PCOC Weather and Environmental Factors 2

Question 1

A rapidly falling barometer over a short period typically indicates:

Accepted Answer

Severe weather approaching quickly

Answer

Improving weather conditions

Answer

Stable, calm conditions ahead

Answer

A temporary temperature drop only

Question 2

When operating in fog, which sound signal should a power-driven vessel underway make at least every 2 minutes?

Accepted Answer

One prolonged blast

Answer

Two short blasts

Answer

Three short blasts

Answer

One short and one prolonged blast

Question 3

Which cloud type is most associated with thunderstorms and violent weather?

Accepted Answer

Cumulonimbus

Answer

Cirrus

Answer

Stratus

Answer

Altocumulus

Question 4

A wind shift from south to northwest in the Northern Hemisphere typically signals:

Accepted Answer

The passage of a cold front

Answer

An approaching warm front

Answer

A high-pressure system moving away

Answer

Decreasing wind speeds

Question 5

What is the primary danger of operating a vessel during an electrical storm?

Accepted Answer

Lightning strikes to the vessel or occupants

Answer

Reduced visibility only

Answer

Increased wave height exclusively

Answer

Engine fuel contamination from rain

Question 6

Sea fog most commonly forms when:

Accepted Answer

Warm, moist air moves over cold water

Answer

Cold, dry air moves over warm water

Answer

Strong winds cool surface water rapidly

Answer

High pressure systems compress air near the surface

Question 7

When should you check the weather forecast before a boating trip?

Accepted Answer

Before every trip, regardless of length

Answer

Only if the trip is longer than 4 hours

Answer

Only in spring and fall months

Answer

Only when heading offshore beyond 3 miles