Boat Handling Flashcards

1
Q

The forward motion of a ship in one revolution of it propeller is measured by?

A

pitch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

As a propeller turns, voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency, pitting the blades and vibration. These voids are known as?

A

cavitation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Leeway is?

A

The lateral movement of a vessel downwind of her intended course

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The effect of wind on exposed areas of the vessel is most noticeable when?

A

Backing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The pivot point of a vessel going ahead is?

A

About one-third of the vessel’s length from the bow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When underway and proceeding ahead, as speed increases, the pivot point tends to?

A

move forward

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When backing down with sternway the pivot point of a vessel is?

A

About one quarter of the vessel’s length from the stern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Your vessel is dead in the water with the rudder amidships. As the right-handed screw (single screw) starts to turn ahead that bow will tend to?

A

Go to port

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Your vessel is single screw with a right handed prop, there is no current the easiest way to make a landing is to?

A

Port side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When operating a twin-screw vessel you lose your port engine, you continue to operate on your starboard motor only. You would compensate with what to move your vessel in a straight line?

A

Right rudder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The distance gained in the direction of the original course when you are making a turn is know as?

A

Advance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The distance that a vessel travels from the time that the order to put the engines full astern until the vessel is dead in the water is known as?

A

head reach

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

An increase in speed results in the stern doing what on a vessel underway in shallow water?

A

Sucking down lower than the bow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A common occurrence when a vessel is running into shallow water is that “squat” will cause?

A

a decrease in bottom clearance and an increase in draft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Squatting is a shallow water effect that will increase dramatically if?

A

You increase your ships speed past its critical speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

You notice that your speed has decreased, the stern of your vessel has settled into the water and your rudder is sluggish in responding, the most likely cause is?

A

Shallow water

17
Q

A wedge of water building up between the bow and nearer bank which forces the bow out and away describes?

A

Bank cushion

18
Q

A vessel proceeding along the bank of a river or channel has the tendency to?

A

Sheer away from the bank

19
Q

The effect known as bank suction?

A

Pulls the stern towards the bank

20
Q

Two vessels are abreast of each other and passing port to port in a confined waterway. When your bow approaches the screws of the other vessel you should expect?

A

Your bow to sheer towards the other vessel

21
Q

You intend to overtake a vessel in a narrow channel. As you approach the other vessel’s stern the vessels will?

A

Drift together

22
Q

The term lee side refers to?

A

The side of the boat sheltered from the wind

23
Q

You are docking a vessel, wind and current are more favorable when?

A

They are parallel to the pier from ahead

24
Q

You are docking a vessel when possible you should?

A

go in against the current

25
Q

With a following sea a vessel will tend to?

A

yaw

26
Q

What will reduce the yawing of a vessel in a following sea?

A

Shifting weight to stern

27
Q

The situation that a vessel could most easily capsize is?

A

Running in the trough

28
Q

Broaching to means?

A

a vessel being turned broadside to the sea unexpectedly

29
Q

Your vessel is broken down in heavy seas you can reduce the possibility of capsizing by?

A

rigging a sea anchor

30
Q

What is the maneuver which will return your vessel to a person who has fallen overboard in the shortest time?

A

Single turn with a hard rudder

31
Q

What is a major advantage of the round turn maneuver in a MOB situation?

A

It is the fastest method

32
Q

The single turn method of returning to a MOB should only be used if your vessel is?

A

Very maneuverable

33
Q

In the Williamson Turn the rudder is put over full until?

A

The vessel has turned 60degrees from her original course

34
Q

You suspect a crew member has fallen overboard during the night and immediately execute a Williamson Turn, the primary advantage of this maneuver under these circumstances is that?

A

You will be on a reciprocal course and nearly on the track line run during the night