單項選擇題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


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題What is the MOST irritating to the skin?()

A.Carbon disulfide
B.Ethyl alcohol
C.Isoprene
D.Oleum

3.單項選擇題The radiotelegraph alarm signal is().

A.SOS sent three times
B.ten one-second dashes with a four-second interval between them
C.twelve four-second dashes with a one-second interval between them
D.twelve one-second dashes with a short interval between them

4.單項選擇題To predict the actual depth of water using the Tide Tables,the number obtained from the Tide Tables is().

A.the actual depth
B.added to or subtracted from the charted depth
C.multiplied by the charted depth
D.divided by the charted depth

5.單項選擇題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

6.單項選擇題What is the()of the turning circle in mavoeuvring?

A.distance
B.largeness
C.diameter
D.measurerment

8.單項選擇題When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio().

A.a distinctive signal
B.the Morse Code signal for SOS
C.a computerized voice announcement of Mayday
D.your vessel's International Radio Call Sign

9.單項選擇題The best method to stop a vessel from dragging anchor in a sand bottom is to().

A.reduce the length of the cable
B.pay out more anchor cable
C.back the engines
D.swing the rudder several times to work the anchor into the bottom