单项选择题

Cargo vessels being navigated，and fitted with emergency lighting and power systems，shall have their emergency systems tested at least once（）.

A.a month
B.in each week
C.in every 6 months
D.in every 12 months

相关考题

An aircraft has indicated that he wants you to change c...

单项选择题An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（）

A.Fire a red flare at night or a red smoke signal by day
B.Send the Morse signal "N" by flashing light
C.Make a round turn (360°) and resume course
D.Make an "S" turn (hard right then hard left) and resume course

All self-propelled vessels on an international voyage m...

单项选择题All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radio beacons (EPIRB)? （）

A.One approved Category 1 EPIRB
B.Three approved Category 1 EPIRBs
C.One approved Class B EPIRB
D.Two approved Class B EPIRBs

After having activated the emergency position indicatin...

单项选择题After having activated the emergency position indicating radio beacon，you should（）.

A.turn it off for 5 minutes every half-hour
B.turn it off and on at 5 minute intervals
C.turn it off during daylight hours
D.leave it on continuously

紧急通信

Cargo vessels being navigated，and fitted with emergency lighting and power systems，shall have their emergency systems tested at least once（）.