1. BOTH INTERNATIONAL & INLAND Which signal may be used by a vessel that is in doubt as to whether sufficient action is being taken by another vessel to avoid collision?

A continuous sounding of the fog horn
Firing a gun every minute
Five or more short rapid blasts on the whistle
One prolonged blast on the whistle

2. BOTH INTERNATIONAL & INLAND A power-driven vessel making way through the water sounds which fog signal?

Two short blasts every one minute
One short blast every one minute
Two prolonged blasts every two minutes
One prolonged blast every two minutes

3. BOTH INTERNATIONAL & INLAND Which vessel, when anchored at night, would NOT be required to show anchor lights?

A power-driven vessel
A vessel on pilotage duty
A vessel dredging
A vessel restricted in her ability to maneuver

4. BOTH INTERNATIONAL & INLAND When should the fog signal of a manned vessel under tow be sounded?

After the towing vessel's fog signal
Before the towing vessel's fog signal
Approximately one minute after the towing vessel's fog signal
If the towing vessel is sounding a fog signal, the manned vessel being towed is not required to sound any fog signal.

5. BOTH INTERNATIONAL & INLAND Which vessel sounds the same fog signal when underway or at anchor?

A sailing vessel
A vessel restricted in her ability to maneuver
A vessel constrained by her draft
A vessel not under command

6. INLAND ONLY You are approaching a sharp bend in a river. You have sounded a prolonged blast and it has been answered by a vessel on the other side of the bend. Which statement is TRUE?

Both vessels must exchange passing signals when in sight and passing within one-half mile of each other.
No further whistle signals are necessary.
The vessel downriver must stop her engines and navigate with caution.
Both vessels must immediately sound passing signals whether or not they are in sight of each other.

7. INLAND ONLY A vessel displaying a flashing blue light is __________.

transferring dangerous cargo
a law enforcement vessel
a work boat
engaged in a race

8. BOTH INTERNATIONAL & INLAND To determine if risk of collision exists, a vessel which is fitted with radar must use __________.

radar scanning
radar plotting
compass bearings
All of the above

9. INLAND ONLY You are approaching a sharp bend in a river. You have sounded a prolonged blast and it has been answered by a vessel on the other side of the bend. Which statement is TRUE?

Both vessels must exchange passing signals when in sight and passing within one-half mile of each other.
No further whistle signals are necessary.
The vessel downriver must stop her engines and navigate with caution.
Both vessels must immediately sound passing signals whether or not they are in sight of each other.

10. BOTH INTERNATIONAL & INLAND If underway in low visibility and sounding fog signals, what changes would you make in the fog signal IMMEDIATELY upon losing the power plant and propulsion?

Begin sounding one prolonged blast followed by two short blasts at two-minute intervals.
Begin sounding one prolonged blast followed by three short blasts at two-minute intervals.
Begin sounding two prolonged blasts at two-minute intervals.
No change should be made in the fog signal.