题目内容

When using a hand held smoke signal from a lifeboat, you should activate the signal _____.

A. on the downwind side
B. on the upwind side
C. inside the boat
D. at the stern

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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

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