Difference between revisions of "AY Honors/Knot Tying/Answer Key"

From Pathfinder Wiki
< AY Honors‎ | Knot TyingAY Honors/Knot Tying/Answer Key
(merge complete)
Line 1: Line 1:
−
[[Image:Splice on snap shackle.jpg|thumb|A line eye-spliced to a [[snap shackle]].]]
+
{{honor_header|2|1975|Recreation<br>General Conference<br>2001 Edition}}
−
'''Rope splicing''' in [[ropework]] is the forming of a semi-permanent join between two [[rope]]s or two parts of the same rope by partly untwisting and then interweaving their strands. Splices can be used to form a stopper at the end of a line, to form a loop or an eye in a rope, or for joining two ropes together. Splices are preferred to knotted rope, since whilst a knot reduces the strength by as much as 40% or more,  a splice retains up to 95% of the strength of the line. However, splicing usually results in a thickening of the line and if subsequently removed a distortion of the rope. Most types of splices are used on 3 strand rope, but some can be done on 12 or greater strand braided rope.
+
==1. Define the following terms:==
  
−
==Types of splices==
+
;a. Bight: The part of the rope or line, between the end and the standing part, on which a knot is formed
−
*'''back splice''' (also called an '''end splice''') - A splice where the strands of the end of the rope are spliced directly back into the end without forming a loop. It is used to finish off the end of the rope to keep it from fraying. The end of the rope with the splice is about twice the thickness of the rest of the rope.  With nylon and other plastic materials, the back splice is often no longer used; the rope strands are simply fused together with heat to prevent fraying.
+
;b. Running end: The free end of the rope, usually shorter. This is the end of the rope in which a knot is being tied.
−
*'''cut splice''' (originally called '''cunt splice''') - A splice similar to the eye splice. It is typically used for light lines (e.g., the log-line) where a single splice would tend to come undone, the rope being frequently wet. It makes a very strong knot. A cu(n)t splice is a join between two ropes, made by splicing the ends slightly apart, to make an eye in the joined rope which lies shut when the rope is taut.
+
;c. Standing part: The part of the rope between the Running end and the Standing end (the end that doesn't move, think of it as if someone is holding it)
−
*'''[[eye splice]]''' - A splice where the working end is spliced into the working part forming a loop.
+
;d. Underhand loop: A loop formed by passing the running end of a line under the standing part.
−
*'''horseshoe splice'''
+
;e. Overhand loop: A loop formed by passing the running end of a line over the standing part.
−
*'''long splice''' - A '''splice''' used to join two rope ends forming one rope the length of the total of the two ropes. The long splice, unlike most splice types, results in a splice that is only very slightly thicker than the rope without the splice, but sacrifices some of the strength of the short splice. It does this by replacing two of the strands of each rope end with those from the other, and cutting off some of the extra strands that result. The long splice allows the spliced rope to still fit through the same pulleys, which is necessary in some applications.
+
;f. Turn: {{:Adventist Youth Honors Answer Book/Knot/Turn}}
−
*'''short splice''' - Also a splice used to join the ends of two ropes, but the short splice is more similar to the technique used in other splices and results in the spliced part being about twice as thick as the non spliced part, and has greater strength than the long splice. The short splice retains more of the rope strength than any knots that join rope ends.
+
;g. Bend: A bend is used to tie two ropes together, as in the Sheetbend. Technically, even the Reef knot is a bend
−
*'''side splice'''
+
;h. Hitch: A hitch is used to tie a rope to a spar, ring or post, such as the Clove hitch. Hitches can also be used to tie one rope ONTO another rope, as in the Rolling hitch.
 +
;i. Splice: A knot formed by interweaving strands of rope rather than whole lines. More time consuming but usually stronger than simple knots.
 +
;j. Whipping: A binding knot used to prevent another line from fray.
  
−
Splices are often '''tapered'''  to make the thicker splice blend into the rest of the line. There are two main types of tapering, the standard and the so-called "West Coast Taper".  
+
==2. Know how to care for rope.==
−
*'''Standard tapers''' progressively remove a portion of each remaining strand -- one-third at a time is typical, resulting in a taper of two additional tucks beyond the splice -- thus making each successive tuck produce a narrower splice. This is only practical with laid-lines, i.e., those made up of numerous strands laid side by side.  
+
* a. Keep the rope clean.
−
*'''West Coast tapers''' are effected by extra-tucks of entire strands, such that the 2nd strand is interweaved one more time than the first and the third is interweaved an additional time after the 2nd.
+
* b. Always coil a rope before storing it.
 +
* c. Make sure wet rope is dry before coiling it.
 +
* d. Return rope to its proper place after using it.
  
−
A [[fid]] is a hand tool made from wood or bone and is used in the process of working with rope.  It is conical instrument with a somewhat long taper.  A variety of fid diameters are used depending on the size of rope it is being used with.  
+
==3. Describe the difference between laid rope and braided rope and list three uses of each.==
 +
In laid rope, three bundles of fiber or twine are twisted in the same direction, placed close to each other, and allowed to twist together.  In braided rope, the fibers are woven together, often around some core material.
  
−
A [[Marlinspike]] is a tool, commonly part of a sailor's pocketknife, used to separate strands of rope from one another. It is basically a 3"-4" steel spike, slightly curved, with a non-sharp point that tapers quickly out to a 1/4" to 3/8" shaft in the space of the first 1" length.
+
{{TODO|list more uses (need three each!)}}
  
−
==See also==
+
===Uses of Laid Rope===
−
* [[Knot]]
+
# Repels water
−
* [[Whipping knot]]
+
# Able to withstand immense strain. 
 +
#
  
−
==External links==
+
===Uses of Braided Rope===
−
* [http://www.animatedknots.com/splice/ Eye Splice Animation Using Rope - with Discussion]
+
# Works well with pulleys and rigging.
−
* [http://www.neropes.com/SplicingGuideChoice.aspx New England Ropes Splicing Guide]
+
# Spinning (lariats and lassos)
−
* [http://www.tollesburysc.co.uk/Knots/Rope_splice.htm Short splice animation]
+
#
−
* [http://www.tollesburysc.co.uk/Knots/Eye_splice.htm Eye splice animation]
 
−
* [http://southseas.nla.gov.au/refs/falc/1243.html William Falconer's Dictionary of the Marine]
 
−
* [http://www.bruzelius.info/Nautica/Etymology/English/Steel(1794)_p161.html Steel: ''The Elements and Rigging and Seamanship'' (1794) from The Maritime History Virtual Archives]
 
−
* [[Alpheus Hyatt Verrill|A. Hyatt Verrill]] ''[http://www.gutenberg.org/etext/13510 Knots, Splices and Rope Work]'' from[[Project Gutenberg]]
 
−
* Guide to Wire-Rope Splicing - [http://kayfelix.8td.com/splicing.pdf Mirror1] - [http://www.geocities.com/thelonelysailor/splicing.pdf Mirror2]
 
−
* [http://home.new.rr.com/theys/ Photos of marlinspikes and fids]
 
  
−
[[Category:Knots]]
+
==4. Identify the following types of rope:==
 +
;a. Manila: Manila is a type of fiber obtained from the leaves of the abacá (Musa textilis), a relative of the banana. It is mostly used to make ropes and it is one of the most durable of the natural fibers, besides true hemp.  Manila is a coarse, brown fiber, about the same color and feel as a coconut shell.
 +
;b. Sisal: Sisal is valued for cordage use because of its strength, durability, ability to stretch, affinity for certain dyestuffs, and resistance to deterioration in saltwater.  Sisal ropes and twines are widely employed for marine, agricultural (bailing twine), and general industrial use. Sisal fibers are smooth, straight and yellow and can be long or short.
 +
;c. Nylon: Nylon rope is often white, but any color is possible.  It has a smooth, silky feeling to it, and it coils easily.  Nylon rope does not float in water.  It is a synthetic-fiber rope.
 +
;d. Polypropylene: Polypropylene rope is most often yellow, though any color is possible.  It is often used in marine applications because it floats in water.  The rope is sometimes difficult to tie as it is somewhat stiff and brittle.  It is a synthetic-fiber rope.
  
−
[[de:Spleißen (Seilkunde)]]
+
The easiest way to make an initial identification of a rope is to visit a hardware store where rope is sold.  The packaging will tell you what the rope is made of.  If you want to be sure, buy some of each type (with the labeling) or examine it closely in the store.
−
[[fr:Épissure]]
+
 
−
[[fi:Pleissaus]]
+
==5. What are some advantages and disadvantages of synthetic rope?==
−
[[ru:Сплесень]]
+
===Advantages===
 +
*Improved abrasion-resistance
 +
*Better UV-resistance
 +
*Lighter
 +
*Length does not vary as much when wet
 +
*Rot-resistant
 +
===Disadvantages===
 +
*Some synthetics do not hold knots well
 +
*More slippery
 +
*Melts when heated
 +
 
 +
==6. Do the following to rope:==
 +
===a. Splice===
 +
===b. Eye splice===
 +
===c. Back splice===
 +
===d. Finish the end of a rope with a double crown, whipping, or a Matthew Walker's knot.===
 +
==7. Make a six-foot piece of three-strand twisted rope from native materials or twine.==
 +
 
 +
{{:Adventist Youth Honors Answer Book/Knots/Making rope}}
 +
 
 +
==8. From memory tie at least 20 of the following knots and know their common uses and limitations. Demonstrate how they are used.==
 +
===Anchor bend===
 +
{{:Adventist Youth Honors Answer Book/Knot/Anchor bend}}
 +
===Bowline===
 +
{{:Adventist Youth Honors Answer Book/Knot/Bowline}}
 +
===Bowline on a bight===
 +
{{:Adventist Youth Honors Answer Book/Knot/Bowline on a bight}}
 +
 
 +
===Butterfly loop knot or Alpine butterfly knot ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Alpine butterfly}}
 +
 
 +
===Carrick bend ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Carrick bend}}
 +
===Cat's paw ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Cat's paw}}
 +
===Clove hitch ===
 +
{{Knot_clove_hitch}}
 +
 
 +
===Constrictor knot ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Constrictor}}
 +
===Crown knot ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Crown}}
 +
===Double bow ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Double bowline}}
 +
 
 +
===Double sheet bend ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Double sheet bend}}
 +
===Figure eight ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Figure_8}}
 +
 
 +
===Fisherman's bend ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Fisherman's bend}}
 +
===Fisherman's loop ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Fisherman's loop}}
 +
===Halter hitch ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Halter hitch}}
 +
===Hunter's bend ===
 +
{{:Adventist Youth Honors Answer Book/Knot/Hunter's bend}}
 +
===Lariat or Bowstring knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Lariat}}
 +
===Lark's head===
 +
{{:Adventist Youth Honors Answer Book/Knot/Lark's head}}
 +
===Man harness knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Man harness}}
 +
===Miller's knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Miller's}}
 +
===Packer's knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Packer's}}
 +
===Pipe hitch===
 +
{{:Adventist Youth Honors Answer Book/Knot/Pipe hitch}}
 +
===Prusik knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Prusik}}
 +
===Sheepshank===
 +
{{:Adventist Youth Honors Answer Book/Knot/Sheepshank}}
 +
 
 +
===Sheet bend===
 +
{{:Adventist Youth Honors Answer Book/Knot/Sheetbend}}
 +
 
 +
===Slip knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Slip}}
 +
===Slipped half hitch===
 +
{{:Adventist Youth Honors Answer Book/Knot/Slipped half hitch}}
 +
===Slipped sheet bend===
 +
{{:Adventist Youth Honors Answer Book/Knot/Slipped sheet bend}}
 +
===Square knot===
 +
{{Knot_square}}
 +
 
 +
===Stevedore's knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Stevedore's}}
 +
===Strangle knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Strangle}}
 +
===Surgeon's knot===
 +
{{:Adventist Youth Honors Answer Book/Knot/Surgeons}}
 +
 
 +
===Tautline hitch===
 +
{{:Adventist Youth Honors Answer Book/Knot/Taut-line hitch}}
 +
 
 +
===Timber hitch===
 +
{{:Adventist Youth Honors Answer Book/Knot/Timber hitch}}
 +
===Two half hitches===
 +
{{:Adventist Youth Honors Answer Book/Knot/Two_half_hitches}}
 +
 
 +
==References==
 +
 
 +
* [[W:List_of_knots|List of Knots]] on Wikipedia
 +
 
 +
''[http://knottyingvideo.com "Why Knot? an introduction to knots, splices & rope"] DVD and rope available through [http://adventsource.org/dvdvideo_2.aspx?ID=377 AdventSource.org]. Every requirement is completely covered by this resource.
 +
''
 +
 
 +
[[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]

Revision as of 22:24, 21 June 2007

Template:Honor header

1. Define the following terms:

a. Bight
The part of the rope or line, between the end and the standing part, on which a knot is formed
b. Running end
The free end of the rope, usually shorter. This is the end of the rope in which a knot is being tied.
c. Standing part
The part of the rope between the Running end and the Standing end (the end that doesn't move, think of it as if someone is holding it)
d. Underhand loop
A loop formed by passing the running end of a line under the standing part.
e. Overhand loop
A loop formed by passing the running end of a line over the standing part.
f. Turn
Adventist Youth Honors Answer Book/Knot/Turn
g. Bend
A bend is used to tie two ropes together, as in the Sheetbend. Technically, even the Reef knot is a bend
h. Hitch
A hitch is used to tie a rope to a spar, ring or post, such as the Clove hitch. Hitches can also be used to tie one rope ONTO another rope, as in the Rolling hitch.
i. Splice
A knot formed by interweaving strands of rope rather than whole lines. More time consuming but usually stronger than simple knots.
j. Whipping
A binding knot used to prevent another line from fray.

2. Know how to care for rope.

  • a. Keep the rope clean.
  • b. Always coil a rope before storing it.
  • c. Make sure wet rope is dry before coiling it.
  • d. Return rope to its proper place after using it.

3. Describe the difference between laid rope and braided rope and list three uses of each.

In laid rope, three bundles of fiber or twine are twisted in the same direction, placed close to each other, and allowed to twist together. In braided rope, the fibers are woven together, often around some core material.

To do:
list more uses (need three each!)

Uses of Laid Rope

  1. Repels water
  2. Able to withstand immense strain.

Uses of Braided Rope

  1. Works well with pulleys and rigging.
  2. Spinning (lariats and lassos)

4. Identify the following types of rope:

a. Manila
Manila is a type of fiber obtained from the leaves of the abacá (Musa textilis), a relative of the banana. It is mostly used to make ropes and it is one of the most durable of the natural fibers, besides true hemp. Manila is a coarse, brown fiber, about the same color and feel as a coconut shell.
b. Sisal
Sisal is valued for cordage use because of its strength, durability, ability to stretch, affinity for certain dyestuffs, and resistance to deterioration in saltwater. Sisal ropes and twines are widely employed for marine, agricultural (bailing twine), and general industrial use. Sisal fibers are smooth, straight and yellow and can be long or short.
c. Nylon
Nylon rope is often white, but any color is possible. It has a smooth, silky feeling to it, and it coils easily. Nylon rope does not float in water. It is a synthetic-fiber rope.
d. Polypropylene
Polypropylene rope is most often yellow, though any color is possible. It is often used in marine applications because it floats in water. The rope is sometimes difficult to tie as it is somewhat stiff and brittle. It is a synthetic-fiber rope.

The easiest way to make an initial identification of a rope is to visit a hardware store where rope is sold. The packaging will tell you what the rope is made of. If you want to be sure, buy some of each type (with the labeling) or examine it closely in the store.

5. What are some advantages and disadvantages of synthetic rope?

Advantages

  • Improved abrasion-resistance
  • Better UV-resistance
  • Lighter
  • Length does not vary as much when wet
  • Rot-resistant

Disadvantages

  • Some synthetics do not hold knots well
  • More slippery
  • Melts when heated

6. Do the following to rope:

a. Splice

b. Eye splice

c. Back splice

d. Finish the end of a rope with a double crown, whipping, or a Matthew Walker's knot.

7. Make a six-foot piece of three-strand twisted rope from native materials or twine.

Adventist Youth Honors Answer Book/Knots/Making rope

8. From memory tie at least 20 of the following knots and know their common uses and limitations. Demonstrate how they are used.

Anchor bend

Adventist Youth Honors Answer Book/Knot/Anchor bend

Bowline

Adventist Youth Honors Answer Book/Knot/Bowline

Bowline on a bight

Adventist Youth Honors Answer Book/Knot/Bowline on a bight

Butterfly loop knot or Alpine butterfly knot

Adventist Youth Honors Answer Book/Knot/Alpine butterfly

Carrick bend

Adventist Youth Honors Answer Book/Knot/Carrick bend

Cat's paw

Adventist Youth Honors Answer Book/Knot/Cat's paw

Clove hitch

Template:Knot clove hitch

Constrictor knot

Adventist Youth Honors Answer Book/Knot/Constrictor

Crown knot

Adventist Youth Honors Answer Book/Knot/Crown

Double bow

Adventist Youth Honors Answer Book/Knot/Double bowline

Double sheet bend

Adventist Youth Honors Answer Book/Knot/Double sheet bend

Figure eight

Adventist Youth Honors Answer Book/Knot/Figure 8

Fisherman's bend

Adventist Youth Honors Answer Book/Knot/Fisherman's bend

Fisherman's loop

Adventist Youth Honors Answer Book/Knot/Fisherman's loop

Halter hitch

Adventist Youth Honors Answer Book/Knot/Halter hitch

Hunter's bend

Adventist Youth Honors Answer Book/Knot/Hunter's bend

Lariat or Bowstring knot

Adventist Youth Honors Answer Book/Knot/Lariat

Lark's head

Adventist Youth Honors Answer Book/Knot/Lark's head

Man harness knot

Adventist Youth Honors Answer Book/Knot/Man harness

Miller's knot

Adventist Youth Honors Answer Book/Knot/Miller's

Packer's knot

Adventist Youth Honors Answer Book/Knot/Packer's

Pipe hitch

Adventist Youth Honors Answer Book/Knot/Pipe hitch

Prusik knot

Adventist Youth Honors Answer Book/Knot/Prusik

Sheepshank

Adventist Youth Honors Answer Book/Knot/Sheepshank

Sheet bend

Adventist Youth Honors Answer Book/Knot/Sheetbend

Slip knot

Adventist Youth Honors Answer Book/Knot/Slip

Slipped half hitch

Adventist Youth Honors Answer Book/Knot/Slipped half hitch

Slipped sheet bend

Adventist Youth Honors Answer Book/Knot/Slipped sheet bend

Square knot

Template:Knot square

Stevedore's knot

Adventist Youth Honors Answer Book/Knot/Stevedore's

Strangle knot

Adventist Youth Honors Answer Book/Knot/Strangle

Surgeon's knot

Adventist Youth Honors Answer Book/Knot/Surgeons

Tautline hitch

Adventist Youth Honors Answer Book/Knot/Taut-line hitch

Timber hitch

Adventist Youth Honors Answer Book/Knot/Timber hitch

Two half hitches

Adventist Youth Honors Answer Book/Knot/Two half hitches

References

"Why Knot? an introduction to knots, splices & rope" DVD and rope available through AdventSource.org. Every requirement is completely covered by this resource.

Retrieved from "https://wiki.pathfindersonline.org/index.php?title=AY_Honors/Knot_Tying/Answer_Key&oldid=13081"