Quiz on Rule 9 Narrow Channels

According to rule 9, in a narrow channel or fairway, a vessel should keep near to which side?

• Stern side

• Bow side

• Starboard side

• Port side

Which type of vessel shall not impede the passage of a vessel navigating within a narrow channel or fairway?

• Cargo vessel

• Fishing vessel

• Vessel of over 20 meters in length

• Sailing vessel

What signal can a vessel use if it wants to cross a narrow channel or fairway but is unsure about the intention of the crossing vessel?

• Continuous sound signal

• Prolonged blast followed by one short blast

• Five short and rapid blasts

• One short blast

In a narrow channel or fairway, when can overtaking take place?

• Only during daylight hours

• Only if the vessel to be overtaken has to take action to permit safe passing

• Only if the overtaking vessel is smaller in size

• Only if the vessel to be overtaken is stationary

What should a vessel do when nearing a bend or an area of a narrow channel where other vessels may be obscured?

• Stop and anchor immediately

• Increase speed

• Navigate with particular alertness and caution

• Sound the horn continuously

According to rule 9, what should vessels avoid doing in a narrow channel?

• Anchoring

• Speeding up

• Changing course

• Overtaking

What type of vessel shall not impede the passage of any other vessel navigating within a narrow channel or fairway?

• Cargo vessel

• Tanker vessel

• Fishing vessel

• Passenger vessel

When overtaking in a narrow channel or fairway, what signal should the overtaking vessel sound to indicate its intention?

• One short blast

• Five short and rapid blasts

• Continuous sound signal

• Prolonged blast followed by one short blast

What should a vessel do if it wants to overtake another vessel in a narrow channel but is unsure about the situation?

• Increase speed and overtake quickly

• Sound the horn continuously

• Stop and wait

• Sound the appropriate signal and take steps to permit safe passing

In a narrow channel or fairway, what should a vessel do if it cannot see past an intervening obstruction?

• Sound the horn continuously

• Navigate with particular alertness and caution

• Increase speed

• Change course abruptly