be considered a cri cal rigging op on. - Ans 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 li ed using these slings if they were a ached to a single
point? - Ans 2,000 lbs
The minimum depth of thread engagement for a 1/2 inch eyebolt into a steel object is: - Ans
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). - Ans 1800
What markings are required on hoists? - Ans the manufacturer, model number, rated load, and
re-inspec on due date
Which of the following markings are required on lashing? - Ans the reinspect due date, rated
load
A motor that weighs over 80 of the capacity of the rigging gear used in the rigging opera on is
considered a cri cal rigging opera on is considered a cri cal rigging opera on. - Ans false
Increasing the sling angle from horizontal _______ the stress in the sling. - Ans decreases
The area of this triangle with dimensions given in feet is: - Ans 24 sq
What is the minimum grade of chain required for chain slings? - Ans 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. - Ans false
Sling angle stress could contribute to an overload even if the slings selected had enough
capacity to carry the total load weight. - Ans true
Which of the following a achment points can be used at full capacity when pulled at any angle
from ver cal? - Ans swivel hoist rings
To find sling angle stress... - Ans mul ply the weight in the a achment point with the angle
factor
Who is required to perfom an inspec on prior to using rigging gear, and what is this inspec on
called? - Ans the user, pre-use inspec on
Detailed wri en procedures are required for every rigging opera on. - Ans false
The rigging opera ng envelope contains the rigging gear and miscellaneous equipment covered
by P-307 sec on 14, the load itself and... - Ans the load rigging path, the gear or equipment's
suppor ng structure
When a load is le suspended una ended from a chain hoist it must be secured. How is the
chain hoist secured - Ans the chain is ed off or pad locked
What is the efficiency of a knot or bend? - Ans 75
Never bend a wire rope around a diameter _______ itself. - Ans smaller than