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SAFETY
CRANES
HARDWARE
SLINGS
SIGNALING
100
It is the cause of 90% of all crane accidents
What is Human Error
100
Type of crane designed to travel easily across uneven ground
What is Rough terrain crane
100
Most commonly used type of shackle in construction
What is screw pin shackle
100
The minimum horizontal sling angle allowed according to OSHA.
What is 30 degrees
100
The signal that Will cause the load to move away fro the crane
What is Boom down or Extend boom
200
The term for the distance a crane must stay from power lines
What is minimum approach distance
200
Type of crane not designed to travel during operation
What is Tower crane
200
When a load is supported near the tip of a hook
What is Point loading
200
The most commonly used sling material used in construction
What is Wire rope.
200
The signal an operator must take from anyone on the job.
What is emergency stop.
300
When any part of the crane breches the minimum approach distance
What is encroachment
300
Type of crane with no outriggers
What is Crawler mounted
300
Point loading can reduce capacity of a hook up to what percent
What is 60%
300
WLL stands for
What is working load limit
300
The signal that will make the load move towards the crane
What is Boom up or Retract boom
400
ANSI stands for
What is American National Standards Institute
400
device which prevents damage from contact between the load block and boom tip.
What is anti two - blocking device
400
The percent of bends or twist are allowed on hardware according to ansi
What is 5%
400
It is the best sling configuration for long loose bundles of material.
What is Two double wrap choker hitches
400
The signal that will move the load away from the crane while keeping load at same height
What is Lower boom and raise the load.
500
A load that has a rapid change of movement
What is shock load
500
Measures the angle of the boom relative to horizontal
What is Boom angle indicator
500
Type of hardware designed only to lift straight up(vertical)
What is Non shouldered eye bolt
500
The three parts of a wire rope
What is Core/strand/wire.
500
The type of system an operators reception(hearing) must be made by with a radio
What is Hands free