题目内容

The region of high pressure extending around the Earth at about 35°N latitude is called the_____

A. prevailing westerlies
B. horse latitudes
C. troposphere
D. doldrums

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You are using VHF channel 16 (156.8 MHz) or 2182 KHz. You need help but are not in danger. You should use the urgent signal ______.

ASSISTANCE NEEDED
B. PAN-PAN
C. MAYDAY
D. SECURITE

When the transmissions of a radio station or a Decca chain, etc., have broken down, switch

A. Unfunctional
Break down
C. Off power
D. Off air

You are making ship-to-shore telephone calls on VHF. You should use the ______.

A. VHF-FM service
B. coastal harbor service
C. high seas service
D. emergency broadcast service

when you are steering on a pair of range lights and find the upper light is in line above

A. continue on the present course
B. come right
C. wait until the lights are no longer in a vertical line
D. come left

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