Who's that power source?
You shall not pass! (The brow)
You're good... you're good... you're good...
Say hello to my little friend!
Nobody expects the Spanish Inquisition!
200

Old Ironsides

What is wind?

200

This machine compresses refrigerant vapor as part of a ship’s refrigeration or air-conditioning cycle.

What is a compressor?

200

This compass error results from magnetic influences aboard the ship itself.

What is deviation?

200

Named for the shield of Zeus, this naval combat system integrates sensors, computers, and weapons to detect and engage threats.

What is Aegis?

200

To all who see these presents:

What is GREETINGS!

400

USS Wasp

What are boilers?

400

This device removes particles and contaminants from fuel, oil, or water.

What is a filter?

400

These two terms describe the direction toward which a current flows and its speed.

What is set and drift?

400

This type of kill is scenario based and fictitious, but is used as valuable training for the crew.

What is a constructive kill?

400

A sailor crossing the equator for the first time traditionally goes from being a "pollywog" to one of these.

What is a shellback?

600

USS Jimmy Carter

What is S6W nuclear reactor?

600

This "expansion tank" is the ultimate heat sink for any naval vessel.

What is the ocean?

600

This route follows the shortest path between two points on the surface of a sphere.

What is great circle route?

600

This term describes a missile’s ability to guide itself after launch without further guidance from the launching platform.

What is fire and forget?

600

These three motions make a ship rotate: roll, pitch, and this side-to-side change in heading.

What is yaw?

800

USS Zumwalt

What is a gas turbine engine?

800

This automatic electrical device opens a circuit when excessive current flows through it and can usually be reset.

What is a circuit breaker?

800

This angle describes an object’s direction measured clockwise from the ship’s bow.

What is relative bearing?

800

This antiship missile shares its name with a traditional whaling weapon.

What is a harpoon?

800

This forward part of a ship’s upper deck commonly contains anchor-handling equipment. Spell it.

What is forecastle?

1000

USS Triton

What is Twin-S4G Nuclear Reactors?

1000

This phenomenon occurs when an electrical current takes an unintended path through air between conductive parts, potentially releasing intense heat and light.

What is an arc flash? (Or arc blast)

1000

This chart projection shows rhumb lines as straight lines but increasingly distorts scale toward the poles.

What is the Mercator Projection?

1000

This missile flight phase occurs near the target, following the midcourse phase.

What is terminal phase?

1000

Commissioned in 1968, this is the only active-duty U.S. Navy ship currently held captive by a foreign government, though it remains a commissioned vessel in the U.S. fleet database.

What is the USS Pueblo?