Rigging 101 Final Exam Questions with Correct Answers 100% Verified Oxygen bottles that are properly secured in a rack or stand designed for lifting/handling would be considered a critical rigging option. - Correct Answers 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? - Correct Answers 2,000 lbs The minimum depth of thread engagement for a 1/2 inch eyebolt into a steel object is: - Correct Answers 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 Answers 1800 What markings are required on hoists? - Correct Answers the manufacturer, model number, rated load, and re-inspection due date Which of the following markings are required on lashing? - Correct Answers 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 Answers false Increasing the sling angle from horizontal _______ the stress in the sling. - Correct Answers decreases The area of this triangle with dimensions given in feet is: - Correct Answers 24 sqft What is the minimum grade of chain required for chain slings? - Correct Answers 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 Answers false 1 / 2
Sling angle stress could contribute to an overload even if the slings selected had enough capacity to carry the total load weight. - Correct Answers true Which of the following attachment points can be used at full capacity when pulled at any angle from vertical? - Correct Answers swivel hoist rings To find sling angle stress... - Correct Answers 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? - Correct Answers the user, pre-use inspection Detailed written procedures are required for every rigging operation. - Correct Answers false The rigging operating envelope contains the rigging gear and miscellaneous equipment covered by P- 307 section 14, the load itself and... - Correct Answers 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 Answers the chain is tied off or pad locked What is the efficiency of a knot or bend? - Correct Answers 75 Never bend a wire rope around a diameter _______ itself. - Correct Answers smaller than To whom or to what are the majority of crane and rigging accidents attributed? - Correct Answers personnel error What is the name of the knot or hitch shown below? (blue rope) - Correct Answers clove hitch a straight-line hitch is good for _____ of a sling rated load? - Correct Answers 100% What must be used to tighten a swivel hoist ring to the manufacturer's requirements? - Correct Answers a torque wrench
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