piece of equipment? - ANSWER Vendor Technical Manual
Rigging specifications for a specific piece of equipment may be found in: - ANSWER Ven-
dor Technical Manual
If the equipment you are working on has a written procedure for performing a lift and you
find it differs from the manufacturers specifications for lifting, you should: - ANSWER
Stop the job, get clarification, and a procedure change
If a two leg sling attachment is used to lift a long load of flexible material, the load may: -
ANSWER Buckle in the middle
The single greatest cause for fatalities in crane accidents is: - ANSWER Electrocution
What potential hazard is associated with lifting/moving a load secured with hand chain
hoist/lever hoist? - ANSWER Unsecured load and loose chains
One of the steps in a rigging planning session is to determine the stability of the load based
upon the rigging attachment points associated with its center of gravity. Why is this an im-
portant planning step? - ANSWER You know what the load will do in terms of movement
when it is picked up
Four essential elements in a rigging pre-job inspection:
1. Reference manufacturer information including the weight, plant requirements and safety
procedures.
1
, 2. Examine the load for structural stability, center of gravity, and attachment points.
3. List, collect, and inspect the equipment and material needed.
4. ? - ANSWER Identify the load path
If a 1" pipe weighs 1.6 lbs per foot, then a bundle of ten 1" pipes 20 ft long weighs: - AN-
SWER 320 lbs
If the center of gravity shifts during the lifting of an equally balanced (2) pick load, the pick
point nearest the cg will: - ANSWER Increase in load
If a 1" steel plate weighs 40 lbs per square foot, then a 1" x 24" x 3' steel plate weighs: - AN-
SWER 240 lbs
Calculate the weight of an open box steel box that is made of 1" plate measuring 5' long by
4' wide by 3' high that is filled with sand. - ANSWER 10,160 lbs
Calculate to the nearest pound the weight of a steel tank that is made up of 1/2" plate meas-
uring 4' long by 4' wide by 2' high that contains 50 gallons of diesel fuel. - ANSWER 1630
lbs
Which of the following is unacceptable for determining load weight? - ANSWER Lift load
and determine stress/strain on slings
Where should the CG of a load be located during a lift? - ANSWER Below the attachment
points
Calculate the weight to the nearest pound the weight of a steel tank that is made of 1/2"
plate measuring 4' long by 4' wide by 2' tall that contains 75 gallons of diesel fuel. - AN-
SWER 1805 lbs
2