Basic Principles of Cranes Practice Test

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• Why is weather considered in a pre-lift plan?
• Which crane type tends to have the highest front-end capacities?
• How do some crawler cranes increase their stability?
• If the radius increases while the load remains the same, what happens to the crane's stability?
• What does anti-two-block protection do?
• What does a hard stop indicate during crane operation?
• What is the minimum stability for a crane on outriggers?
• Which practice is not part of safe load landing procedure?
• Which document demonstrates that personnel involved in a lift are qualified?
• What should you do if you encounter an electrical fault or power line during a lift?
• Which items are commonly checked in a pre-lift inspection?
• Why should hooks and ropes be protected from side loading?
• Most wheeled cranes (boom trucks, AT cranes, knuckle boom cranes) are strongest in which quadrant?
• Why is the difference between static load and dynamic load important in crane lifting?
• What phenomenon is common with an odd number of parts of line reeving?
• How does weather impact crane operations?
• What is the purpose of a pre-lift meeting?
• What 2 types of pile drivers are available to cranes?
• When is a lift considered 'critical' and requires additional controls?
• What is the purpose of a pre-lift toolbox talk?
• What is the purpose of outriggers and mats on soft ground?
• Which of the following correctly describes a method to determine the minimum blocking surface area under outriggers?
• What is the purpose of limit switches on cranes?
• What is the risk of miscommunication between the signalperson and operator during lifts?
• What minimum clearance practices apply to working near overhead power lines?
• How does wind affect crane operations and when should lifting be stopped?
• Why is side loading dangerous for cranes?
• Which of the following is a source of boom side loading?
• Which Category 2 operator aid is used specifically with luffing jibs?
• An out-of-level crane can cause radius changes during swing, affecting operation. Which aspect is most directly affected?
• How do you verify the load weight before lifting?
• Which mechanism is commonly used to prevent anti-two-blocking in a crane system?
• Which statement best describes a key difference between pendant/control console controls and remote radio controls?
• Which of the following is a common sign of wire rope damage?
• During a lift, what is the recommended way to communicate with the operator when using tag lines?
• Before a lift, which environment-related factor is typically assessed as part of the pre-lift checks?
• Which Category 2 operator aid is used with telescopic booms?
• What is the term for the point at which a lever or crane attempts to pivot on?
• Which Category 2 operator aid monitors the position of outriggers?
• What is a Load Moment Indicator (LMI) and why is it used?
• Which crane type is commonly recognized for being driven on highways due to multi-axle configurations?
• Distinguish a lift plan from a method statement in crane work.
• Exclusion zones around cranes are established to keep personnel away from which area?
• Many truck mounted cranes prohibit lifting in which quadrant unless an additional stabilizer is present?
• What is the minimum stability for a crane on rubber?
• What is this?
• Some cranes have load charts that allow the crane to lift a load and drive around while it is suspended. What are these cranes (or capability) called?
• What documentation is typically required to perform a crane lift on a job site?
• Many cranes require their _____ to be removed before driving or transporting them on the highway.
• What role do outriggers play in crane stability?
• Who should participate in the pre-lift meeting to ensure all personnel understand the plan?
• What is the purpose of cribbing in crane operations?
• What should be done if any lifting hardware shows signs of damage?
• Which option best describes a crane site setup standard?
• Which factor primarily determines the minimum stability values for different configurations?
• How should signals between the signalperson and operator be delivered?
• Which combination lists three common crane types used on construction sites?
• Crawler cranes that use a mat to increase stability need to have at least _____ feet of mat extending past the crawlers?
• From an open trench, what minimum distance should the closest contact point be?
• What does a Rated Capacity Indicator display and how does it assist crane operations?
• How can ground condition problems be mitigated during setup?
• What are 2 methods of determining the minimum surface area needed for blocking and cribbing under a crane's outriggers?
• These cranes have more than 2 axles, set up quickly and can be driven at highway speeds.
• How should outriggers be deployed and leveled?
• In a lifting scenario with outriggers on rubber, what is the minimum stability?
• In lift planning, why is weather information included?
• Where should the load's center of gravity be placed during lifting?
• Which lifting method uses slings and attachments to secure the load?
• Who should replace or repair lifting hardware that shows signs of damage?
• Who must agree on a critical lift plan before it can be signed?
• Which of the following is one of the seven required safety devices under 29 CFR 1926 Subpart CC?
• What is the typical role of a signalperson during lifts?
• The hook block swivel provides which benefit during lifting?
• How does radius affect crane capacity?
• Define interpolation.
• What is the primary purpose of a crane load chart?
• Which item should be included in a daily crane pre-operational inspection?
• Which item is not typically included in a lift plan for a critical lift?
• What is this device and its purpose?
• What is the purpose of a rated capacity indicator on some cranes?
• For a recently backfilled trench 12 feet deep, what is the minimum distance from the trench edge to the outrigger?
• How can incorrect load weight estimation lead to tipping?
• What caused the damage described as side loading with the hoist line jumping off the sheave?
• How should damaged hooks be handled?
• Who approves a lift plan?
• Which step best ensures rigging readiness before a lift?
• Which factor has the least direct impact on crane stability during a lift?
• How many parts of line are reeved in the pictured setup?
• What happens to the radius and rated capacity when the crane's boom is raised?
• (Lattice, Telescopic, Knuckle) _____ boom cranes are typically used for pile driving due to their strength and simplicity.
• How should a lift plan address obstacles in the path of the load?
• What is the function of the hoist limit switch?
• Which Category 2 operator aid helps determine hoist drum rotation when the operator cannot see the drum?
• What distinguishes free lifting from rigged lifting?
• Under 29 CFR 1926.751, any lift over what percentage of a crane's rated capacity is considered a critical lift?
• The point at which a crane's or load's weight is considered to be concentrated is called the:
• Which configuration has a minimum stability of 75%?
• In the event a load tag is not available, what is the recommended method to determine the load weight before lifting?
• Which component supports the forestay and backstay of luffing jibs and their associated reeving?
• Under what circumstance should blocking and cribbing be placed under a crane's outrigger beam?
• A jib that must be pinned in place and cannot be adjusted while under load is called a _____.
• Why is coordination essential in multiple-crane lifts?
• How can you verify the load weight before lifting?
• What elements are typically included in a pre-lift plan?
• What action should be taken when visibility is limited and there is risk of load swing?
• What should be done about a damaged crane hook?
• Why do sling angles matter in rigging?
• These cranes typically have the highest capacities over the front.
• Is the load block reeved correctly if it is balanced with no side loading?
• These cranes typically drive very slow (<30 mph) due to their gear ratios, short wheel base and lack of suspension.
• What is a hook block and what does it do?
• What should be included in the pre-lift discussion to ensure readiness?
• What term describes the area that must be kept clear during a crane lift?
• Why is a functional test of crane controls needed before first use?
• What elements should crane inspection records include?
• What should be checked against the crane's load chart before a lift?
• What is a safe load path and how is it established?
• What should be attached to the load to help guide positioning during lift?
• Which safety considerations apply when working near power lines?
• What is the role of the spotter?
• What does rated capacity mean?
• What is the minimum stability for a crane with rail clamps?
• What minimum clearance is commonly required from energized lines during lifting?
• Why is proper rigging hardware selection critical?
• What should be done if the load begins to swing uncontrollably?
• How should weather conditions be managed during lifting?
• What is a tag line and why is it used?
• How often should wire rope and hooks be inspected?
• What must be done if one of the seven required safety devices fails during a lift?
• Which item is NOT a typical site factor influencing crane setup?
• Which Category 2 operator aid provides a measure of lifted load weight?
• What is the purpose of a toolbox or pre-lift meeting?
• What is the function of a hook block swivel?
• What is the purpose of an out-of-service tag?
• These cranes have 4-wheel steering and are typically driven and operated from the same cab.
• Which condition would indicate outriggers are not properly prepared on soft ground?
• Why are tag lines used during lifts?
• Why is it important to maintain a clean crane operating area?
• Which factor is most directly addressed by outriggers in crane operation?
• Which of the following is a Category 2 operator aid?
• The distance from the hook to the turning center is primarily used in which context?
• What term describes a crane that can lift a load and move around with the load suspended?
• What is the name of the bin that automatically dumps its contents when raised?
• Compare static and dynamic loads in crane lifting.
• During a lift, which action is least likely to be performed by a spotter?
• What site factor influences proper crane setup?
• This type of crane requires the boom to swing independent of the controls.
• Why should operators never exceed the crane’s rated capacity?
• With a fixed boom length, what happens to the crane's capacity as the radius increases?
• Why is it important to properly level outriggers before lifting?
• Which two categories of devices are used for pile installation with cranes?
• How do ground conditions influence crane setup?
• Which crane type is noted for four-wheel steering and is driven from a single cab?
• In crane operations, which factor does NOT directly influence actual capacity?
• Which term describes a jib that can be adjusted during a lift?
• How does counterweight affect crane stability?
• What feature describes a crane that can climb transportation routes on wheels and has multiple axles for highway travel?
• If wind increases during a lift, what is the correct course of action?
• How should outriggers be positioned on soft ground?
• Which statement best defines a “critical lift” in crane operations?
• Why must cranes be perfectly level?
• What is the purpose of an exclusion zone around the crane?
• How does wind influence crane operations?
• If you notice frayed or damaged wire rope during a visual check, what should you do?
• If ground conditions are not suitable for lifting, what should be done?
• What is tail swing and why is it a hazard?
• How does rated load differ from the crane's capacity?
• On a crane's load chart, what do the numbers above the bold line indicate?
• What steps should be taken if a load starts to swing uncontrollably?
• Which items are included in a daily crane pre-operational inspection?
• Which factor most directly affects the decision to suspend a lift due to safety concerns?
• Why is proper cribbing or matting used under outriggers?
• What is the significance of the load chart on a crane?
• A jib that can be moved during a lift is called a _____.
• Which device is a Category 1 operator aid?
• Most cranes require them to be level to within what tolerance?
• Which statement accurately describes the load chart conventions?
• What minimum distance should the closest contact point be from a recently backfilled trench?
• What safety device is identified as the anti-two-block (A2B) device?
• Why is effective communication essential during lifts?
• Which crane design allows the control station to move with the boom?
• What happens to the radius and rated capacity when a crane's boom is lowered?
• What is the difference between working radius and hook height?
• How does acceleration of the hoist affect the load's effective weight?
• What is the purpose of a pre-lift inspection?
• How should maintenance logs be used to support safe crane operation?
• Identify the component that connects the boom to the upperworks of the crane.
• What is the purpose of tag lines and how should they be used?
• How do rated capacity and actual capacity differ in real operations?
• A competent person in crane operations is defined as someone with which combination?
• Which of the following is NOT correct regarding outriggers on soft ground?
• What is involved in a load test and what does it demonstrate?
• Which tool is used to regain control of a swinging load?
• Which of the following is a potential consequence of using incorrect rigging hardware?
• What steps should be taken at the end of a lift or shift?
• What defines a competent person in crane operations?
• Who approves a lift plan and what information does it contain?
• What should a lift plan do when obstacles are present in the load path?
• Why must loads be centered on the hook?
• Which statement about a load test is accurate?
• How do you determine the crane’s stable working radius for a lift?
• Which instrument is used to confirm the crane is level after deploying outriggers?
• What is the purpose of a jib?
• What is the proper action for a damaged hook before reuse?
• Which statement about side loading is correct?
• What considerations are involved in traveling with a crane?
• Who should direct and interpret crane signals during a lift?
• Which statement about out-of-service tags is NOT correct?
• The distance from the crane's hook to the center of rotation is commonly called what?
• For an open trench 8 feet deep, what is the minimum distance from the trench edge to the outrigger?
• Which device is a Category 1 operator aid for luffing jibs?
• Assist cranes are sometimes needed to support the weight of which crane component?
• What is a lift plan and what elements does it include?
• Once a critical lift plan has been agreed upon by all responsible jobsite personnel, crane operator and riggers, what must happen?
• Why is the Rated Capacity Indicator useful for crane safety?
• What should a signaler's hand signal checklist include?
• Which of the following is NOT a recommended safety measure when working near energized lines?
• Which boom type is typically used for pile driving due to its strength and simplicity?
• What is the minimum stability for a crawler crane?
• Which device is used to move loose material without digging?
• What does a Load Moment Indicator (LMI) do?
• What is the primary purpose of a crane load capacity chart?
• The minimum stability value of 75% applies to which crane type?
• Which statement best describes anti-two-block and how it is achieved?
• Why is damaged wire rope on a crane dangerous?
• What inspections are required for crane wire rope?
• On a crane's load chart, what do the numbers below the bold line indicate?
• If the ground under the outriggers collapses, which of the following describes the crane's condition?
• Wheeled truck cranes can usually climb grades up to ____% grade.
• How does boom length and radius affect crane capacity?
• Which technique involves using a plumb bob to verify that the crane is level?
• What are best practices for landing a load safely?
• For a load block reeved with eight parts of line, where does the rope terminate?
• What should you do after stopping a load and regaining control due to swing?
• Which method involves placing a level at two points on the slew gear perpendicular to each other to verify level?
• In a reeved block with an odd number of line parts, where does the rope terminate?
• What type of record verifies equipment has been inspected and is safe to use before lifting?
• What condition is described by eccentric reeving causing the boom to side load, twisting the boom and wearing rope?
• Which task is often the most difficult for a lattice boom crane?