NCCCO LATTICE BOOM GENERAL KNOWLEDGE | COMPLETE SOLUTION | RATED A+
The lattice boom is designed to take winds of up to 20 mph. from the side plus a full rated load, plus a direct side load equal to what percent of the rated load? - 2%
The part of the load chart governed by stability i...
The lattice boom is designed to take winds of up to 20 mph. from the side plus a full
rated load, plus a direct side load equal to what percent of the rated load? - 2%
The part of the load chart governed by stability is based on what percentage of capacity
while a crawler crane is working over the side quadrant? - A. 75%
The most unstable working quadrant for a crawler crane is the; - Side
What type of capacity is listed on a crane load chart? - Static
If the manufacture of a particular crane does not specifically permit pick and carry
operations what procedure must be followed during this operation? - Don't make any
pick and carry lifts
What is the main purpose of a jib/extension? - To extend reach higher or up and over
When the number of layers of rope on a drum increase the line pull___________. -
Decreases
When handling boom sections, the best place for slings to be attached is; - At the pin
connections at the ends of the top chords
Placing timber blocking under the tips of the tracks on a crawler crane will; - Make the
crane more stable
What is the major effect of stopping suddenly a rapid swing while operating long boom
crane? - Action may cause the crane boom collapse and/or overturn the crane
According to B30.10 hooks shall be removed from service when the throat opening
exceeds _____ the original throat opening. - 5%
On a crawler crane ground bearing pressure is greatest where? - Over the corner
During disassembly of a long boom, the pendant lines are connected at the maximum
cantilever point and the boom is slightly lifted off the ground, which boom connection
pins are to be removed next? - The bottom pins ahead of the cantilever point
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 Mboffin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
