Mobile Crane Review Questions and Answers 100% Verified
9 views 0 purchase
Course
Mobile Crane Operator
Institution
Mobile Crane Operator
Mobile Crane Review Questions and Answers 100% VerifiedMobile Crane Review Questions and Answers 100% VerifiedMobile Crane Review Questions and Answers 100% VerifiedMobile Crane Review Questions and Answers 100% Verified
What is the purpose of placing mats or cribbing under or cribbing under outri...
Mobile Crane Review Questions
and Answers 100% Verified
What is the purpose of placing mats or cribbing under or cribbing under outrigger
floats? - ANSWER - Distribute the force over a larger area.
Where is the best location for leveling a crane? - ANSWER - Upperworks. (A
revolving frame of equipment on which operating machinery are mounted along
operator's can)
Before leveling a mobile crane on outriggers, an operator should ensure: - ANSWER
- There is no weight of the crane bearing on any tires.
Operating a mobile crane with a long boom, on uneven ground, what support
condition should be considered? - ANSWER - Keeping a 90 degree angle between
cylinder rod and pad.
When may blocking (cribbing) be placed under outrigger beams on mobile cranes? -
ANSWER - Never approved.
Mobile cranes should be level to within what percent of grade? - ANSWER - 1 %
Timber crane mats work best when they are: - ANSWER - Bolted together
When arriving in the crane at the job site, the operator should first determine the
condition of the: - ANSWER - Access roads
What surface listed below would Not be a good location for assembly or setup of a
mobile crane? - ANSWER - A. Above compacted fill
B. Above highway asphalt
C. Above underground vaults
,D. Above highway concrete
it is important to know when lubricating crane hoist wire rope, that the lubricant
must:
a. not hinder visual inspection
b. not be applied in direct sunlight
c. not be applied prior to use
d. not be applied to regular lay wire rope - ANSWER - not hinder visual inspection
how often is the competent person required to inspect the running wire ropes on a
mobile wire?
a. each shift
b. each year
c. each week
d. each month - ANSWER - each shift
Each outrigger pad and its blocking should be sufficient to support? - ANSWER - The
total weight of the crane and its load.
How does high wind affect a mobile crane with a long boom? - ANSWER - Introduces
side load onto the boom
When is the only time the outrigger beams should be less than fully extended? -
ANSWER - The load chart indicates that this is allowed (always make sure that it is
safe first)
What is the primary purpose for a rooster sheave or auxiliary boom point sheave? -
ANSWER - separate the load hoist lines.
Eccentric main boom tip reeving causes which of the following: - ANSWER - twisting
of the main boom
, which type of wire rope listed below is installed on MOST cranes?
a. right regular lay
b. right alternate lay
c. left regular lay
d. left alternate lay - ANSWER - a. right regular lay
The hoist drum flange shall extend a minimum of _______ over the top layer of wire
rope at all times while crane is in operation.
a. 1/2 inch
b. 1 inch
c. 1 1/2 inch
d. 2 inch - ANSWER - 1/2 inch
Which type of wire rope listed below is installed on most cranes?
a. main hoist line
b. boom hoist line
c. Auxiliary hoist line
d. pendant line - ANSWER - pendant line
when lifting on outriggers, the floats or pads should always be:
a. sufficient to support three times the applies load
b. raised to touch the tires firmly on the ground
c. secured to the outriggers cylinder
d. secured to the mats - ANSWER - secured to the outriggers cylinder
On a mobile crane, what is the weight of the stowed jib that is deducted in load
chart calculations called?
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 NursingTutor1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
