USCG METEOROLOGY EXAM QUESTIONS AND ANSWERS LATEST VERSION 2025 ALREADY PASSED
When a warm air mass overtakes a cold air mass, the contact surface is called a ____________. -
Answers warm front
A barometer showing falling pressure indicates the approach of a ____________. - Answers low
pressure system
A millibar is a unit of ____________. - Answers pressure
Barometers are calibrated at a standard temperature of ____________. - Answers 32°F
Which instrument is used to predict the approach of a low pressure system? - Answers Barometer
An instrument designed to maintain a continuous record of atmospheric pressure is a(n) _________
___. - Answers barograph
Which indication on the barometer is most meaningful in forecasting weather? - Answers The direction
and rate of change of barometric pressure
The most important information to be obtained from a barometer is the ____________. - Answers
present reading of the pressure, combined with the changes in pressure observed in the recent past
You are located within a stationary high pressure area. Your aneroid barometer is falling very slowly
. This indicates a(n) ____________. - Answers decrease in the pressure of the system
The barometer is an instrument for measuring the ____________. - Answers atmospheric pressure
Atmospheric pressure at sea level is equal to ____________. - Answers 14.7 pounds per square inch,
29.92 inches of mercury, 1013.25 millibars
The needle of an aneroid barometer points to 30.05 on the dial. This indicates that the barometric
pressure is ____________. - Answers 30.05 inches of mercury
A microbarograph is a precision instrument that provides a ____________. - Answers charted record of
atmospheric pressure over time
Aneroid barometers are usually calibrated to indicate atmospheric pressure in ____________. - Answers
inches of mercury and millibars
If your mercurial barometer reads 30.50 inches (1033 millibars) and the temperature is 56°F (13°C)
, what is the correct reading at 55°N, 150°W? - Answers 30.45 inches (1031 millibars)
Barometer readings in weather reports are given in terms of pressure at ____________. - Answers sea
level
, Your present weather is sunny with a steady barometer. A low swell approaches your vessel from th
e south with crests passing at relatively long periods of about four per minute. This usually indicates
____________. - Answers a tropical cyclone south of your vessel
Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane
several hundred miles from your location? - Answers A long swell from an unusual direction
If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your po
sition, what winds can you expect in the Northern Hemisphere? - Answers North to northwest
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm? -
Answers A backing wind
When your vessel is on or near the path of an approaching tropical storm the ____________. - Answers
wind direction remains steady, wind speed increases, barometer falls
The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm
____________. - Answers to the right of the storm's track
The wind velocity is higher in the dangerous semicircle of a tropical cyclone because of the
____________. - Answers wind circulation and forward motion of the storm
Which condition would NOT indicate the approach of a tropical storm? - Answers Decrease in wind
velocity
Which kind of conditions would you observe as the eye of a storm passes over your vessel's position? -
Answers Huge waves approaching from all directions, clearing skies, light winds, and an extremely low
barometer
he highest frequency of tropical cyclones in the North Atlantic Ocean occurs during ____________. -
Answers August, September and October
While in port, you can follow the approach of a dangerous cyclonic storm by inspecting ____________. -
Answers a weather map
Tropical storms and hurricanes are most likely to form in the Southern hemisphere during
____________. - Answers January through March
Anticyclones are usually characterized by ____________. - Answers dry, fair weather
A storm's track is characterized by all of the following except ____________. - Answers the speed at
which the storm is moving
A cyclone in its final stage of development is called a(n) ____________. - Answers occluded cyclone or
occluded front
When a warm air mass overtakes a cold air mass, the contact surface is called a ____________. -
Answers warm front
A barometer showing falling pressure indicates the approach of a ____________. - Answers low
pressure system
A millibar is a unit of ____________. - Answers pressure
Barometers are calibrated at a standard temperature of ____________. - Answers 32°F
Which instrument is used to predict the approach of a low pressure system? - Answers Barometer
An instrument designed to maintain a continuous record of atmospheric pressure is a(n) _________
___. - Answers barograph
Which indication on the barometer is most meaningful in forecasting weather? - Answers The direction
and rate of change of barometric pressure
The most important information to be obtained from a barometer is the ____________. - Answers
present reading of the pressure, combined with the changes in pressure observed in the recent past
You are located within a stationary high pressure area. Your aneroid barometer is falling very slowly
. This indicates a(n) ____________. - Answers decrease in the pressure of the system
The barometer is an instrument for measuring the ____________. - Answers atmospheric pressure
Atmospheric pressure at sea level is equal to ____________. - Answers 14.7 pounds per square inch,
29.92 inches of mercury, 1013.25 millibars
The needle of an aneroid barometer points to 30.05 on the dial. This indicates that the barometric
pressure is ____________. - Answers 30.05 inches of mercury
A microbarograph is a precision instrument that provides a ____________. - Answers charted record of
atmospheric pressure over time
Aneroid barometers are usually calibrated to indicate atmospheric pressure in ____________. - Answers
inches of mercury and millibars
If your mercurial barometer reads 30.50 inches (1033 millibars) and the temperature is 56°F (13°C)
, what is the correct reading at 55°N, 150°W? - Answers 30.45 inches (1031 millibars)
Barometer readings in weather reports are given in terms of pressure at ____________. - Answers sea
level
, Your present weather is sunny with a steady barometer. A low swell approaches your vessel from th
e south with crests passing at relatively long periods of about four per minute. This usually indicates
____________. - Answers a tropical cyclone south of your vessel
Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane
several hundred miles from your location? - Answers A long swell from an unusual direction
If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your po
sition, what winds can you expect in the Northern Hemisphere? - Answers North to northwest
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm? -
Answers A backing wind
When your vessel is on or near the path of an approaching tropical storm the ____________. - Answers
wind direction remains steady, wind speed increases, barometer falls
The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm
____________. - Answers to the right of the storm's track
The wind velocity is higher in the dangerous semicircle of a tropical cyclone because of the
____________. - Answers wind circulation and forward motion of the storm
Which condition would NOT indicate the approach of a tropical storm? - Answers Decrease in wind
velocity
Which kind of conditions would you observe as the eye of a storm passes over your vessel's position? -
Answers Huge waves approaching from all directions, clearing skies, light winds, and an extremely low
barometer
he highest frequency of tropical cyclones in the North Atlantic Ocean occurs during ____________. -
Answers August, September and October
While in port, you can follow the approach of a dangerous cyclonic storm by inspecting ____________. -
Answers a weather map
Tropical storms and hurricanes are most likely to form in the Southern hemisphere during
____________. - Answers January through March
Anticyclones are usually characterized by ____________. - Answers dry, fair weather
A storm's track is characterized by all of the following except ____________. - Answers the speed at
which the storm is moving
A cyclone in its final stage of development is called a(n) ____________. - Answers occluded cyclone or
occluded front
