LINE E2 Flashcards
Wire rope, should be stored and how to be taken care of?
Stored in a dry location off the ground, lubricated with oil regularly to prevent corrosion
?
Rasie or lower load
When would you use a bridle hitch for lifting?
Two or three legs are used together to form a bridal hitch is generally used on Lowe’s that have suitable attachment points to keep the load stable
What are two purposes of a choker hook sleeves?
Spreads tension, wide hooks, in order not to damage the sling.
It helps to hold the material from sliding except at the top unless double wrapped
When loaded to the breaking point nylon rope will stretch up to?
40% of its original length
What is a Twisted rope good for?
A Twisted synthetic rope is preferred for the lifelines because it will stretch somewhat to cushion the fall of a worker.
What sling type should be used to live 25 pieces of 25 ft long steel pipes?
Double-wrapped, double choker, double basket hitch
I’m pulling device that can either use a chain or cable is up
Come along
What must be done if a load is being lifted and accidentally comes in contact with the boom of a crane?
Inspect the crane
To remove from a shipping coil you should?
Pull it from the inside of the coil
The angle between the sling lag and vertical at up to 30° or reduced the working load limit by what percent
90%
How strong is polypropylene? Rope
It’s 60% as strong as nylon and his people observing 40% of the shock.
With wire rope what is the definition of Peening?
When wire rope strikes against a structural part of the machine or beats against a roller or itself the wire and strands are flattened and distorted and become brittle. This continuous pounding is called peening. Often this can be avoided by replacing protectors between the rope and object it is striking
What is a boom truck
A truck with a boom type crane for off loading materials
Sisal rope what are some of the characteristics?
Sisal rope is white, course textured and rough to touch. It’s weaker than manila rope and should only be used were cost is a factor and not strength
On a high voltage line of over 250,000 volts how far back should you stay back?
Minimum of 6 m, 20 ft
You if you overload Tirfor, come along Jack and once the shear pin breaks what happens
All movement will stop
When are spacer bars used?
Long loads such as gang forms, tilt ups, preventing tipping and stressing,
May natural fiber rope be used for hoisting with the powered hoist?
No
In what situation is it okay for a worker to ride the load
Never
Is it okay to replace a lost pin in a shackle with a high strength bolt?
No
When lifting with a sling, you must make sure that the sling is long enough so that the angle formed by the Sling from the horizontal is always greater than what?
60 degree
To join two ropes of the same diameter you should use a?
Reef knot
What is a bowline ?
a non-slip loop at the end of the rope
What’s the benefit of using taglines to control loads?
It allows you to do it from a safe distance
Padding should be applied to all Lowe’s that have?
Sharp corners
What kind of knot would you use to secure a rope to a plank, timber, post or pipe?
timber hitch
What is the advantage of a telehander compared to a standard type forklift.
At telehander has a higher lift and greater reach
Where should slings attach the load in relation to the center of the gravity?
Equal distance to or above the point of balance
Working load of an eye bolt?
Vertical pull no reduction in the working load limit.
15° vertical off the relational plane of the eye bolt will cause a 45% reduction.
30° from the vertical pull will cause a 65% reduction
45° will cause a reduction of 75% in working load limit
Access a 45° not recommended
What is the minimum safety factor to support workers?
10
Describe polyester rope?
Polyester rope is similar to nylon in the period but is not elastic, will only stretch 5% before breaking.
Polyester rope is as 87% strong as nylon and contain only 60% of nylon shock load.
Polyester does not lose any strength when wet unlike nylon it is unaffected by acids. However you should wash polyester ropes and slings with cold water whenever they’re exposed to any chemical
What is the maximum load that you can take a rope to?
1/9 of the ropes breaking strength
What type of knot would you tie it when tying down a load?
Trucker’s know
What type of rope is suitable for tagline
Polypropylene
How long should a tagline be?
Long enough to be safe
When rigging loose bundles around stock you should use? What type of rigging?
Double-wrapped basket hitches
What is a reef knot utilized for it?
Also known as a square knot.
He used to fasten two ropes of equal diameter together
A voltage line between 75000, 250,000. How far should you stay back from the high voltage line?
4.5 m, 15 ft
When several ropes are to be attached in a single hoop make a connection to the hook using up?
Shackle
Correctly installed wire rope clips will reduce the braking strength by what percent?
20%
The angle between the sling leg and vertical will reduce the working load limit , an angle over 30° up to 45°I will reduce the working load limit by how much percent
70%
If you use a cross sticks to stabilize a power you must place a cross sticks directly over
Existing cross sticks
What is the term standing part mean, when it comes to ropes
It’s the long part of the rope, the end of a rope is called end
For overhead lifting what type rope you should use
I single piece of rope
If cost is the factor what kind of rope do you use and strength is not important?
Sisal