propulsion menghasilkan tingkat kebisingan yang...
An Electric Propulsion system generally produces a noise level that is...
Options
a
Lebih rendah
Lower
b
Sangat tinggi
Very high
c
Sama dengan turbin gas
The same as a gas turbine
d
Tidak dapat diukur
Impossible to measure
Grade
Ungraded
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Question
14
Tujuan penggunaan Variable Frequency Drive (VFD) adalah...
What is the purpose of using a Variable Frequency Drive (VFD)?
Options
a
Mengatur putaran motor listrik
To control the rotational speed of the electric motor
b
Menambah kapasitas tangki
To increase tank capacity
c
Mengurangi diameter propeller
To reduce propeller diameter
d
Mengatur tekanan bahan bakar
To control fuel pressure
Grade
Ungraded
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Question
15
Marine Diesel Generator biasanya menggerakkan...
A Marine Diesel Generator normally drives an...
Options
a
Alternator
Alternator
b
Kompresor
Compressor
c
Boiler
Boiler
d
Pompa pendingin
Cooling pump
Grade
Ungraded
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Question
16
Salah satu manfaat Electric Main Propulsion adalah...
Which of the following is a benefit of Electric Main Propulsion?
Options
a
Tata letak ruang mesin lebih fleksibel
More flexible engine-room arrangement
b
Membutuhkan ruang lebih besar
Requires more space
c
Tidak memerlukan panel listrik
Does not require an electrical panel
d
Tidak memakai pendingin
Does not use a cooling system
Grade
Ungraded
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Question
17
Motor propulsi menghasilkan energi...
A propulsion motor converts energy from...
Options
a
Listrik menjadi mekanik
Electrical energy into mechanical energy
b
Kimia menjadi panas
Chemical energy into heat
c
Panas menjadi listrik
Heat into electrical energy
d
Hidrolik menjadi listrik
Hydraulic energy into electrical energy
Grade
Ungraded
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Question
18
Efisiensi sistem Electric Propulsion meningkat karena...
The efficiency of an Electric Propulsion system improves because...
Options
a
Pengaturan daya lebih presisi
Power can be controlled more precisely
b
Generator selalu bekerja maksimum
The generator always operates at maximum load
c
Motor bekerja tanpa pendingin
The motor operates without cooling
d
Tidak memakai kontrol
No control system is used
Grade
Ungraded
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Question
19
Kerugian sistem Electric Propulsion adalah...
A disadvantage of an Electric Propulsion system is that it...
Options
a
Membutuhkan sistem elektronik yang kompleks
Requires a complex electronic control system
b
Tidak membutuhkan operator
Does not require an operator
c
Tidak memerlukan proteksi
Does not require protection
d
Tidak menggunakan kabel
Does not use cables
Grade
Ungraded
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Question
20
Fungsi sistem kontrol pada Electric Propulsion adalah...
What is the function of the control system in Electric Propulsion?
Options
a
Mengatur operasi generator dan motor
To control the operation of the generator and motor
b
Mengatur ballast
To control the ballast system
c
Mengatur pompa bilga
To control the bilge pump
d
Mengatur purifier
To control the purifier
Grade
Ungraded
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