Coast Guard Test Maritime Weather and Oceanography

Question 1

What does the Beaufort scale measure?

Accepted Answer

Wind speed at sea

Answer

Water temperature

Answer

Ocean wave height

Answer

Barometric pressure

Question 2

What type of fog is most commonly encountered in coastal waters when warm, moist air moves over a colder sea surface?

Accepted Answer

Advection fog

Answer

Radiation fog

Answer

Upslope fog

Answer

Frontal fog

Question 3

A rapidly falling barometer aboard a vessel most likely indicates:

Accepted Answer

Approaching storm or severe weather

Answer

Clear and calm weather ahead

Answer

Stable sea conditions

Answer

Improving visibility

Question 4

In the Northern Hemisphere, winds around a low-pressure system rotate in which direction?

Accepted Answer

Counterclockwise

Answer

Clockwise

Answer

Outward from the center

Answer

Toward the east

Question 5

Significant wave height is defined as the average height of the:

Accepted Answer

Tallest third of waves

Answer

Tallest 10% of waves

Answer

All waves observed

Answer

Smallest 50% of waves

Question 6

What does the acronym NAVTEX stand for?

Accepted Answer

Navigational Telex

Answer

Naval Text Exchange

Answer

National Weather Transmission

Answer

Navigational Alert System

Question 7

A vessel's barometer reads 29.53 inches Hg and is steady. This indicates:

Accepted Answer

Fair, stable weather conditions

Answer

An approaching cold front

Answer

An imminent storm

Answer

Tropical cyclone development