Question

BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two short blasts on the whistle. You should take which action?

A) Sound two short blasts and change course to the left
B) Sound only fog signals until the other vessel is sighted
C) Not sound any whistle signals until the other vessel is sighted
D) Sound whistle signals only if you change course

Answer 1

In fog when another vessel sounds two short blasts, indicating it is altering course to port, the correct response is to prepare to take action to avoid collision and sound the appropriate fog signal; changing course should be considered carefully to avoid further risk.

Step-by-step explanation:

When underway in fog and you hear a vessel ahead sound two short blasts on the whistle, it signifies that the other vessel is altering course to port (to the left). The proper action to take depends greatly on the situation and the rules of navigation, but generally, you should prepare to take action to avoid a collision and sound the appropriate fog signal as required by the maritime rules of the road. However, you should not change course based solely on sound signals in fog as this may lead to confusion and increase the risk of collision. It is important to maintain a safe speed and be prepared to take evasive action if necessary, once the other vessel is sighted and their intentions are clear.