UA RIGGING FINAL EXAM NEWEST ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
Oxygen bottles that are properly secured in a rack or stand designed for
lifting/handling would be considered a critical rigging option. - ANSWER: false
There are three slings hanging from a hook. Each sling has the capacity of 2,000
pounds. What is the heaviest load that could be lifted using these slings if they were
attached to a single point? - ANSWER: 2,000 lbs
The minimum depth of thread engagement for a 1/2 inch eyebolt into a steel object
is: - ANSWER: 3/4"
Given a 1/2 in steel walled empty cylindrical tank that is opened at one end,
calculate its weight (round answer to the nearest hundred). - ANSWER: 1800
What markings are required on hoists? - ANSWER: the manufacturer, model number,
rated load, and re-inspection due date
Which of the following markings are required on lashing? - ANSWER: the reinspect
due date, rated load
A motor that weighs over 80 of the capacity of the rigging gear used in the rigging
operation is considered a critical rigging operation is considered a critical rigging
operation. - ANSWER: false
Increasing the sling angle from horizontal _______ the stress in the sling. - ANSWER:
decreases
The area of this triangle with dimensions given in feet is: - ANSWER: 24 sqft
What is the minimum grade of chain required for chain slings? - ANSWER: grade 80
Two people should be used to pull the hand chain of a manual chain hoist when it
gets too hard for on person to pull. - ANSWER: false
Sling angle stress could contribute to an overload even if the slings selected had
enough capacity to carry the total load weight. - ANSWER: true
Which of the following attachment points can be used at full capacity when pulled at
any angle from vertical? - ANSWER: swivel hoist rings
To find sling angle stress... - ANSWER: multiply the weight in the attachment point
with the angle factor
, Who is required to perfom an inspection prior to using rigging gear, and what is this
inspection called? - ANSWER: the user, pre-use inspection
Detailed written procedures are required for every rigging operation. - ANSWER:
false
The rigging operating envelope contains the rigging gear and miscellaneous
equipment covered by P-307 section 14, the load itself and... - ANSWER: the load
rigging path, the gear or equipment's supporting structure
When a load is left suspended unattended from a chain hoist it must be secured.
How is the chain hoist secured - ANSWER: the chain is tied off or pad locked
What is the efficiency of a knot or bend? - ANSWER: 75
Never bend a wire rope around a diameter _______ itself. - ANSWER: smaller than
To whom or to what are the majority of crane and rigging accidents attributed? -
ANSWER: personnel error
What is the name of the knot or hitch shown below? (blue rope) - ANSWER: clove
hitch
a straight-line hitch is good for _____ of a sling rated load? - ANSWER: 100%
What must be used to tighten a swivel hoist ring to the manufacturer's
requirements? - ANSWER: a torque wrench
Attachment point #1 is 6 feet from the center of gravity (CG) and attachment point
#2 is 3 feet from the center of gravity (CG). There is a 10,000 lbs load attached. What
is the correct equation to find the weight distribution for attachment point #1? -
ANSWER: 3 divided by 9 multiplied by 10,000 ( x 10,000)
It is ok to tie a know in or install a bolt into a chain sling leg to shorten the sling. -
ANSWER: false
When rigging gear covered by p-307 section 14 fails while suspended from a
structure and drops the load it is a: - ANSWER: rigging accident
Why must hoisting be stopped once the load is completely off the ground? -
ANSWER: to determine sling angle stress
Distorted or twisted rigging hardware must be: - ANSWER: removed from service
For all critical rigging operations, a supervisor must review on-site conditions and... -
ANSWER: conduct a pre-job briefing
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