默认题库 - 紧急用语

单选题

What does the term TO NAVIGATE WITH CAUTION mean?（）.

A. To navigate intentionally
B. To navigate intensely
C. To navigate carefully
D. To navigate completely

单选题

What is the normal length of anchor cable used to anchor a vessel?（）

An amount equal to the depth of the water
B. Two times the depth of water
C. Three to four times the depth of water
D. Five to seven times the depth of water

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单选题

What is the primary purpose of a splint applied in first aid?（）

A. Control bleeding
B. Reduce pain
C. Immobilize a fracture
D. Reset the bone

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单选题

Your vessel has been damaged and is taking on water，but you do not require immediate assistance. You would preface a message advising other vessels of your situation with（）.

A. Mayday-Mayday-Mayday
B. Pan-Pan (3 times)
C. Securite-Securite-Securite
D. SOS-SOS-SOS

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单选题

The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.

A. 1.5 and greater
B. 1.25 and greater
C. 1.0 and greater
D. 0.5 and greater

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单选题

A Coast Guard radiotelephone message about an aid to navigation that is off station is preceded by the word（）.

A. PAN-PAN
B. MAYDAY
C. SOS
D. SECURITY

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单选题

Which of the following indicates a grave and imminent danger requesting immediate assistance on radio telephone?（）.

A. SOS
B. Mayday
C. Securite
D. PAN

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单选题

If you wished to transmit a message by voice concerning the safety of navigation，you would preface it by the word（）.

A. Mayday
B. Pan-pan
C. Securite
D. Safety

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单选题

After a vessel transmits the original distress message，what signal should be sent to allow ships to take RDF bearings?（）

A. SOS three times
B. Additional transmissions to aid direction finding
C. E for one minute，followed by T for one minute
D. Two tones，10-15 seconds each

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单选题

A radiotelegraph message commencing with XXX has the same meaning as a message sent by the radiotelephone commencing with（）.

A. TTT
B. SOS
C. The spoken word URGENCY
D. The spoken word PAN

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