De acordo com o prescrito pelo COLREG e pelas Normas da Autoridade Marítima para Embarcações Empregadas na Navegação Interior (NORMAM-02/DPC), associe a coluna A com a coluna B e aponte a resposta correta:

COLUNA A

1) warning signal

2) manoeuvring signal

3) signal to attract attention
4) sound signal in restricted visibility

5) distress signal

COLUNA B

( ) one prolonged blast in normal visibility

( ) two short blasts

( ) the beam of searchlight

( ) three blasts in succession, namely one prolonged followed by two short blasts

( ) a continuous sounding with any fog-signalling apparatus

( ) four prolonged blasts