Question
71
Pada sistem kapal, SCR sering dipakai dalam ....
On board ships, SCRs are often used in...
Options
a
Battery Charger
Battery chargers
b
Tangki bahan bakar
Fuel tanks
c
Sistem pendingin
Cooling systems
d
Separator
Separators
Grade
Ungraded
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Question
72
IGBT merupakan gabungan karakteristik ....
An IGBT combines the characteristics of a...
Options
a
MOSFET dan BJT
MOSFET and a BJT
b
Dioda dan SCR
Diode and SCR
c
Relay dan Saklar
Relay and switch
d
Kapasitor dan Resistor
Capacitor and resistor
Grade
Ungraded
Last Update
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Question
73
Tujuan penggunaan IGBT pada kapal adalah ....
The purpose of using an IGBT on board is for...
Options
a
Switching daya tinggi
High-power electronic switching
b
Menyimpan listrik
Storing electrical energy
c
Mengukur tegangan
Measuring voltage
d
Menyearahkan arus
Rectifying current
Grade
Ungraded
Last Update
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Question
74
IGBT banyak digunakan pada ....
IGBTs are widely used in...
Options
a
Variable Frequency Drive (VFD)
Variable Frequency Drives (VFDs)
b
Tangki ballast
Ballast tanks
c
Kondensor
Condensers
d
Heat exchanger
Heat exchangers
Grade
Ungraded
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Question
75
IGBT dikendalikan melalui terminal ....
An IGBT is controlled through its...
Options
a
Gate
Gate terminal
b
Base
Base terminal
c
Collector
Collector terminal
d
Emitter
Emitter terminal
Grade
Ungraded
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Question
76
Proses kerja IGBT dimulai ketika ....
An IGBT begins conducting when...
Options
a
Gate diberi tegangan
The required Gate voltage is applied
b
Collector diputus
The Collector is disconnected
c
Emitter dilepas
The Emitter is removed
d
Suhu naik
Temperature increases
Grade
Ungraded
Last Update
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Question
77
Manfaat penggunaan IGBT dibanding SCR adalah ....
One advantage of an IGBT compared with an SCR is...
Options
a
Switching lebih cepat
Faster switching
b
Lebih berat
Greater weight
c
Lebih lambat
Slower switching
d
Tidak dapat dikontrol
Lack of controllability
Grade
Ungraded
Last Update
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Question
78
Dalam inverter kapal, IGBT berfungsi sebagai ....
In a shipboard inverter, an IGBT operates as a...
Options
a
Saklar elektronik berkecepatan tinggi
High-speed electronic switch
b
Pendingin
Cooling device
c
Penyimpan energi
Energy-storage device
d
Sensor suhu
Temperature sensor
Grade
Ungraded
Last Update
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Question
79
Penggunaan IGBT pada Variable Frequency Drive bertujuan ....
The purpose of using IGBTs in a Variable Frequency Drive is to...
Options
a
Mengatur kecepatan motor AC
Control the speed of an AC motor
b
Menambah tegangan baterai
Increase battery voltage
c
Menambah frekuensi generator
Increase generator frequency
d
Mengurangi ukuran motor
Reduce motor size
Grade
Ungraded
Last Update
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Question
80
Secara umum urutan proses kerja IGBT adalah ....
The general switching sequence of an IGBT is...
Options
a
Gate diberi tegangan ? IGBT ON ? arus Collector-Emitter mengalir ? Gate dilepas ? IGBT OFF
Gate voltage applied ? IGBT ON ? Collector-Emitter current flows ? Gate drive removed ? IGBT OFF
b
Collector diberi tegangan ? Gate rusak ? OFF
Collector voltage applied ? Gate fails ? OFF
c
Emitter diberi arus ? Gate terbuka ? OFF
Emitter current applied ? Gate opens ? OFF
d
Tegangan hilang ? IGBT ON
Voltage removed ? IGBT ON
Grade
Ungraded
Last Update
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