Aux 1 Unit 14 Q3

1 / 10

Why is it important to gradually transfer the load from the emergency generator back to the main generators when restoring power?

B) To ensure that the main generators can handle the load without tripping or causing voltage fluctuations

A) To avoid overloading the emergency generator

D) To decrease the power output of the main generators

C) To reduce the speed of the emergency generator

2 / 10

Why is it important to monitor the voltage and frequency of the main generators when restoring power to the emergency switchboard?

C) To bypass the protective relays

B) To ensure that the restored power supply is stable and within acceptable limits, preventing potential damage to sensitive equipment

A) To increase the power output

D) To decrease the system's efficiency

3 / 10

What is the first step in restoring main electrical power to the emergency switchboard after a blackout?

B) Ensure the main generators are started and synchronized with the busbars

D) Bypass the Automatic Transfer Switch (ATS)

C) Switch on all electrical loads at once

A) Immediately disconnect the emergency generator

4 / 10

Which of the following is a main component of an emergency switchboard?

C) HVAC control unit

D) Navigation lights

B) Emergency generator

A) Generator circuit breaker

5 / 10

Which component on the emergency switchboard is responsible for controlling and distributing power to essential services?

A) Main engine control panel

C) Fuel control valve

B) Emergency switchboard busbars

D) Battery charger

6 / 10

What device on the emergency switchboard automatically transfers the load from the main switchboard to the emergency generator in the event of a power failure?

B) Automatic Transfer Switch (ATS)

A) Manual bypass switch

D) Voltage transformer

C) Frequency regulator

7 / 10

In a line diagram of an emergency switchboard, which component ensures that the emergency generator does not operate in parallel with the main generators?

D) Power factor meter

A) Circuit breaker interlock

C) Voltage stabilizer

B) Frequency regulator

8 / 10

What role does the emergency battery bank play in the emergency switchboard arrangement?

B) It offers backup power to essential services if the emergency generator fails or during the time before the generator starts

C) It supplies power to the main switchboard

D) It regulates the voltage of the emergency generator

A) It provides power for non-essential loads

9 / 10

What precaution must be taken before disconnecting the emergency generator after main power has been restored?

C) Increase the load on the emergency generator

A) Immediately shut down all equipment

D) Disconnect the Automatic Transfer Switch (ATS)

B) Ensure that all essential services have been successfully transferred to the main power supply

10 / 10

Which component on the emergency switchboard provides critical protection by disconnecting faulty circuits to prevent damage to the system?

A) Protective relays

D) Voltage regulator

B) Automatic Transfer Switch (ATS)

C) Battery bank

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