Rigging Practices Course Questions and
Answers 100% Pass
A load chart range diagram can best be used to help identify: ✔✔net capacity
for mobile crane working at maximum radius, exceeding what percentage of the cranes capacity
requires the radius to be verified? ✔✔80%
the minimum depth of thread engagement for a 1/2 in eyebolt into steel object is? ✔✔3/4 in
when tying knots in synthetic rope lashing, the rated load is increased by 50% ? ✔✔false
the size of shackle that can be used in the eye of a wire rope sling must be ________ the wire
rope size? ✔✔equal to or greater than
a shackle must be marked with the rated load, re-inspected due date, and the date manufacture?
✔✔false
, when working near energized power lines where the crane or load could cross the absolute limit
of approach, what additional requirements must the crane team follow? ✔✔designated spotter
must be stationed to watch clearances
the load weight of a personnel lift must not exceed _____ of the hoists rated capacity for the
working radius ? ✔✔(50%)
a manufacturer's certificate of proof test may satisfy the initial test requirements for rigging
equipment? ✔✔false
which of the following operator actions will most likely cause a reduction in the capacity of a
mobile crane? ✔✔booming down
an angular pull of 45 degrees is allowed on non shouldered type eye bolts? ✔✔false
two slings creating a 60 degree sling angle are used to lift a 4,000 pound item. the appropriate
rated load for each sling is 2,000 pounds. ✔✔false
when are loads allowed to be moved over personnel? ✔✔never
Answers 100% Pass
A load chart range diagram can best be used to help identify: ✔✔net capacity
for mobile crane working at maximum radius, exceeding what percentage of the cranes capacity
requires the radius to be verified? ✔✔80%
the minimum depth of thread engagement for a 1/2 in eyebolt into steel object is? ✔✔3/4 in
when tying knots in synthetic rope lashing, the rated load is increased by 50% ? ✔✔false
the size of shackle that can be used in the eye of a wire rope sling must be ________ the wire
rope size? ✔✔equal to or greater than
a shackle must be marked with the rated load, re-inspected due date, and the date manufacture?
✔✔false
, when working near energized power lines where the crane or load could cross the absolute limit
of approach, what additional requirements must the crane team follow? ✔✔designated spotter
must be stationed to watch clearances
the load weight of a personnel lift must not exceed _____ of the hoists rated capacity for the
working radius ? ✔✔(50%)
a manufacturer's certificate of proof test may satisfy the initial test requirements for rigging
equipment? ✔✔false
which of the following operator actions will most likely cause a reduction in the capacity of a
mobile crane? ✔✔booming down
an angular pull of 45 degrees is allowed on non shouldered type eye bolts? ✔✔false
two slings creating a 60 degree sling angle are used to lift a 4,000 pound item. the appropriate
rated load for each sling is 2,000 pounds. ✔✔false
when are loads allowed to be moved over personnel? ✔✔never
