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 of the following describes the behavior of temperature indication when a short circuit occurs between the two wires of a thermocouple?

A The temperature value will reach the maximum (+999°C) possible for the specific measurement system.

B The temperature value will reach the minimum (-999°C) possible for the specific measurement system.

C A fixed deviation towards the lower side.

D A fixed deviation towards the higher side.

E Temperature "drifting" with an obvious deviation towards the higher side.

Питання 2

What will happen if an analog signal at the PLC input exceeds the permissible range?

A The ADC may fail, or the signal will be clipped to the maximum limit.

B The PLC will increase the output signal.

C The program will switch to emergency mode.

D The system will reboot.

Питання 3

Which of the following actions should be taken when overheating of generator windings is detected?

A Reduce the load and check the cooling system.

B Increase the load on the generator.

C Decrease the generator's rotation frequency.

D Replace the cooling fluid.

Питання 4

How can multiple consumers of navigation data in the NMEA-0183 standard be connected to a single source?

A Via an amplifier-splitter (i.e., NMEA buffer).

B All in parallel.

C Through a 120-ohm resistor.

D All in series.

Питання 5

The insulation resistance of a new electric stove is 25 MΩ. What will the insulation resistance be when four identical stoves are connected to the power source simultaneously?

A 6.25 MΩ.

B 100 MΩ.

C 100 kΩ.

D 280 kΩ.

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