Quiz Hotel Service Unit 2 Safety Q5

1 / 5

What is the purpose of overcurrent protection devices on a vessel's main switchboard?

A) To maintain proper voltage regulation

D) To balance the electrical load between different systems

B) To prevent excessive current from damaging electrical components

C) To prevent corrosion on electrical contacts

2 / 5

What is the role of under-voltage protection on a vessel’s main switchboard?

C) To regulate fuel supply to the generator

A) To prevent electrical overloading

D) To manage power distribution between multiple generators

B) To disconnect electrical circuits when the voltage drops below a certain level to protect equipment

3 / 5

Why is an earth fault indicator installed on the main switchboard of a vessel?

A) To monitor voltage fluctuations

B) To detect and alert operators to an insulation failure or earth fault in the electrical system

C) To ensure proper grounding of equipment

D) To control the temperature of electrical cables

4 / 5

Why is a reverse power relay fitted to the main switchboard of a vessel?

A) To ensure stable power output from the generators

B) To protect the generator by disconnecting it from the system if reverse power flow is detected

D) To synchronize multiple generators

C) To regulate fuel consumption

5 / 5

What is the primary function of a circuit breaker on the main switchboard of a vessel?

C) To control the temperature of the switchboard

A) To regulate voltage levels

D) To monitor power consumption

B) To prevent overloading by automatically disconnecting the electrical circuit in case of a fault

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