AND CORRECT ANSWERS PLUS RATIONALES 2025.
1. What is the main purpose of a tagline on a load?
A. Increase the load capacity
B. Reduce wind resistance
C. Control the load’s rotation and position
D. Connect to the crane boom
Taglines help guide and control loads to prevent unwanted spinning or
swaying during lifting operations.
2. What should a rigger inspect before using a sling?
A. Only the lifting hooks
B. Only the sling tags
C. The entire length of the sling and its fittings
D. Only the load
A complete inspection ensures there are no cuts, abrasions, or defects that
could cause sling failure.
3. Which hand signal is used to indicate “Hoist”?
A. Thumb pointing down
B. Closed fist with thumb up
C. Arm extended with palm down
, D. Waving both hands
A closed fist with thumb up means to hoist the load up.
4. What should be done if a sling tag is missing or illegible?
A. Use the sling if it looks okay
B. Rewrite the tag
C. Remove the sling from service
D. Ask the crane operator to decide
Without a legible tag, the sling’s capacity and specs cannot be verified. It
must be removed from service.
5. Who has the authority to stop a lift operation if unsafe conditions exist?
A. Only the crane operator
B. Only the supervisor
C. Any crew member
D. Only the rigger
All personnel have the right and responsibility to stop unsafe operations.
6. What is the minimum recommended number of clips for a wire rope eye
with 1/2 inch diameter?
A. 2
B. 3
C. 4
D. 1
Wire rope clip charts specify 3 clips for a 1/2 inch wire rope to ensure a
secure connection.
,7. What does the term “center of gravity” refer to?
A. The lowest point of the load
B. The heaviest corner of the load
C. The lightest point of the load
D. The point where the load’s weight is evenly balanced
Lifting from the center of gravity ensures the load remains level and
stable.
8. How often must slings be inspected at a minimum?
A. Every five years
B. Once a year
C. Every month
D. Each day or prior to use
OSHA and NCCER standards require daily or pre-use inspections for rigging
gear.
9. What should be done when a wire rope shows birdcaging?
A. Lubricate it
B. Remove it from service
C. Cut off the damaged section and use the rest
D. Straighten it back out
Birdcaging indicates serious internal damage and loss of strength.
10.What is the purpose of a shackle’s cotter pin or bolt?
A. Add extra weight to the shackle
B. Prevent the pin from backing out during a lift
C. Make the shackle easier to remove
, D. Identify the manufacturer
The cotter pin or bolt secures the shackle pin in place under load.
11.Who is responsible for the rigging connection before a lift?
A. The crane operator
B. The supervisor
C. The designated rigger
D. The signal person
The rigger must ensure proper attachment and safety of all rigging
components.
12.Which factor affects sling angle stress?
A. Load color
B. Weather
C. Horizontal sling angle
D. Wire rope diameter
The smaller the horizontal angle, the greater the stress on the sling.
13.When should a synthetic web sling be removed from service?
A. Faded color
B. Acid or caustic burns
C. Dirty appearance
D. Label is intact
Chemical burns weaken synthetic fibers, making them unsafe.
14.When lifting, what should you avoid doing with the load?
A. Lifting it slowly
B. Dragging it on the ground