Which one of two crossing power-driven vessels has the right of way in a fog().
A、Both vessels
B、Neither vessel
C、The vessel on portside
D、The vessel on starboard side
A、Both vessels
B、Neither vessel
C、The vessel on portside
D、The vessel on starboard side
A、two rockets,one of which shall be the buoyant type B、three rockets,one of which shall be the buoyant type C、four rockets,two of which shall be the buoyant type D、five rockets,two of which shall be the buoyant type
A、two certificates have expired B、two certificates will expire C、one of the two certificates have expired D、one of the two certificates will expire
A、 One, two, three or four processors B、 One, two, or three processors C、 One, three, or four processors D、 One, two or four processors
A、A two disk set with one data strip B、A three disk set with two data strips and a parity strip C、A two disk set with two data strips D、A four disk set with two sets of data strips
A、a light signal of at least five short and rapid flashes B、one prolonged,one short,one prolonged,and one short whistle blasts C、four short whistle blasts D、two short whistle blasts
A、A rapid ringing of a bell for 5 seconds every two minutes B、A whistle signal of one short,one prolonged,and one short blast C、A prolonged blast of the whistle at intervals not to exceed one minute D、A rapid ringing of a bell for 5 seconds,preceded and followed by three separate and distinct strokes on the bell
A、One blast at one-minute intervals B、One blast at two-minute intervals C、Two blasts at one-minute intervals D、One prolonged and two short blasts at two-minute intervals
A、The one with the wind closest abeam B、The one to windward C、The one to leeward D、The one that sounds the first whistle signal