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Rigging Test - Class Flash Cards Exam 2024/2025 Questions With Completed & Verified Solutions.
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Rigging Test - Class Flash Cards Exam 2024/2025 Questions With Completed & Verified Solutions.
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Rigging Test - Class Flash CardsWhat Formulas do you use to find friction loss on sheaves? - ANS P-Plain bore - 10%
B-Bronze brushing - 5%
R-Roller bearing - 3%
What are the four basic end fittings for turn buckles? - ANS Eye, Clevis, Stub, & Hook
What are the three primary designs that allow sheaves to turn? - ANS Plain bore, Busting, &
Bearings
U-shaped fitting where rigging hardware is attached, that can pivot 180 degrees, a bail pin and a
socket head cap screw? - ANS Bail
FC
SC
IWRC - ANS Fiber Core
Strand Core
Independent Wire Rope Core
T/F?
The D/d ratio for a braided sling is approximately 20 times the component wire rope diameter? -
ANS True
What are the 3 basic designs of wire rope slings? - ANS Single-part, Braided, & Multipart
grommet
Which materials are most commonly used to manufacture a synthetic web sling? - ANS
Polyester & Nylon
Can you place spacers between swivel hoist rings? - ANS No
Why are synthetic slings able to absorb heavy shock loads? - ANS Because they stretch
T/F?
While the equipment used to move and place heavy objects has evolved over the centuries, the
application of basic rigging knowledge and technologies has changed very little? - ANS True
Eyebolt FoS. - ANS 5:1
What is the purpose of cleaning a chain before beginning inspection? - ANS To reveal any
defects hidden by the grease/dirt
, Name 4 things a rigger should look for during a visual chain inspection. - ANS Twist, Worn,
Stretch, or Gouges
T/F?
A single part wire rope sling is the most common type of sling used in rigging operations? - ANS
True
Large forged steel ring placed on a hoisting hook; used to attach rigging equipment? - ANS
Master link
What are 3 types of crafts people who are also riggers? - ANS Millwrights, Carpenters, and Pile
Drivers
U-shaped fitting used to make connections between slings and objects to be moved? - ANS
Shackle
What is the most important factor to the success of any rigging operations? - ANS Safety
T/F?
Because of their construction, braided wire rope slings are heavy and inflexible? - ANS False
Are shims okay under eyebolts? - ANS Yes, as long the eyebolt is tight and properly inline
T/F?
Synthetic web slings twist during hoisting? - ANS False
What are the 3 components of wire rope? - ANS Core, Strands, Wire
A chain is usually removed from service when wear reduces the diameter of any link by
approximately ______ or more? - ANS 10%
T/F?
Excessive heat can reduce wire strength? - ANS True
T/F?
The outer surface of 8x19 wire rope is smoother because it has more strands? - ANS True
When does most chain stretch? - ANS At 90% of break strength
How is the gross weight of a load calculated? - ANS The gross weight of object being picked
and total weight of rigging hardware (everything under the hook)
6x7 standard coarse laid - ANS Guy line wire
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