Question
51
Automatic Voltage Regulator (AVR) berfungsi...
Steady-state error is...
Options
a
Menjaga tegangan generator tetap konstan
The error remaining after the system has stabilized
b
Menambah putaran mesin
The error during start-up
c
Mengurangi tekanan oli
An electrical error
d
Mengukur suhu
A mechanical error
Grade
Ungraded
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Question
52
Monitoring alarm bertujuan...
A disturbance in a control system is...
Options
a
Memberikan peringatan dini terhadap kondisi abnormal
An external or internal influence that affects the process
b
Menambah beban mesin
A sensor
c
Mengurangi putaran mesin
An actuator
d
Memutus sensor
A controller
Grade
Ungraded
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Question
53
Sistem kontrol yang baik akan menghasilkan...
The purpose of PID tuning is to...
Options
a
Operasi mesin yang stabil, aman, dan efisien
Obtain the best system response
b
Konsumsi bahan bakar meningkat
Reduce the number of sensors
c
Gangguan semakin besar
Reduce cabling
d
Kerusakan lebih cepat
Reduce pressure
Grade
Ungraded
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Question
54
Dalam sistem pendingin mesin induk, thermostat berfungsi sebagai...
Digital control systems on ships are widely used in the...
Options
a
Controller temperatur
Integrated Automation System (IAS)
b
Plant
Anchor
c
Disturbance
Anchor chain
d
Fuse
Fender
Grade
Ungraded
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Question
55
Tujuan utama monitoring Electrical, Electronic and Control System pada kapal niaga adalah...
The overall objective of control systems in merchant ship machinery is to...
Options
a
Menjamin seluruh sistem bekerja aman, andal, efisien, serta menjaga kontinuitas operasi permesinan kapal
Keep machinery operation safe, stable, efficient, and at the required setpoint
b
Menambah jumlah alarm
Increase fuel consumption
c
Mengurangi jumlah sensor
Reduce the number of operators without control functions
d
Menghilangkan controller
Eliminate all sensors
Grade
Ungraded
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Question
56
Dalam sistem kontrol, sinyal feedback digunakan untuk...
In a closed-loop system, a sensor is required to...
Options
a
Memberikan informasi kondisi aktual plant kepada controller
Measure the actual process condition as a feedback signal
b
Menghasilkan daya listrik utama
Generate mechanical power
c
Menggantikan fungsi actuator
Replace all controller functions
d
Menentukan warna panel
Increase tank capacity
Grade
Ungraded
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Question
57
Pada closed-loop control, error diperoleh dari...
A setpoint in a control system is...
Options
a
Selisih antara set point dan nilai aktual
The target value to be achieved by the process variable
b
Jumlah sensor dan actuator
A disturbance entering the process
c
Perbedaan arus AC dan DC
The battery voltage
d
Nilai maksimum alarm
The actuator output signal
Grade
Ungraded
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Question
58
Jika error sama dengan nol, berarti...
If the output is lower than the setpoint, a closed-loop system will...
Options
a
Nilai aktual telah sama dengan set point
Generate an error signal that the controller uses for corrective action
b
Sensor pasti rusak
Ignore the output condition
c
Actuator harus berhenti permanen
Automatically switch off the sensor
d
Plant tidak memiliki beban
Remove all signals
Grade
Ungraded
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Question
59
Manipulated Variable adalah...
In a control system, the plant is...
Options
a
Variabel yang diubah controller untuk memengaruhi plant
The process or equipment being controlled
b
Nilai target proses
A voltage measuring instrument
c
Gangguan dari lingkungan
A computer program
d
Data alarm yang tersimpan
A battery power source
Grade
Ungraded
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Question
60
Contoh manipulated variable pada sistem kontrol temperatur adalah...
A manipulated variable is...
Options
a
Bukaan control valve pendingin
A variable adjusted by the controller to influence the process
b
Temperatur aktual mesin
An external disturbance value
c
Set point temperatur
A fixed setpoint value
d
Alarm temperatur tinggi
Historical operator data
Grade
Ungraded
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