Answers| 2026 Updated
What are the four different types of crane signals?
~~~ Hand
Voice
Audible
New
The shaded area on a load chart indicates ?
~~~ A structural chart
The minimum distance to a power line of unknown voltage is ?
~~~ 50'
When hoisting personnel and have known voltage, can you use Table A and get
closer than 20'?
~~~ Never!
What is the minimum tale swing clearance requirement
~~~ 2'
What kind of rigger is required for A/D?
~~~ Qualified Rigger
,Signal training is now required in the construction industry, True or False?
~~~ True
What is the weight of the object being lifted called?
~~~ Net Load
Why are the edges of a man basket smooth?
~~~ To protect against injury
Man basket doors must swing which way?
~~~ Must swing inwards only
Name a few things to inspect for with synthetic slings
~~~ Missing tags, acid burns, broken stitches, melting, snags, tears, cuts,
discoloration
What should never be done while inspecting a wire rope?
~~~ Open it to expose the core
A few things to be checked for in a wire rope inspection are
~~~ Corrosion, crushed strands, bird caging, high stranding, core protrusion,
damaged end fittings, heat damage from any source
If the horizontal sling angle decreases, the rated capacity
, ~~~ Decreases
How much does concrete weigh per cubic foot?
~~~ 150 lbs.
When making a lift in excess of 75% of rated capacity, this would be considered a ?
~~~ Critical lift
All lifting devices are load tested to how much?
~~~ 125%
How many people signal the cranes on a 2 crane pick?
~~~ 1
On a multi crane pick, each crane should be loaded to no more than what
percentage of its rated capacity?
~~~ 75%
The highest cause of fatalities in crane accidents is ?
~~~ Electrocution
What is a C rated fire extinguisher used for?
~~~ Electrical fires, anything to do with CURRENT
, The weight of a stationary load is called ?
~~~ Static load
What will a properly configured LMI indicate?
~~~ Potential Overload
New signals must be ?
~~~ Equally effective
The minimum distance to pass below power lines with no load and the crane in its
transport configuration is ...?
~~~ 4'
A crane operator must be certified for the and of the crane they will
operate
~~~ Type and capacity
What is the horizontal distance from the center of rotation to the center of the
suspended load called?
~~~ Load radius
A jib is primarily used for ?
~~~ Height