Electro-Technical Competence

Basic Questions of Electrical Equipment

This test covers the basics of operating and maintaining electrical equipment, including setting thermal relays, measuring voltages, servicing batteries, distinguishing between analog and digital signals, methods of starting electric motors, selective protection, automations and much more.

Питань 18

Час 9 min

Мова Англійська

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Питання 1

Which method is used to calibrate analog temperature sensors on a ship?

A Immersion in a reference medium with a known temperature and adjustment of the output signal.

B Comparison of readings with a digital thermometer.

C Measurement of resistance at room temperature.

D Software calibration automation.

Питання 2

What is a "Control Circuit"?

A A circuit in which switching of the network and power consumer takes place.

B A circuit in which switching of control elements of the power circuit occurs.

C A power supply circuit from the generator to the main distribution board.

Питання 3

What are the methods for starting an electric motor?

A Direct start.

B Star-Delta start.

C Autotransformer start.

D Frequency start.

E Reverse-phase start.

F Delta-Star start.

Питання 4

By what means is the voltage output of a generator regulated?

A Adjusting the current in the generator's excitation winding.

B Adjusting the speed of the drive motor.

C Adjusting the load on the busbars.

Питання 5

In the absence of a spare thermocouple, can it be replaced with a Pt100 sensor without making additional changes to the system?

A Yes, it can.

B No, it cannot.

C Only after agreement with the shipowner.

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