- - AGRICULTURE CORE CURRICULUM  - -
   
   (CLF2000)  Advanced Core Cluster:  AGRICULTURAL MECHANICS
   
     (CLF2600)  Unit Title: ROPEWORK
   
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     (CLF2649)   Topic: UNIT EXAM                         Year(s)
                                                             1/2/3/4
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   Unit Exam: ROPEWORK
   
   1. Matching
   
     Bowline          _____             A. Used to shorten rope
     Clove Hitch      _____             B. Used to tie up an animal
     Manger Hitch     _____             C. Used to adjust a tent line
     Sheet Bend       _____             D. Used to join two ropes
     Sheep Shank      _____                of the same size together
     Square Knot      _____             E. Won't slip. Used in rescue
     Taut Line Hitch  _____                work.
                                          F. Used to join two ropes
                                             of unequal diameter together 
                                          G. Starts and ends lashings
    
   2. Name the three most common causes of injuries in ropework.
   
   
   
   
   3. List five materials used to make rope and the advantages and
      disadvantages of each.
   
   
   
   
   4. Define the term "breaking strength."
   
   
   
   
   5. Using the attached chart on rope strength, what size nylon rope 
      would you use to lift a market steer that weighs 1,200 pounds?
   
   
   
   
   6. What is the breaking strength of a 3/4" manila rope?
   
   
   
   
   7. What factors affect the selection of rope for a particular job?
                                   Table 1
   
                    Safe Working Strength of New Fiber Rope1
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                           Working Strength (Pounds)2
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    Rope
    Diameter   Natural Fiber                   Synthetic Fiber
    (inches) 
             Manila    Sisal      Nylon   Dacron   Polyethylene     Saran
   
     3/8     200       150         400      390        300           150
     1/2     440       350         780      745        600           300
     5/8     880       700       1,710    1,355      1,100           620
     3/4   1,080       865       2,000    1,870      1,600           800
     7/8   1,540     1,230       2,700    2,520      2,120         1,140
      1    1,800     1,440       3,600    3,220      2,800         1,600
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    1Taken from Rope on the Farm, Farmers' Bulletin No. 2130, United States
       Department of Agriculture.
   
    2Actual breaking strengths are at least 5 times the figures given.
   
   
   
   
   
   
   
   
   7/23/91 RRE/tf
   
   
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