Rigging Final Exam Questions and
Answers 100% Verified
According to OSHA, what conditions require synthetic fiber rope to be removed from service?
✔✔It must be removed from service if there are signs of abnormal wear, powdered fibers
between the strands, broken or cut fibers, variation in size or roundness of strands.
One major manufacturer lists their 1/2" three strand rope as having a catalog breaking strength of
5600 lbs. Using the industry standard design factor, determine the working load limit. ✔✔5600/5
= 1120lbs working load limit
Which knot is often called the king of knots? ✔✔The Bowline. It is easily untied after
supporting a heavy load.
What are OSHA's requirements for inspecting wire rope? ✔✔They
There are two variations of the square knot that should be avoided for rigging purposes. What are
they? ✔✔The thief knot, because the tension is crossways it does not perform as well as the
square knot.
The grief or "whatknot" is a trick knot and often falls apart when tension is applied.
, What is the efficiency rating of a bowline on a bight? ✔✔It is 65% efficient.
What is the efficiency rating of a running bowline? ✔✔It is 50% efficient.
What is the efficiency rating of a clove hitch? ✔✔It is 60% efficient
Explain what it helps to begin a splice with a tracer strand. ✔✔Start by tucking the tracer strand
back into itself, this gives you a good reference point to start the splice.
How far must the tails project beyond the last full tuck in 3/4" rope? ✔✔The tails must project at
least six rope diameters for all rope 1" and under.
Which of the following splices is not rated for efficiency?
a. eye splice
b. short splice
c. back splice ✔✔c. Back splices prevent the ends of a rope from fraying and therefore has no
efficiency rating
Answers 100% Verified
According to OSHA, what conditions require synthetic fiber rope to be removed from service?
✔✔It must be removed from service if there are signs of abnormal wear, powdered fibers
between the strands, broken or cut fibers, variation in size or roundness of strands.
One major manufacturer lists their 1/2" three strand rope as having a catalog breaking strength of
5600 lbs. Using the industry standard design factor, determine the working load limit. ✔✔5600/5
= 1120lbs working load limit
Which knot is often called the king of knots? ✔✔The Bowline. It is easily untied after
supporting a heavy load.
What are OSHA's requirements for inspecting wire rope? ✔✔They
There are two variations of the square knot that should be avoided for rigging purposes. What are
they? ✔✔The thief knot, because the tension is crossways it does not perform as well as the
square knot.
The grief or "whatknot" is a trick knot and often falls apart when tension is applied.
, What is the efficiency rating of a bowline on a bight? ✔✔It is 65% efficient.
What is the efficiency rating of a running bowline? ✔✔It is 50% efficient.
What is the efficiency rating of a clove hitch? ✔✔It is 60% efficient
Explain what it helps to begin a splice with a tracer strand. ✔✔Start by tucking the tracer strand
back into itself, this gives you a good reference point to start the splice.
How far must the tails project beyond the last full tuck in 3/4" rope? ✔✔The tails must project at
least six rope diameters for all rope 1" and under.
Which of the following splices is not rated for efficiency?
a. eye splice
b. short splice
c. back splice ✔✔c. Back splices prevent the ends of a rope from fraying and therefore has no
efficiency rating
