LNG Operations - Engine

Automation Knowledge

You will meet questions for Senior ETO position for LNG carriers. questions would include VFDs, PMS, Electrical Propulsion, sensors, signals, communication of various equipment and troubleshooting.

Питань 20

Час 9 min

Мова Англійська

Приклади питань

Ось кілька прикладів питань з цього тесту. Завантажте додаток GYRO, щоб пройти повний тест.

Питання 1

How do braking resistors help prevent overvoltage in motor drives?

A By absorbing excess energy and dissipating it as heat, preventing voltage spikes.

B By amplifying the voltage output, ensuring consistent power delivery.

C By reducing the voltage input, regulating the motor speed.

D By storing excess energy for future use, maintaining system stability.

Питання 2

In which mode does the PMS automatically adjust the load between generators without any manual intervention?

A Asymmetric mode

B Droop mode

C Fixed load mode

D Symmetric mode

Питання 3

When troubleshooting a Modbus TCP communication failure between a PLC and field devices, what is the first thing to check?

A Ethernet cabling, IP addresses, and network switch malfunction.

B Reprogram the PLC to update the Modbus communication settings.

C Reset the PLC to its factory settings to resolve communication issues.

D Check the ambient temperature around the PLC to ensure it’s within operational limits.

Питання 4

Thermocouple Temperature reading too low, what could be the cause?

A Sensor shorted

B Moist at thermocouple or at connector

C Wrong polarity connected

D Compensation resistor problem

E All of the mentioned

Питання 5

Advantages of using Rogowski coils over conventional current transformers?

A High accuracy and linearity.

B Galvanic isolation for safety.

C Lightweight, flexible, retrofit-friendly.

D Broader frequency response, measures both AC and DC.

Пройти тест. Завантажте додаток GYRO, щоб пройти цей тест та відстежувати свій прогрес.