Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? - ANSWER The front
What is the definition of "operating radius?" - ANSWER The distance from the center of rotation of the crane to the center of gravity of the load
Which area do truck cranes without a 5th outrigger generally have no lifting
capacity unless the manufacturer states otherwise? - ANSWER The front
What is the definition of "operating radius?" - ANSWER The distance from the
center of rotation of the crane to the center of gravity of the load
What applies to the capacities below the bold line shown on a load chart? -
ANSWER They are based on the stability of the crane
In which quadrant are rough terrain crane capacities generally greater? - ANSWER
Over the front
What percentage do most manufacturers requires a crane's load chart capacity to
be reduced by for duty cycle operations - such as high-volume concrete
placement? - ANSWER 20%
From which two points should the boom be measured? - ANSWER From the boom
hinge pins, to the center of the boom tip sheave
What is the preferred method of installing wire rope from a reel onto a hoist
drum? - ANSWER Running the rope from the top of the reel, to the top of the
drum.
, Over which quadrant are truck crane capacities usually greater? - ANSWER Over
the rear
According to OSHA, which accessible area of an operating crane must always be
barricaded? - ANSWER The swing radius of the rear of the rotating superstructure
What is the OSHA regulation governing cranes in construction? - ANSWER
1926.1400
According to ASME, what percentage of the manufacturer's crane rating must not
be exceeded if a load test is done on a repaired crane? - ANSWER 100%
Where is the tipping axis of a crawler crane located? - ANSWER It depends if the
idler or sprocket are in line or offset from the track rollers
What is the primary purpose of placing blocking under the ends of the tracks on a
crawler crane? - ANSWER To ensure that the tipping axis is the sprocket or idler,
rather than a track roller.
Suppose you are traveling a crawler crane with the drive trains to the rear, and
you need to turn right on hard, and level ground. What should you do? - ANSWER
Travel the left track forward to minimize wear.
When using outrigger jacks to level a crane, what is the best procedure to follow?
- ANSWER Make firm contact with all four jacks. Then operate two jacks at a time
on either side of the lowest corner to get to level. Last, make sure the crane is
high enough to have the tires off the ground.
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 shantelleG. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
