You are making a telephone call ship-to-shore using the VHF-FM service. You can tell that the working channel is busy if you hear __________.
A
speech
B
signalling tones
C
a busy signal
D
All of the above
E
İlgili Sorular
BOTH INTERNATIONAL & INLAND A 95-meter vessel aground sounds which fog signal?If an observer is at 35°N latitude, his zenith is __________.You are Master of a U.S. flag vessel which was drydocked for bottom cleaning in Rotterdam, Netherlan...The person-in-charge of a mobile offshore drilling unit must be designated by the _______.You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-pro...