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
The signal man assisting the crane operator first taps the top of his head with his fist and then pr...What is used to prevent wear on towlines that bear on hard surfaces?When recording the wind direction in the weather log, you would report the __________.The original equilibrium position is always unstable when _______.You are drifting in calm water, there is no current. As a rule, your vessel will lie __________.