Approaches to Anchorages

Question 1

The holding power of an anchor is primarily determined by the ___________.
Select one:

a.
anchor’s ability to dig in

b.
stowage of the anchor on board

c.
shape of the anchor

d.
size of the vessel and its draft

Answer 1

a.

anchor’s ability to dig in

Question 2

While anchoring your vessel, the best time to let go the anchor is when the vessel is…
Select one:

a.
dead in the water

b.
moving fast astern over the ground

c.
making slight sternway due to wind or current

d.
moving fast ahead over the ground

Answer 2

c.

making slight sternway due to wind or current

Question 3

Which part of the anchor actually digs into the bottom and provide holding power?
Select one:

a.
Shank

b.
Stock

c.
Crown

d.
Fluke

Answer 3

d.

Fluke

Question 4

When a small craft’s anchor refuses to break free, the operator should ___________.
Select one:

a.
back down using the force of the engine

b.
run in a wide circle, slowly, to change the angle of pull

c.
increase the scope with the anchor line taut

d.
haul vertically on the line

Answer 4

b.

run in a wide circle, slowly, to change the angle of pull

Question 5

By paying out more anchor rode, you_________.
Select one:

a.
increase the possibility that your vessel will drag anchor

b.
decrease the holding power of your anchor

c.
decrease the swing of your vessel while at anchor

d.
increase the holding power of your anchor

Answer 5

d.

increase the holding power of your anchor

Question 6

The best method to stop a vessel from dragging anchor is to _________.
Select one:

a.
pay out more anchor rode

b.
reduce the length of the cable

c.
back the engines

d.
swing the rudder several times to work the anchor into the bottom

Answer 6

a.

pay out more anchor rode

Question 7

To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of_______________.
Select one:

a.
the weight of cable to weight of vessel

b.
the length of anchor to depth of water

c.
the length of the anchor line or anchor rode to the depth of the water

d.
the weight of cable to weight of anchor

Answer 7

c.

the length of the anchor line or anchor rode to the depth of the water

Question 8

The BEST method of protecting that portion of a fiber anchor line nearest the anchor from chafing on the bottom is by ____________.
Select one:

a.
using a synthetic line

b.
replacing that portion with a short length of chain

c.
using a hockle to keep that portion of the anchor line off the bottom

d.
using a small scope ratio

Answer 8

b.

replacing that portion with a short length of chain

Question 9

Which type of bottom, listed below, is best suited for holding an anchor of a small boat?
Select one:

a.
A mixture of mud and clay

b.
Rock and coral

c.
Loose sand

d.
Gravel

Answer 9

a.

A mixture of mud and clay

Question 10

What is the normal length of anchor rode used to anchor a vessel?
Select one:

a.
Five to seven times the depth of water

b.
Three to four times the depth of water

c.
An amount equal to the depth of the water

d.
Two times the depth of water

Answer 10

a.

Five to seven times the depth of water

Question 11

The holding power of an anchor at a given scope of cable increases when the ___________.
Select one:

a.
mooring line tension is increased

b.
amount of chain lying along the bottom increases

c.
amount of chain lying along the bottom decreases

d.
length of the catenary is reduced

Answer 11

b.

amount of chain lying along the bottom increases

Question 12

The best method of determining if a vessel is dragging anchor is to note _________.
Select one:

a.
how much the vessel sheers while at anchor

b.
the amount of line paid out

c.
changes in bearings of fixed objects onshore

d.
any change in the tautness of the anchor chain

Answer 12

c.

changes in bearings of fixed objects onshore

Question 13

Using a scope of 6, determine how much anchor rode you should put out to anchor in 12 feet (3.7 meters) of water.
Select one:

a.
48 feet (14.6 meters)

b.
2 feet (0.6 meters)

c.
18 feet (5.5 meters)

d.
72 feet (21.9 meters)

Answer 13

feet x scope
12 x 6
d. 72 feet (21.9 meters)

Question 14

A sufficient amount of anchor rode must be used when anchoring a vessel to ensure ____________.
Select one:

a.
the anchor flukes bite into the bottom of the seabed

b.
the vessel has enough room to swing while at anchor

c.
there is a sufficient scope of chain to keep the anchor on the bottom

d.
there is more chain out than there is in the chain locker

Answer 14

a.

the anchor flukes bite into the bottom of the seabed