Advanced Crane & Rigging Test
When should an approved lift plan be re-approved? - answerD. If there is any deviation
from the original lift plan.
Electrical hazards in the lift area and swing direction and degree are factors to consider
in preparing which portion of a lift plan? - answerD. Crane Placement
Capacities for crawler cranes that have outrigger extensions may not exceed ________.
- answerD. 85 perfect of tipping
When planning a lift involving two cranes, calculate the lowest net capacities that both
cranes will have during the lift. The next step is to ______. - answerA. Make sure that
the sum of the lowest rated net capacities of the cranes exceeds the load weight.
A lift plan should be discussed ______. - answerD. At a pre-lift meeting where all
personnel in the lift are present.
What is meant by the term "two blocking?" - answerB. The load block contacts the
boom point sheaves
Lifting 20,000 lbs with a 2-leg bridle sling at a 30° horizontal sling angle, what is the
force applied to each leg? - answer20,000 lbs.
In multiple crane lifts using an equalizer beam, the weight of the beam should be
considered: - answerPart of the load weight
What is required if there is deviation from the lift plan? - answerA new lift plan
On level ground using skids and rollers, what percent of the weigh of the load should
yield the required line pull as a general rule of thumb? - answer5%
All of the following are results of unbalanced reeving of the block except: - answerWear
on the hook
Before a spreader bar or beams can be used they MUST have been: - answerTested
and approved
When materials are being hoisted to an upper level, a tag line is used to: - answerHelp
control the load
Two cranes are lifting 100 tons. If crane A has 40% of the load, how much weight will
crane B have on its hook? - answer120,000 lbs
, To confirm the rated capacity of a specific sling, consult the manufacturer's: -
answerSling tag
OSHA regulations require hook replacement if the opening exceeds what percentage of
it's original throat opening? - answer15%
At what percentage of increase in length should a chain sling be removed from service?
- answer5%
The methodical process that attempts to identify hazards and devise plans to overcome
or eliminate hazards which may interfere with crane or rigging is called: - answerLift
plan
What provides additional control of a load being lifted? - answerTag lines
When travelling on a rubber tire mobile crane, how should the boom be positioned? -
answerIn line with the direction of travel.
Before performing pick and carry operations with any mobile crane, it is important to: -
answerRefer to the manufacturer's capacity chart.
According to ASME B30.5, a two crane lift is signaled by: - answerOne designated
person
What is the primary concern when working with a high boom angle? - answerBackward
stability
ON multiple crane lifts, the load on each crane should NOT exceed what percentage of
capacity? - answer75%
What are lifting lugs? - answerEyelets welded to steel plate for lifting.
The formula for determining stress on a snatch block performing a vertical lift is: line pull
x block factor = block load. What must be done to calculate the formula? -
answerMultiply the load weight by the coefficient of friction to determine line pull, and
then use the standard formula.
If both fists are placed in front of your body with your thumbs pointed outward, the crane
operator should: - answerExtend the boom sections.
What is the maximum percent of the rated capacity of a crane that can be used to lift
personnel? - answer50%
When does lightning present the greatest hazard to crane and regging personnel? -
answerWhen thunder and lightning are apparent.
When should an approved lift plan be re-approved? - answerD. If there is any deviation
from the original lift plan.
Electrical hazards in the lift area and swing direction and degree are factors to consider
in preparing which portion of a lift plan? - answerD. Crane Placement
Capacities for crawler cranes that have outrigger extensions may not exceed ________.
- answerD. 85 perfect of tipping
When planning a lift involving two cranes, calculate the lowest net capacities that both
cranes will have during the lift. The next step is to ______. - answerA. Make sure that
the sum of the lowest rated net capacities of the cranes exceeds the load weight.
A lift plan should be discussed ______. - answerD. At a pre-lift meeting where all
personnel in the lift are present.
What is meant by the term "two blocking?" - answerB. The load block contacts the
boom point sheaves
Lifting 20,000 lbs with a 2-leg bridle sling at a 30° horizontal sling angle, what is the
force applied to each leg? - answer20,000 lbs.
In multiple crane lifts using an equalizer beam, the weight of the beam should be
considered: - answerPart of the load weight
What is required if there is deviation from the lift plan? - answerA new lift plan
On level ground using skids and rollers, what percent of the weigh of the load should
yield the required line pull as a general rule of thumb? - answer5%
All of the following are results of unbalanced reeving of the block except: - answerWear
on the hook
Before a spreader bar or beams can be used they MUST have been: - answerTested
and approved
When materials are being hoisted to an upper level, a tag line is used to: - answerHelp
control the load
Two cranes are lifting 100 tons. If crane A has 40% of the load, how much weight will
crane B have on its hook? - answer120,000 lbs
, To confirm the rated capacity of a specific sling, consult the manufacturer's: -
answerSling tag
OSHA regulations require hook replacement if the opening exceeds what percentage of
it's original throat opening? - answer15%
At what percentage of increase in length should a chain sling be removed from service?
- answer5%
The methodical process that attempts to identify hazards and devise plans to overcome
or eliminate hazards which may interfere with crane or rigging is called: - answerLift
plan
What provides additional control of a load being lifted? - answerTag lines
When travelling on a rubber tire mobile crane, how should the boom be positioned? -
answerIn line with the direction of travel.
Before performing pick and carry operations with any mobile crane, it is important to: -
answerRefer to the manufacturer's capacity chart.
According to ASME B30.5, a two crane lift is signaled by: - answerOne designated
person
What is the primary concern when working with a high boom angle? - answerBackward
stability
ON multiple crane lifts, the load on each crane should NOT exceed what percentage of
capacity? - answer75%
What are lifting lugs? - answerEyelets welded to steel plate for lifting.
The formula for determining stress on a snatch block performing a vertical lift is: line pull
x block factor = block load. What must be done to calculate the formula? -
answerMultiply the load weight by the coefficient of friction to determine line pull, and
then use the standard formula.
If both fists are placed in front of your body with your thumbs pointed outward, the crane
operator should: - answerExtend the boom sections.
What is the maximum percent of the rated capacity of a crane that can be used to lift
personnel? - answer50%
When does lightning present the greatest hazard to crane and regging personnel? -
answerWhen thunder and lightning are apparent.
