Oxygen bottles that are properly secured in a rack or stand designed for lifting/handling would
be considered a critical rigging option. - correct 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? - 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
Sling angle stress could contribute to an overload even if the slings selected had enough
capacity to carry the total load weight. - correct answer true
Which of the following attachment points can be used at full capacity when pulled at any angle
from vertical? - correct answer swivel hoist rings
To find sling angle stress... - correct 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? - correct answer the user, pre-use inspection
Detailed written procedures are required for every rigging operation. - correct answer false