Marine Inverter Quiz

What is the primary function of a marine inverter?

• Charge batteries from DC power

• Convert AC to DC

• Convert DC battery power into AC

• Boost battery voltage

What kind of power source do most marine inverters draw from?

• Generator

• Shore power

• Battery bank (DC)

• Solar panel

A pure sine wave inverter produces:

• Modified square output

• Harmful voltage spikes

• Smooth AC power similar to utility power

• Only DC current

What is the main disadvantage of modified sine wave inverters?

• Low cost

• High efficiency

• Poor compatibility with sensitive electronics

• Require external cooling

An inverter should be sized based on:

• Generator wattage

• Charger capacity

• Peak load and continuous load requirements

• Battery type only

What will happen if you overload an inverter?

• It increases current output

• It automatically converts to DC

• It may shut down or trigger protection mode

• It continues running at reduced voltage

Why are large cables used between batteries and inverters?

• For waterproofing

• To carry high current with minimal voltage drop

• To improve inverter start time

• To reduce temperature

Which inverter type can also charge your batteries?

• Transfer inverter

• Inverter/charger

• Modified inverter

• Power booster

What is a transfer switch in an inverter system?

When using an inverter, what battery discharge depth is generally recommended?

• 90–100%

• 70–80%

• No more than 50% for long life

• 30% maximum