DWATCH FINALS REVIEWER
DWATCH Finals Reviewer
Challenge your maritime knowledge with the DWATCH Finals Reviewer! This quiz consists of 33 thought-provoking multiple-choice questions designed to test your understanding of various navigational rules and regulations.
Prepare for your exams by engaging in:
- Nautical terminology
- Collisions and maneuvers
- Visibility and nautical lights
- Specific rules for different vessels
A watercraft exhibiting a sail with a conical shape apex down is what type of vessel?
Power driven vessel
Not a vessel
Sailing vessel
Ram vessel
As stated in Rule 3, this happens when the vision is impaired by haze.
Obstructed visibility
Restricted visibility
Impaired visibility
Good visibility
A raft made of logs with sail, is fitted with outboard motor and used the outboard motor to maneuver is an example of what type of vessel?
Sailing vessel
Power driven vessel
Not a vessel
Ram vessel
You observed a dead ahead at 6 n. miles, its speed is 13kts, what is the expected navigational lights, that should be visible as per Rule 22 - Visibility of lights.
All navigational lights
Sidelights
Masthead lights and side lights
Masthead lights
Rule 6 states that in determining safe speed, one factor is the maneuverability of the vessel with special reference to what?
Speed reduction
Stopping distance
Turning diameter
Crash stop
When you use RADAR/ARPA, how are you going to have more exact assessment of the visibility thru targets?
Bearing of targets
Range of targets
Speed of targets
Aspect of targets
When plotting the targets vector, the target’s speed is 25 kts, how far will she travel in 12 minutes?
4.6 Nmi
2.6 Nmi
3.6 Nmi
5.6 Nmi
As an OOW, when there is enough sea room, this action may be the most effective to avoid close-quarter situation.
Course alteration
Speed alteration
Course and speed alteration
RADAR watch
According to Rule 8, which is NOT correct when taking action to avoid collision?
In ample time
Good navigation
Positive
Good seamanship
While navigating in a narrow channel nearing a bend, as an OOW, this should be done.
Sound one short blast
Sound one prolonged blast
Sound two prolonged blast
Sound two short blast
According to Rule 9, which is to be avoided when navigating in narrow channel?
Anchoring
Fishing
Sailing
Overtaking
Which of the following is NOT directed by ColRegs to keep out of the way of vessels that can safely navigate in narrow channel?
Sailing vessel
Fishing vessel
Kayak
20 meters vessel
As an OOW, you are navigating in a narrow channel and observed a fishing vessel that intends to cross with risk of collision. What should be your action?
Alter course to starboard
Sound the danger signal
Stop your engine
Call master
How are you going to join a traffic lane from either side?
At a large angle to the direction of the flow
At a small angle to the direction of the flow
You cannot join a traffic lane
At right angle to the direction of the flow
Two sailing vessels are approaching each other with risk if collision, both have the wind on the same side, which vessel shall keep out of the other?
Vessel on the leeward side
Both vessels will keep clear
None of the vessels will keep clear
Vessel on the windward side
Two sailing vessels are approaching each other with risk if collision, both have the wind on the different side, which vessel shall keep out of the other?
Vessel with the wind on her starboard side
Vessel with the wind on her port side
Both vessels will keep clear
None of the vessels will keep clear
During your watch, you observed a target fast approaching coming from 23 degrees abaft your beam. Which of the following is true?
Crossing situation
Overtaking situation
Both crossing and overtaking situation
Neither crossing nor overtaking situation
At night, you observed a target ahead of you, gradually decreasing in range and checked it has the same heading as you, what navigational lights can be seen from the target?
Sidelights only
Masthead lights and both sidelights
Sternlight and both side lights
Sternlight only
At night you observed a target showing two white lights nearly in a line, as per COLREGS what should be your action assuming there are plenty of sea room?
Alter course to port
Alter course to starboard
Maintain course and speed
Maintain course and reduce speed
At night you observed a target showing consistently two white lights and a red light, as per COLREGS what should be your action assuming there are plenty of sea room?
Alter course to port
Alter course to starboard
Maintain course and speed
Maintain course and reduce speed
Rule 15 is applicable only when?
All weather
Restricted visibility
In sight of one another
Night time only
As a give way vessel directed by the rule, what will be your standard when taking action?
Alter course to starboard
Sound the correct signals
Actions resulting to close quarter situation
Keep well clear
You are stand-on vessel in a crossing situation which action must be avoided?
Altering course to port
Altering course to starboard
Maintain course and speed
Sound the danger signal
Which of the following is covered by RULE 18 of COLREGS?
Vessel inside TSS
Vessel inside narrow channel
Vessel inside a port area
Vessel inside restricted visibility
A sailing vessel and a fishing vessel are navigating inside a restricted visibility area, which vessel must keep out of the way?
Both must keep clear
Sailing vessel must keep clear
Fishing vessel must keep clear
The vessel on the starboard side must keep clear
You are OOW onboard a WIG craft, what additional light are you going to display during night or restricted visibility?
All round flashing yellow light
All round flashing red light
All round yellow light
All round red light
Which navigating along a coast, you happen to see a night light display of another vessel as three all-round green light, which of the choices is correct?
Aircraft carrier
Submarine
Mine clearing vessel
WIG craft
A pushing vessel and vessel being pushed are rigidly connected and is making way through the water. Which of the following is their correct sound signal?
Two prolonged blast
One prolonged blast
One prolonged followed by two short blasts
One short blast followed by two prolonged blasts
Which of the following is the correct exemption for the repositioning of lights resulted from conversion from imperial to metric units?
Three years
Four years
permanent
Nine years
Which of the following is the correct measurement of height above the hull?
Vertically beneath the mast
Vertically beneath the upper most continuous deck
Vertically beneath the gunwale
Vertically beneath the location of the light
Which of the following is the minimum height of forward masthead light?
Five meters
Six meters
Seven meters
Eight meters
Which of the following is the maximum spacing of two masthead lights if fitted?
50 meters
70 meters
100 meters
120 meters
Onboard vessel, you are going to hoist two black balls in a vertical line, how far apart will you separate these shapes?
1 meter
1.5 meters
2 meters
2.5 meters
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