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Rigging 101 Final Exam Test
In general, you should never place the eye of the wire rope sling around an object that has a diameter greater than - Correct Answer ✔️ ✔️ 1/
Limit switches or chain stops must not be relied upon to stop the movement of the hoist during load movement. - Correct Answer ✔️ ✔️ true
The size of shackle that can be used in the eye of a wire rope sling must be ________ the wire rope size? - Correct Answer ✔️ ✔️ equal to or greater than
Calculate the tension in leg A - Correct Answer ✔️ ✔️ 1,607 lbs
You can hang a chain fall from staging to lift a load as long as it looks like it can handle the load being lifted. - Correct Answer ✔️ ✔️
false
A box has 27 cubic ft of sand in it. sand weighs 105 lbs per cubic ft. the box weighs 1,200 lbs empty. the correct equation to find the total weight is? - Correct Answer ✔️ ✔️ 27x105=2,835+1,200= 4,035 lbs
An angular pull of 45 degrees is allowed on non shouldered type eye bolts? - Correct Answer ✔️ ✔️ false
The volume of the cylinder is ______ cubic feet - Correct Answer ✔️
✔️ 9.
When a sling is used in a choker configuration, its capacity is - Correct
Answer ✔️ ✔️ decreased
what type of rigging operations would removing and replacing a highly sensitive electronic cabinet be considered? - Correct Answer ✔️ ✔️
complex
When a side-load is placed on a shackle, what is the shackle rated load reduced by? - Correct Answer ✔️ ✔️ 50%
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? - Correct Answer
✔️ ✔️ 2,000 lbs
The minimum depth of thread engagement for a 1/2 inch eyebolt into a steel object is: - Correct 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). - Correct Answer ✔️ ✔️ 1800
What markings are required on hoists? - Correct Answer ✔️ ✔️
the manufacturer, model number, rated load, and re-inspection due date
Which of the following markings are required on lashing? - Correct
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. - Correct Answer ✔️ ✔️
false
Increasing the sling angle from horizontal _______ the stress in the sling. - Correct Answer ✔️ ✔️ decreases
The area of this triangle with dimensions given in feet is: - Correct Answer ✔️ ✔️ 24 sqft
What is the minimum grade of chain required for chain slings? - Correct 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. - Correct Answer ✔️
✔️ false
and... - Correct 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 - Correct Answer ✔️ ✔️ the chain is tied off or pad locked
What is the efficiency of a knot or bend? - Correct Answer ✔️ ✔️ 75
Never bend a wire rope around a diameter _______ itself. - Correct Answer ✔️ ✔️ smaller than
To whom or to what are the majority of crane and rigging accidents attributed? - Correct Answer ✔️ ✔️ personnel error
What is the name of the knot or hitch shown below? (blue rope) - Correct Answer ✔️ ✔️ clove hitch
a straight-line hitch is good for _____ of a sling rated load? - Correct
Answer ✔️ ✔️ 100%
What must be used to tighten a swivel hoist ring to the manufacturer's requirements? - Correct 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? - Correct Answer ✔️ ✔️ 3 divided by 9 multiplied by 10,000 (3 / 9 x 10,000)
It is ok to tie a know in or install a bolt into a chain sling leg to shorten the sling. - Correct Answer ✔️ ✔️ false
When rigging gear covered by p-307 section 14 fails while suspended from a structure and drops the load it is a: - Correct Answer ✔️ ✔️
rigging accident
To find the weight of a piece of aluminum plate, you would multiply ... - Correct Answer ✔️ ✔️ square feet times material weight per square foot based on a specified thickness
If component failure occurs, such as motor burnout, and does not result in damage, the component failure is considered: - Correct Answer ✔️ ✔️ a non-accident
Which of the following eyebolts may be loaded outside the plane of the eye? - Correct Answer ✔️ ✔️ all of the above
Sometimes it might be necessary for personnel to reach under a suspended load. What parts of the body are permitted under a suspended load and who must this be approved by? - Correct Answer
✔️ ✔️ Arms up to elbows, approved by the lead rigger or rigger-in- charge
What can be used to align the eye of a shouldered eyebolt? - Correct
Answer ✔️ ✔️ lock washers
What are the two types of rigging gear inspections? - Correct Answer
✔️ ✔️ periodic and pre-use
When making a four-point lift using slings, they should normally be chosen such that _____ legs have/has the capacity to support the entire load weight including the additional stress due to lifting angle. - Correct Answer ✔️ ✔️ 2
Which of the following shackles must never be side loaded? - Correct Answer ✔️ ✔️ round pin shackle
What is the best way to prevent a load from singing when it is lifted using a crane or hoist? - Correct Answer ✔️ ✔️ center the hook over the cg of the load
A padeye with a cracked weld may be used if the crack does not extend more than one half the length of the weld. - Correct Answer ✔️ ✔️
false
What are you required to do when moving loads through areas that have small clearance? - Correct Answer ✔️ ✔️ Take measurements and use a positive means of control
Hoist hooks must have latches or be moused during lifting operations. - Correct Answer ✔️ ✔️ true
what is the minimum number of parts of lashing required to support a load - Correct Answer ✔️ ✔️ 3
If you have an accident with a crane or you find damage and suspect an accident has happened, your first step is to? - Correct Answer ✔️ ✔️ stop operations as soon as safely possible
Rigging hardware such as eyebolts, links, rings, and shackles are required to have a periodic inspection every 2 years. - Correct Answer ✔️ ✔️ false
