Exam (elaborations)
MA 1A Hoisting Questions and Answers 2024
- Course
- Institution
Exam of 3 pages for the course mass hoisting at mass hoisting (MA 1A Hoisting)
[Show more]
Content preview
MA 1A HoistingBroken wires on standing rope - answer2 broken wires in 1 lay beyond end connections,
more then 1 at end connection
Broken wires on rotation resistant wire rope - answer2 broken wires in 6 rope diameters
4 broken wires in 30 rope diameters
Any wire protruding from the core
Most common type of cable - answer Right regular lay
Running rope safety factor - answer3.5 to 1
Standing rope safety factor - answer3 to 1
Rotation resistant rope safety factor - answer5 to 1
Sling Safety factor - answer5 to 1
Strongest to weakest hitch - answerBasket, vertical, choker
Types of hitches - answerBasket, Choker, Double basket, Double Choker
Lower sling angle - answerGreater tension - preferred angle 60 degrees
Minimum wraps on a drum - answer2
More lays on a drum - answerLine pull decreases
Eccentric Reeving - answerCauses torsion on boom
Type of sling used when handling boom sections - answerSynthetic slings
Center of gravity - answerBelow lowest point of attachment = stable load
Remove rigging from service when - answerKinking, crushing, bird caging had occurred.
OSHA - 10 randomly distributed wires in 1 rope lay or 5 wires in 1 strand in 1 rope lay or
1 wire protruding from the core
Outer wires are worn by 1/3 of its normal diameter
OSHA 1910.184 - answerSling hooks must be replaced if throat has opening more than
15% of the original opening or twisted more than 10%
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now