The duration of a prolonged blast of the whistle is().
- A2 to 4 seconds
- B4 to 6 seconds
- C6 to 8 seconds
- D8 to 10 second
The duration of a prolonged blast of the whistle is().
1、A fog signal consisting of one prolong
A fog signal consisting of one prolonged blast followed by four short blasts would indicate thepresence of a().Avessel being towedBfishing vess...
2、A whistle signal of one prolonged,one
A whistle signal of one prolonged,one short,one prolonged and one short blast,is sounded by a vessel().Aat anchorBtowing a submerged objectCbeing overtaken in a narrow channelDin distre
3、Aboard a vessel, dividing the sum of t
Aboard a vessel, dividing the sum of the vertical moments by the total weight yields the vessel’s().Aheight of the center of gravity A.LCGBvertical momentCrighting momentDinclining moment
4、A continual worsening of the list or t
A continual worsening of the list or trim indicates().Anegative GMBpropressive floodingCstructural failureDan immediate need to ballast
5、If you hear a continuous blast of the
If you hear a continuous blast of the ship’s whistle for a period of a period of not less than 10 saconds supplemented by a continuous rin...
6、The unit of duration of a dash in Mors
The unit of duration of a dash in Morse Code is().Aone and one-half times the length of a dotBtwice the length of a dotCthree times the length of a dotDfour times the length of a dot