OS OS Seamanship and Rigging

Question 1

What type of knot is most suitable for joining two ropes of equal diameter?

Accepted Answer

Square (reef) knot

Answer

Bowline

Answer

Sheet bend

Answer

Clove hitch

Question 2

Which knot is used to make a fixed loop at the end of a line that will not slip under load?

Accepted Answer

Bowline

Answer

Clove hitch

Answer

Figure-eight knot

Answer

Rolling hitch

Question 3

What is a 'heaving line' used for?

Accepted Answer

Throwing a light line to a dock or another vessel to pull across a heavier mooring line

Answer

Measuring water depth

Answer

Securing cargo in the hold

Answer

Lifting heavy objects with a crane

Question 4

What does the term 'block and tackle' refer to in rigging?

Accepted Answer

A system of pulleys and rope used to gain mechanical advantage when lifting or pulling loads

Answer

A method of anchoring a vessel

Answer

A type of mooring buoy

Answer

A device for measuring rope tension

Question 5

What is the purpose of a 'thimble' in a wire rope splice or eye?

Accepted Answer

To protect the inner curve of a rope eye from chafing and wear

Answer

To increase the breaking strength of the wire

Answer

To connect two separate wire ropes together

Answer

To measure the diameter of the wire

Question 6

What does 'slack in the line' mean on a ship?

Accepted Answer

The line has excess length with no tension

Answer

The line is pulled too tight

Answer

The line is tangled

Answer

The line has reached its breaking strength