General Crane Certification Prep Questions And
Answers Solved 100% Correct.
is the horizontal distance from the center of rotation to
Load radius
the centerline of the vertical hoist line with the load freely
suspended.
leverage cranes are based on the principal of
certified load weight and add the best way to determine the weight of a load is to have a
the weight of all rigging
Ideal conditions lifting capacities in a load chart assumes the
net capacity gross capacity minus the deductions
static load capacities listed in a load chart are
operational quadrants a work area diagram identifies
tip height the range diagram should be used to determine boom
rigging components, hooks, blocks, and other lifting
gross load
equipment is considered part of the gross load.
The weight of load handling devices such as load blocks,
part of the load
ropes, and slings are considered
hoist lines hanging below the are considered a DEDUCTION when they are not in use
boom tip
hoist line on the top side of the never a deduction
boom is
effective weight of a stowed jib lower the actual weight
stowed boom extension is pinned at the base section
if the rating in a chart is greater than the line pull use the
calculate net capacity
permissible line pull of the wire rope and then make
deductions
nonstandard attachment is a deduction from the load ratings
longer radius when load weights are between values listed in the load chart use
when measured boom angle is between values listed in
next lower boom angle
the load chart use the listing rating for the
when RADIUS falls between values listed in the load chart
next longer radius
use the gross capacity for the
visual contact or post signal when extending outriggers from the cranes upper structure the
person operator should
reduce stability moving the tipping axis closer to the cranes center of gravity will
outriggers less than fully only time is when the load chart indicates that this is allowed
, extended
controlling entity is responsible for ensuring the site and supporting surface is
prepared adequately.
shift inspection includes group conditions
90 degree angle block under pads to achieve this so that its between the cylinder
and float or pad.
outriggers are in use float pads must be fastened to the jack when
off the supporting surface a carrier mounted crane that is set up on outriggers should have the
tires
under the outriggers floats to make sure the blocking is
blocking
sufficient to support the crane and the load, must be
greater than the float pad surface area.
decrease applied ground main reason for using tinder blocking under outrigger pads or
pressure crawlers is to
loosely spaced cribbing decreases the stability and strength
considering the support surface voids, tanks, loose fills, depressions, and the soil stability must be
for a crane sufficient
corner cranes with suspended loads generate the most (ground pressure)
Answers Solved 100% Correct.
is the horizontal distance from the center of rotation to
Load radius
the centerline of the vertical hoist line with the load freely
suspended.
leverage cranes are based on the principal of
certified load weight and add the best way to determine the weight of a load is to have a
the weight of all rigging
Ideal conditions lifting capacities in a load chart assumes the
net capacity gross capacity minus the deductions
static load capacities listed in a load chart are
operational quadrants a work area diagram identifies
tip height the range diagram should be used to determine boom
rigging components, hooks, blocks, and other lifting
gross load
equipment is considered part of the gross load.
The weight of load handling devices such as load blocks,
part of the load
ropes, and slings are considered
hoist lines hanging below the are considered a DEDUCTION when they are not in use
boom tip
hoist line on the top side of the never a deduction
boom is
effective weight of a stowed jib lower the actual weight
stowed boom extension is pinned at the base section
if the rating in a chart is greater than the line pull use the
calculate net capacity
permissible line pull of the wire rope and then make
deductions
nonstandard attachment is a deduction from the load ratings
longer radius when load weights are between values listed in the load chart use
when measured boom angle is between values listed in
next lower boom angle
the load chart use the listing rating for the
when RADIUS falls between values listed in the load chart
next longer radius
use the gross capacity for the
visual contact or post signal when extending outriggers from the cranes upper structure the
person operator should
reduce stability moving the tipping axis closer to the cranes center of gravity will
outriggers less than fully only time is when the load chart indicates that this is allowed
, extended
controlling entity is responsible for ensuring the site and supporting surface is
prepared adequately.
shift inspection includes group conditions
90 degree angle block under pads to achieve this so that its between the cylinder
and float or pad.
outriggers are in use float pads must be fastened to the jack when
off the supporting surface a carrier mounted crane that is set up on outriggers should have the
tires
under the outriggers floats to make sure the blocking is
blocking
sufficient to support the crane and the load, must be
greater than the float pad surface area.
decrease applied ground main reason for using tinder blocking under outrigger pads or
pressure crawlers is to
loosely spaced cribbing decreases the stability and strength
considering the support surface voids, tanks, loose fills, depressions, and the soil stability must be
for a crane sufficient
corner cranes with suspended loads generate the most (ground pressure)
