Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG General Navigation (Set 42)

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Question 1 of 30

A generally circular low pressure area is called a(n) __________.

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30 MCQs

#1 A generally circular low pressure area is called a(n) __________. #2 When observing a rapid rise in barometric pressure, you may expect __________. #3 What is a common unit of measure for atmospheric pressure? #4 In the Northern Hemisphere, when the center of a high pressure system is due east of your position, you can expect winds from the __________. #5 The wind direction around a low pressure area in the Northern Hemisphere is __________. #6 A millibar is a unit of __________. #7 In the Northern Hemisphere, an area of counterclockwise wind circulation surrounded by higher pressure is a __________. #8 The pressure gradient between the horse latitudes and doldrums runs __________. #9 A barometer showing falling pressure indicates the approach of a __________. #10 Stormy weather is usually associated with regions of __________. #11 Pressure gradient is a measure of __________. #12 The diurnal pressure variation is most noticeable in the __________. #13 Little or no change in the barometric reading over a twelve hour period indicates __________. #14 The daily recurring pattern of pressure changes most noticeable in low latitudes is the __________. #15 In low latitudes the range of the diurnal variation of pressure is up to __________. #16 In low latitudes, the high(s) of the diurnal variation of pressure occur(s) at __________. #17 In low latitudes, the low(s) of the diurnal variation of pressure occur(s) at __________. #18 The diurnal variation of pressure is most noticeable __________. #19 The diurnal variation of pressure is not visible in the middle latitudes in winter because __________. #20 Generally speaking, in the Northern Hemisphere, when winds are blowing from between SE and SW the barometric reading __________. #21 A slow, gradual fall of the barometer indicates approaching __________. #22 When your barometer reading changes from 30.25 to 30.05 in a 12-hour period it indicates __________. #23 A rapid rise or fall of the barometer indicates __________. #24 Two well-developed high pressure areas may be separated by a __________. #25 Generally speaking, you should expect to find low atmospheric pressure prevailing in the earth's __________. #26 Which general weather conditions should you expect to find in a low pressure system? #27 Two well-developed low pressure areas may be separated by a __________. #28 A cyclone in its final stage of development is called a(n) __________. #29 The wind circulation around a high pressure center in the Northern Hemisphere is __________. #30 Good weather is usually associated with a region of __________.

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