Marine Battery and Charging System Quiz

What is the purpose of batteries on board vessels?

• To provide power for the main engine

• To be used in case of blackout and emergency situations

• To power the air conditioning system

• To charge the navigational instruments

What is the unit of measurement for the capacity of a battery?

• Watt-hours

• Volt-hours

• Ohm-hours

• Ampere-hours

How is AC power converted to DC for charging the batteries?

• Through a capacitor

• By using a voltage regulator

• Through a transformer

• By using a rectifier system

What is the purpose of the trickle charge circuit for batteries?

• To measure the specific gravity of the electrolyte

• To discharge the battery completely

• To maintain the charges on the battery after it is fully charged

• To provide high current for quick charging

What safety measure is commonly installed in the battery charging room on modern ships?

• Interlock with the exhaust fan

• Interlock with the emergency lighting system

• Interlock with the GMDSS system

• Interlock with the main engine