RESEARCH ASSIGNMENT

What voltage is considered "high voltage" in marine practice?

• Below 440 V

• 600 V

• Above 1,000 V

• Exactly 1,000 V

What is the main function of the ship's main generators?

• To generate electricity for the ship's systems

• To store backup power

• To charge batteries

• To provide power only when docked

What device provides backup power in case the main generators fail?

• Shore power supply

• Emergency generators

• Inverters

• Circuit breakers

Which component protects the ship's electrical system from overloads?

• Batteries

• Circuit breakers

• Generators

• Transformers

High voltage systems are typically used for:

• Propulsion and heavy machinery

• General lighting

• Low-power electronic devices

• Entertainment systems

An earth circuit fault occurs when:

• A circuit is left open

• A live wire touches a grounded surface

• Current flows uninterrupted

• A circuit breaker trips

Which voltage range is typically considered "low voltage" on ships?

• Above 1,000 V

• Below 1,000 V

• Exactly 1,000 V

• None of the above

One of the primary advantages of high voltage systems on ships is:

• Increased circuit breaker size

• Reduced insulation requirements

• Reduced power loss over long distances

• Larger conductor size

Which grounding system type is commonly used on marine vessels?

• Solid grounding

• Insulated neutral grounding

• Ungrounded

• Direct grounding

What is the purpose of the main switchboard?

• To store backup power

• To control and distribute electricity from the main generators

• To charge the batteries

• To ground the electrical system