QUESTIONS ANSD SOLUTIONS RATED A+
✔✔Who's job is it to warn the operator before he enters the prohibited zone? -
✔✔Signal Person
✔✔Who may qualify a signal person? - ✔✔A 3rd party evaluator or an employer
qualified evaluator.
✔✔A shackle with what percent wear is not ok to use? - ✔✔15%
✔✔Who can give an emergence signal stop? - ✔✔Anyone.
✔✔When lifting people you must first do what? - ✔✔Perform a test lift with the expected
lift weight.
✔✔Can you weld a hook? - ✔✔No, must be drop forged.
✔✔You can only lift over the front of a crane if ? - ✔✔It is acceptable per the
manufacturer.
✔✔As sling angle decreases the load applied to them ? - ✔✔Increases.
✔✔Throat opening, twist, cracks, and bowl wear are things you might look for when
inspecting? - ✔✔Hook
✔✔The formula for determining sling weights is ? - ✔✔Length divided by height X the
load divided by # of slings.
✔✔When attaching slings to a hook the greatest included angle before a reduction in
capacity requires a shackle is ? - ✔✔90%
✔✔A Dynamic load may be increased by... - ✔✔wind, snatching, sudden stop, fast
swing
✔✔Best hitch for lifting loose material? - ✔✔Double wrap basket.
✔✔Two types of lifting beams. - ✔✔Riggid, spreader
✔✔What is the minimum distance required when working near power lines? -
✔✔Depends on the voltage.
, ✔✔What might affect a crane working near power lines? - ✔✔Wind, Humidity, Boom
deflection
✔✔Does a single leg sling have the same capacity as a 2 leg sling at a 30 degree
angle. - ✔✔YES
✔✔The moment of balance is when the crane is? - ✔✔Equal to the load.
✔✔A load chart is only effective if ? - ✔✔Its for the crane its used with, the out riggers
are fully extended or partially according to chart, the crane is level
✔✔Hand Signal: Travel with both tracks - ✔✔both fists rotating
✔✔If lightning strikes near the job site you must... - ✔✔Instruct the operator to dog
everything until it passes.
✔✔The prohibited zone means... - ✔✔The area with high voltage that a crane may
enter by any function based upon voltage distance requirements.
✔✔What must be done before a lift? - ✔✔Pre-lift meeting, putting hazard tape around
the swing radius, test radios.
✔✔The point on an object around which its weight is equally distributed is its? -
✔✔Center of gravity.
✔✔Signal person whos sole responsiblity is to make sure the minimum distance to a
power line is not breached is called? - ✔✔Dedicated spotter.
✔✔When any part of the crane, load line or rigging breaches the minimum distance to
power lines its called? - ✔✔Encroachment.
✔✔The act of raising, lowering, and or moving a load in the air is ? - ✔✔Hoist
✔✔When connecting a shackle to a hook the hook should be positioned on the ? -
✔✔Pin of the shackle.
✔✔Extending the boom will do what to its capacity? - ✔✔Decrease the capacity.
✔✔A crane must be inspected when? - ✔✔Before each shift.
✔✔A crane must have at least how much fuel during operation? - ✔✔1/2 tank.