Meteorology USCG Questions || with A+ Guaranteed Solutions.
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Course
Meteorology USCG
Institution
Meteorology USCG
When a warm air mass overtakes a cold air mass, the contact surface is called a ____________. correct answers warm front
A barometer showing falling pressure indicates the approach of a ____________. correct answers low pressure system
A millibar is a unit of ____________. correct answers pre...
Meteorology USCG Questions || with A+ Guaranteed
Solutions.
When a warm air mass overtakes a cold air mass, the contact surface is called a ____________.
correct answers warm front
A barometer showing falling pressure indicates the approach of a ____________. correct
answers low pressure system
A millibar is a unit of ____________. correct answers pressure
Barometers are calibrated at a standard temperature of ____________. correct answers 32°F
Which instrument is used to predict the approach of a low pressure system? correct answers
Barometer
An instrument designed to maintain a continuous record of atmospheric pressure is a(n)
_________
___. correct answers barograph
Which indication on the barometer is most meaningful in forecasting weather? correct answers
The direction and rate of change of barometric pressure
The most important information to be obtained from a barometer is the ____________. correct
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) ____________. correct answers decrease in the pressure of the system
The barometer is an instrument for measuring the ____________. correct answers atmospheric
pressure
Atmospheric pressure at sea level is equal to ____________. correct 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 ____________. correct answers 30.05 inches of mercury
A microbarograph is a precision instrument that provides a ____________. correct answers
charted record of atmospheric pressure over time
Aneroid barometers are usually calibrated to indicate atmospheric pressure in ____________.
correct 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? correct answers 30.45 inches (1031 millibars)
Barometer readings in weather reports are given in terms of pressure at ____________. correct
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 ____________. correct 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? correct 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? correct answers North to
northwest
Which condition suggests that your present position lies in the navigable semicircle of a tropical
storm? correct answers A backing wind
When your vessel is on or near the path of an approaching tropical storm the ____________.
correct 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
____________. correct 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
____________. correct answers wind circulation and forward motion of the storm
Which condition would NOT indicate the approach of a tropical storm? correct answers
Decrease in wind velocity
Which kind of conditions would you observe as the eye of a storm passes over your vessel's
position? correct 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
____________. correct answers August, September and October
While in port, you can follow the approach of a dangerous cyclonic storm by inspecting
____________. correct answers a weather map
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