VERSION 2026-2027 QUESTIONS AND
100% VERIFIED ANSWERS
1. In an emergency situation, what is the rigger's FIRST priority? - Answer:--
To prevent injury or loss of life
2. What is the most important reason rigging hardware should NOT be
modified? - Answer:--It could negatively affect its capacity
3. The point of any object's weight can be assumed to be concentrated at: -
Answer:--Center of gravity
4. What is required if there is a deviation in the lift plan? - Answer:--A new lift
plan
5. On level ground using skids and rollers, what percent of the weight of the
load should yield the required line pull as a general rule of thumb? -
Answer:--5%
6. All of the following are results of unbalanced reeving of the hook block
EXCEPT: - Answer:--Wear on the hook
7. What is the minimum recommended sling angle for a safe lift? - Answer:--
45 degrees
8. When using a basket hitch, what happens to the lifting capacity of the sling
compared to a vertical hitch? - Answer:--It is doubled (theoretically) but
reduced by the angle factor
, 9. What is the effect of a 60-degree horizontal sling angle on the tension in
each leg of a two-leg sling? - Answer:--Each leg carries 1.15 times the
load share
10.What does the term "rated capacity" refer to in rigging? - Answer:--The
maximum load a component can safely handle under ideal conditions
11.When should a wire rope sling be removed from service? - Answer:--When
it shows 6 or more broken wires in one rope lay, or severe corrosion,
kinking, or birdcaging
12.What is the primary hazard of using a damaged shackle? - Answer:--Sudden
failure under load causing dropped load or injury
13.How often should rigging equipment be inspected by a competent person? -
Answer:--Before each use and at regular intervals per OSHA/ASME
standards
14.What is the purpose of a load chart on a crane? - Answer:--To show the
crane's lifting capacity based on boom angle, radius, and configuration
15.If a crane's load chart specifies a capacity of 10,000 lbs at a 20-foot radius
with outriggers fully extended, what happens if the outriggers are only
partially extended? - Answer:--Capacity is reduced (must use the chart
for that configuration)
16.What is the meaning of "SWL" stamped on rigging hardware? - Answer:--
Safe Working Load
17.What is the recommended method to determine the center of gravity of an
irregularly shaped object? - Answer:--Test lifting with a single point, or
use a load cell on multiple points, or calculate using balance points