Podcast
Questions and Answers
When rotation of the load may be hazardous, what must the operator ensure?
When rotation of the load may be hazardous, what must the operator ensure?
ensure a tag line is used
Which of the following could be the most dangerous when working near a newly constructed building?
Which of the following could be the most dangerous when working near a newly constructed building?
- Effective signage
- Stable foundations
- Un-compacted soil covering underground utilities (correct)
- Clear site markings
The main reason for using timber blocking under the crane's outriggers is to?
The main reason for using timber blocking under the crane's outriggers is to?
decrease the applied ground pressure
Who is responsible for conducting an inspection during each shift?
Who is responsible for conducting an inspection during each shift?
What should you use to protect slings from a sharp edge?
What should you use to protect slings from a sharp edge?
Considering the wire rope on a crane, which of the following is prohibited by OSHA?
Considering the wire rope on a crane, which of the following is prohibited by OSHA?
A crane operator is required to have a physical every?
A crane operator is required to have a physical every?
To provide better protection between the crane and any obstacle, barriers must be erected in what part of the crane's work area?
To provide better protection between the crane and any obstacle, barriers must be erected in what part of the crane's work area?
An example of duty cycle operations would be?
An example of duty cycle operations would be?
The term that defines the load plus all rigging components is?
The term that defines the load plus all rigging components is?
When a heavy load is lifted, what is the result?
When a heavy load is lifted, what is the result?
What site conditions must an operator be concerned about prior to setting up a crane?
What site conditions must an operator be concerned about prior to setting up a crane?
Which of the following states the requirements for hooks used to hoist personnel on a crane supported personnel platform?
Which of the following states the requirements for hooks used to hoist personnel on a crane supported personnel platform?
A load applied at an angle to the vertical plane of the boom is called?
A load applied at an angle to the vertical plane of the boom is called?
A mobile crane's rate capacity, as listed in the load chart, is either based on either structural limits or?
A mobile crane's rate capacity, as listed in the load chart, is either based on either structural limits or?
When a measured radius falls between values listed in a load chart, what should you do?
When a measured radius falls between values listed in a load chart, what should you do?
A crane's net capacity is equal to?
A crane's net capacity is equal to?
The superstructure of a crane is?
The superstructure of a crane is?
When blocking is used under the floats/pads to support the crane, the blocking/cribbing must be?
When blocking is used under the floats/pads to support the crane, the blocking/cribbing must be?
If the operator must leave the crane when in contact with energized lines, they should?
If the operator must leave the crane when in contact with energized lines, they should?
What is a part of the crane inspection?
What is a part of the crane inspection?
How often is a competent person required to visually inspect the running rope on a crane?
How often is a competent person required to visually inspect the running rope on a crane?
Cranes with a suspended load generate the highest ground pressure when working over the?
Cranes with a suspended load generate the highest ground pressure when working over the?
An auxiliary boom head is intended to be used with?
An auxiliary boom head is intended to be used with?
When calculating net capacities, in most cases, a stowed jim is treated as?
When calculating net capacities, in most cases, a stowed jim is treated as?
Excessive side loading of the boom could be caused by?
Excessive side loading of the boom could be caused by?
Which is the most important factor about site access?
Which is the most important factor about site access?
Power lines below 350 kV, what is the minimum clearance distance required?
Power lines below 350 kV, what is the minimum clearance distance required?
As rope spools onto the hoist drum of a crane and the layers increase, available line pull will?
As rope spools onto the hoist drum of a crane and the layers increase, available line pull will?
If the capacity of a synthetic sling is not legible on the sling, the user should?
If the capacity of a synthetic sling is not legible on the sling, the user should?
For cranes using outriggers fully extended, tipping capacity is based on?
For cranes using outriggers fully extended, tipping capacity is based on?
The majority of ground crew deaths are related to?
The majority of ground crew deaths are related to?
The total weight of a load personnel platform and related rigging should not exceed what percent of the related capacity for the radius and configuration of a crane?
The total weight of a load personnel platform and related rigging should not exceed what percent of the related capacity for the radius and configuration of a crane?
A body harness system shall be attached to the personnel platform except which working condition?
A body harness system shall be attached to the personnel platform except which working condition?
On what principle is crane strength based?
On what principle is crane strength based?
The weight of load handling devices, such as load blocks, sling, ropes, shall be?
The weight of load handling devices, such as load blocks, sling, ropes, shall be?
Jib offset can be expressed as the jib angle to the?
Jib offset can be expressed as the jib angle to the?
When can capacity-altering modifications be made to a crane?
When can capacity-altering modifications be made to a crane?
Wire rope lubricant should not?
Wire rope lubricant should not?
How many broken wires are permitted at the end connection of standing wire rope?
How many broken wires are permitted at the end connection of standing wire rope?
When employees are engaged in hooking, unhooking, and guiding the load in the fall zone, what type of hook must be used?
When employees are engaged in hooking, unhooking, and guiding the load in the fall zone, what type of hook must be used?
The work area diagram is used to?
The work area diagram is used to?
Which of the following indicates core failure in rotation-resistant rope?
Which of the following indicates core failure in rotation-resistant rope?
One purpose of a load indicator is to?
One purpose of a load indicator is to?
Which of the following are not allowed within the fall zone?
Which of the following are not allowed within the fall zone?
What may be required when traveling a crane on a job site under or near power lines with no load?
What may be required when traveling a crane on a job site under or near power lines with no load?
All the cranes involved in a multiple crane lift shall?
All the cranes involved in a multiple crane lift shall?
All of the following can cause a two-blocking condition except?
All of the following can cause a two-blocking condition except?
Rapid hoist acceleration?
Rapid hoist acceleration?
Rigging equipment must be inspected?
Rigging equipment must be inspected?
Two audible signals made by a crane operator mean?
Two audible signals made by a crane operator mean?
When is the hoist line on the topside of the boom figured as part of the load?
When is the hoist line on the topside of the boom figured as part of the load?
A monthly inspection includes?
A monthly inspection includes?
Drum rotation indicators in a crane will tell the operator?
Drum rotation indicators in a crane will tell the operator?
If working near power lines and using a tagline, which type of rope is least conductive to electricity?
If working near power lines and using a tagline, which type of rope is least conductive to electricity?
The rated lifting capacities listed in the crane's load chart less all deductions is?
The rated lifting capacities listed in the crane's load chart less all deductions is?
How many random broken ropes are required for replacement?
How many random broken ropes are required for replacement?
The best way to determine the weight of the load is to?
The best way to determine the weight of the load is to?
The lifting capacities listed in the load chart assume that?
The lifting capacities listed in the load chart assume that?
The capacity of a vertical hitch is?
The capacity of a vertical hitch is?
The best way to ensure that timber mats work as a unit is to secure them with?
The best way to ensure that timber mats work as a unit is to secure them with?
What would be evident in the appearance of rotation-resistant rope if core failure is suspected?
What would be evident in the appearance of rotation-resistant rope if core failure is suspected?
Minimum clearance of energized lines at 40 kV?
Minimum clearance of energized lines at 40 kV?
A regular lay running rope should be replaced when it has?
A regular lay running rope should be replaced when it has?
A crane's net capacity is the?
A crane's net capacity is the?
What percent shall personnel platforms be tested at?
What percent shall personnel platforms be tested at?
The bold line used on a capacity chart, the capacities above the bold line are based on?
The bold line used on a capacity chart, the capacities above the bold line are based on?
Improper cribbing of outriggers includes?
Improper cribbing of outriggers includes?
What does a load indicator measure?
What does a load indicator measure?
What effect does loosely spaced cribbing have on outrigger floats/pads?
What effect does loosely spaced cribbing have on outrigger floats/pads?
Who on site is responsible for the assembly or disassembly of a crane?
Who on site is responsible for the assembly or disassembly of a crane?
Who is responsible for determining that the power lines are de-energized?
Who is responsible for determining that the power lines are de-energized?
Slings picked for assembly/disassembly of a crane should be?
Slings picked for assembly/disassembly of a crane should be?
Min sheave size required for lower load blocks using wire rope?
Min sheave size required for lower load blocks using wire rope?
When lifting over a corner, ground pressure generated by a crane can approach a weight that is?
When lifting over a corner, ground pressure generated by a crane can approach a weight that is?
When traveling with a suspended load, the boom should be?
When traveling with a suspended load, the boom should be?
Dynamic motion such as swing with a load can cause what?
Dynamic motion such as swing with a load can cause what?
Study Notes
Crane Operations Safety and Procedures
- Tag lines are essential to prevent hazardous load rotations during lifting operations.
- Un-compacted soil over underground utilities poses significant dangers near newly constructed buildings.
Crane Setup and Capacity
- Timber blocking under crane outriggers reduces ground pressure.
- A competent person is responsible for conducting inspections each shift to ensure safety.
- Split pipe sections protect slings from sharp edges when rigging loads.
- Splicing wire ropes on cranes is prohibited by OSHA regulations.
- Operators are required to undergo physical examinations every three years to maintain health standards.
Worksite Conditions
- Access roads should maintain a grade of less than 5%.
- Elevated work areas require barriers in accessible areas of the crane’s rotating superstructure.
- Cranes should have adequate compaction of approach roads for safe access.
Load Management
- Gross load includes the weight of the load and all rigging components.
- Side loading refers to loads applied at angles to the vertical boom.
- An auxiliary boom head is designed specifically for whip lines.
- The net capacity of a crane is determined by the manufacturer's load rating minus all deductions, including stowed jibs treated as deductions.
Inspections and Maintenance
- Regular visual inspections of running ropes are mandated to occur each shift by a competent person.
- Documented rope inspections are part of the overall crane inspection protocol.
- A monthly crane inspection must involve a comprehensive evaluation of all components.
Safety Protocols
- Workers must avoid making simultaneous contact with energized lines and the ground.
- Self-closing latch hooks are required when personnel are involved in load operations.
- Loose cribbing under floats/pads reduces strength and stability.
Lifting Operations
- The maximum weight limit for personnel platforms is set at 50% of the crane's rated capacity.
- Hooks with two audible signals indicate a command to move forward.
- A dedicated spotter may be required when traveling a crane under power lines.
Rigging and Sling Use
- Synthetic slings are preferred for assembling or disassembling cranes.
- The minimum clearance from energized lines is six feet at 40 kV.
- When using poly ropes, they are less conductive, providing an extra safety measure near electrical lines.
Operational Factors and Limitations
- Overloading conditions can be indicated by a load indicator, which warns operators.
- Excessive side loading can occur from dragging loads unexpectedly.
- Ground pressure increases significantly when lifting loads from a corner, potentially equal to crane weight and the load itself.
Educational Knowledge Requirements
- Knowledge of the minimum sheave size required for wire rope is critical; it must be at least 16 times the rope diameter.
- Understanding dynamic motions, such as swinging with a load, is essential as it can lead to increased load weight on the hook.
- Operators should recognize that the lifting capacity assumptions are based on ideal conditions outlined in the load chart.
Studying That Suits You
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Description
Test your knowledge on crane safety practices and precautions with this set of flashcards. Each card covers important aspects such as load rotation hazards, dangers near construction sites, and proper techniques for using timber blocking. Perfect for crane operators and safety personnel!
