Aux 1 Unit 14 Q3

1 / 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?

C) Frequency regulator

A) Manual bypass switch

B) Automatic Transfer Switch (ATS)

D) Voltage transformer

2 / 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

C) To reduce the speed of the emergency generator

D) To decrease the power output of the main generators

A) To avoid overloading the emergency generator

3 / 10

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

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

D) To decrease the system's efficiency

C) To bypass the protective relays

A) To increase the power output

4 / 10

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

D) Bypass the Automatic Transfer Switch (ATS)

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

A) Immediately disconnect the emergency generator

C) Switch on all electrical loads at once

5 / 10

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

C) It supplies power to the main switchboard

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

A) It provides power for non-essential loads

D) It regulates the voltage of the emergency generator

6 / 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

B) Frequency regulator

A) Circuit breaker interlock

C) Voltage stabilizer

7 / 10

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

D) Battery charger

A) Main engine control panel

B) Emergency switchboard busbars

C) Fuel control valve

8 / 10

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

D) Navigation lights

C) HVAC control unit

A) Generator circuit breaker

B) Emergency generator

9 / 10

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

B) Automatic Transfer Switch (ATS)

A) Protective relays

C) Battery bank

D) Voltage regulator

10 / 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

D) Disconnect the Automatic Transfer Switch (ATS)

A) Immediately shut down all equipment

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

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