更多"If an observer in the Northern Hemi"的相关试题:
[单项选择]In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.
A. Southwest，clockwise to northwest
B. Northeast，clockwise to west-southwest
C. Northeast，counterclockwise to northwest
D. East，counterclockwise to south-southwest
[单项选择]In the Northern hemisphere northerly winds may cause temperature（）.
A. falling
B. rising
C. constant
D. same
[单项选择]In the Northern Hemisphere the major ocean currents tend to flow（）.
A. clockwise around the North Atlantic and North Pacific Oceans
B. clockwise or counterclockwise depending on whether it is warm or cold current
C. counterclockwise except in the Gulf Stream
D. counterclockwise around the North Atlantic and North Pacific Oceans
[单项选择]Generally speaking，in the Northern Hemisphere，when winds are blowing from between SE and SW the barometric reading（）.
A. makes no change at all
B. is somewhat lower than it would be for winds from a northern quadrant
C. is uncertain and may fluctuate by increasing and decreasing
D. is somewhat higher than it would be for winds from the northern quadrant
[单项选择]In the Northern Hemisphere，winds veering sharply to the west or northwest with increasing speed are indications that a（）.
A. cold front has passed
B. low pressure center is approaching
C. stationary front exists
D. high pressure center has passed
[单项选择]In the Northern Hemisphere，gusty winds shifting clockwise，a rapid drop in temperature，thunderstorms or rain squalls in summer (frequent rain/snow squalls in winter) then a rise in pressure followed by clearing skies，indicate the passage of a(n)（） .
A. warm front
B. tropical cyclone
C. anticyclone
D. cold front
[单项选择]In the Northern Hemisphere，an area of counterclockwise wind circulation surrounded by higher pressure is a（）.
A. low
B. high
C. warm front
D. cold front
[单项选择]In the Northern Hemisphere，your vessel is believed to be in the direct path of a hurricane，and plenty of sea room is available. The best course of action is to bring the wind on the（）.
A. starboard bow，note the course，and head in that direction
B. starboard quarter，note the course，and head in that direction
C. port quarter，note the course，and head in that direction
D. port bow，note the course，and head in that direction
[单项选择]In the northern hemisphere, the largest waves or swells created by a typhoon or hurricane will be located（）.
A. in the southeast quadrant of the storm
B. directly behind the storm center
C. forward and to the right of its course
D. behind and to the left of its course
[单项选择]In the Northern Hemisphere a wind is said to veer when the wind（）.
A. Changes direction clockwise，as from north to east，etc
B. Changes direction violently and erratically
C. Remains constant in direction and speed
D. Changes direction counterclockwise，as from south to east，etc
[单项选择]In the Northern Hemisphere，what type of cloud formations would you expect to see to the west of an approaching tropical wave?（）.
A. Cumulus clouds lined up in rows extending in a northeast to southwest direction
B. High altostratus clouds in the morning hours
C. Cirrostratus clouds lined up in rows extending in a northeast to southwest direction
D. Cirrostratus clouds lined up in rows extending in a north to south direction
[单项选择]In the Northern Hemisphere，the largest waves or swells created by a typhoon or hurricane will be located（）.
A. in the southeast quadrant of the storm
B. directly behind the storm center
C. forward and to the right of its course
D. behind and to the left of its course
[单项选择]In the Northern Hemisphere，a wind that shifts counterclockwise is a（）.
A. veering wind
B. backing wind
C. reverse wind
D. chinook wind
[单项选择]In the Northern Hemisphere you are caught in the dangerous semicircle with plenty of sea room available. The best course of action is to bring the wind on the（）.
A. starboard bow and make as much headway as possible
B. starboard quarter，and make as much headway as possible
C. port quarter，and make as much headway as possible
D. port bow，and make as much headway as possible
[单项选择]In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
A. NNW
B. WSW
C. ESE
D. SSW
[单项选择]In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
A. the wind speed is greater here since the wind is traveling in the same general direction as the storm's track
B. the direction of the wind and seas might carry a vessel into the path of the storm
C. the seas are higher because of greater wind speed
D. All of the above
[单项选择]In the Northern Hemisphere，if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on the（）.
A. Starboard quarter，hold course and make as much speed as possible
B. Port bow，hold course and make as much speed as possible until the hurricane has passed
C. Port quarter，maintain course and make as much speed as possible
D. Starboard bow and heave to until the hurricane has passed
[单项选择]In a tropical cyclone，in the Northern Hemisphere，a vessel hove to with the wind shifting counterclockwise is（）.
A. ahead of the storm center
B. in the dangerous semicircle
C. in the navigable semicircle
D. directly in the approach path of the storm
