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Rigging & Hoisting BCIT Study Questions Solved 100% Correct| Verified
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Rigging & Hoisting BCIT Study Questions Solved 100% Correct| Verified
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Rigging & Hoisting BCIT Study QuestionsSolved 100% Correct| Verified
what is the darkest and poorest grade of manila rope?
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hardware store rope
describe sisal rope:
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white, coarse-textured, and rough to the touch. sisal rope is weaker than manila and should be
used only where cost rather than strength is the major factor
what should natural fibre not be used for?
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used for hoisting with a power hoist
nylon is approximately how many times stronger than manila?
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2 1/2 times stronger than manila
nylon has an elastic quality and will stretch up to what percent of its length?
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40% of its length
nylon rope loses how much percent of its strength when wet?
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10% of its strength
Nylon rots and is affected by mildew. T or F?
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False. nylon does not rot, and is unaffected by mildew
,what temperatures can nylon rope withstand?
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150 degrees Celsius (300 degrees Fahrenheit)
why can nylons rope elasticity be a hindrance?
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can be a hindrance if you are trying to lift loads in areas with restricted headroom
what percent can polyester rope stretch until it breaks?
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5%
how strong is polyester pipe compared to nylon rope?
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87% as strong as nylon
polyester can withstand how much of nylons shock load?
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60%
does polyester lose any strength when wet?
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nope.
is polyester affected by acids or alkalis?
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nope
does polypropylene rope sink?
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no. polypropylene rope is lightweight and floats on water
, the temperature of boiling water gradually softens polypropylene and loses how much
percent of its strength?
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40% of its strength
does polypropylene deteriorates rapidly when exposed to sunlight?
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yea
polypropylene rope is how strong as nylon? and absorb how much of the shock load of nylon?
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60% of its strength.
40% of its shock load.
what does WLL stand for?
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Working Load Limits
what is WLL?
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its the maximum load that a rigging component may carry and meet the safety factors set by
WCB
the minimum safety factor for rigging used to support workers is?
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10
lifting materials with a sling made of nylon fibre rope requires a safety factor of what?
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9
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