CEVNI revision module 4 of 9

SND

Sound Signals

Long and short blasts, manoeuvring intentions, warning signals, and poor visibility discipline.

long blastsshort blasts

4 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain long and short blasts, manoeuvring intentions, warning signals, and poor visibility discipline.
  • Apply long blasts to a realistic onboard situation.
  • Recall the core check: short and long blasts have distinct meanings.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.

More ways to revise

Practise, topic tests, flashcards and interactive trainers are included with full revision access (£9.99 one-time).