REVIEW MAR ENG

What is the unit of electrical resistance?

Answer explanation

Ohm

What device is used to convert AC to DC?

Answer explanation

Rectifier

What is the main power source on a ship when at sea?

Answer explanation

Generator

What device stores electrical energy?

Answer explanation

Battery

What does the abbreviation “AIS” stand for?

Answer explanation

Automatic Identification System

What is the main purpose of an insulator in electrical systems?

Answer explanation

Protection

What gas is in fire extinguishers for electrical fires?

Answer explanation

CO2

What color is used for grounding wires on a ship?

Answer explanation

Green

What frequency is common on ships?

Answer explanation

60 Hz

What does “GMDSS” stand for?

Answer explanation

Global Maritime Distress and Safety System