Mobile Crane Swing Cab Specialty Practice Test

These questions are part of the practice quiz. Start practicing

• The first element of voice signals given to a crane operator prior to the lift is
• If the swing radius area around the crane is not kept clear, what risk increases?
• How should you handle loads that require disassembly or complex rigging?
• Which of the following is a unique hazard when operating a swing cab that rotates relative to the chassis?
• What is the maximum allowable twist in a mobile crane load block hook?
• If a safety device fails during pre-operation checks, what should you do?
• When lifting with two cranes on one load, the recommended combined loading is closest to which percentage of rated capacity?
• Wind conditions generally restrict crane operation on many mobile cranes. What is the correct action when wind exceeds safe limits?
• The throat opening of a load block hook must not exceed what percentage of its original size?
• Which factor influences cab alignment and swing-path clearance during operation?
• Which factors should be evaluated to determine whether ground conditions are suitable for crane operations?
• Which factors influence rigging selection for a single-part lift to maximize capacity and minimize sling angle?
• Who must determine maximum speed for a mobile crane to travel with a suspended load?
• Which grade chain should be used for hoisting slings?
• On a mobile crane, the term 'parts of line' refers to which item listed below?
• What is the first element of voice signals given to a crane operator prior to the lift?
• What best characterizes a 'critical lift' that requires additional rigging and an observer?
• During swing cab operations, what is the recommended action if weather changes and becomes unsafe?
• Which boom configuration can cause the most hazardous boom side-loading condition?
• When should a tagline be used, during the hoisting of material?
• When a telescopic boom extension is offset from the main boom, the crane's capacity normally will be:
• Backward stability of a mobile crane is tested in which configuration?
• What is the main purpose of the capacity display during swing cab operations?
• Under what conditions are mats or cribbing under outriggers mandatory, and how should they be selected?
• Which statement best defines a level work surface for crane setup?
• What is the role of a signalman and what standard signals are commonly used?
• What is the purpose of a daily safety meeting before lifts?
• What should be done if the swing cab is damaged or misaligned?
• When retracting the boom on a telescopic, mobile crane, the hook block and load will move in what direction?
• Why is 'stop-work authority' important for crane operators and crew?
• What is the recommended action if you observe wear on a crane hook?
• What item listed below can be removed from a carry deck mobile crane, and continue to be operational?
• When proof testing a personnel platform to 125% of its rated capacity, how long must the platform be suspended?
• What should a comprehensive lift plan checklist include for swing cab operations?
• What action should be taken if any rigging equipment shows wear during a daily check?
• How should a signal person respond if they cannot be seen or heard by the operator during a lift?
• Which combination of twist and throat opening limits is correct for a load block hook?
• According to OSHA when is it safe to hoist loads with a mobile crane near energized power lines?
• Where should crane operators and workers stand to avoid injury from swinging loads?
• Increasing the distance from the crane's center of gravity to the tipping axis will have what effect on stability?
• Mobile truck cranes typically have higher lifting capacities toward the rear.
• Which statement about the first element of voice signals is true?
• What is the primary function of a spotter during swing cab lifts, and when should they be used?
• Why is it important to verify safety devices during pre-operation inspection?
• Which factor determines whether blocking under outriggers must be used?
• Which item is NOT listed as a no-lift condition?
• When is it appropriate to use walking or travel speed increase with load?
• Which items are included in a comprehensive lift path survey?
• Who is responsible for determining safe travel speed when a mobile crane carries a suspended load?
• If a jib offset is reduced while the boom angle is fixed, the load radius will:
• Who should perform a rigging inspection prior to lifting?
• What is the general wind-speed guideline for mobile crane operation, and what action is required if wind approaches the crane's rated limit?
• What is a key consideration unique to operating a swing cab during lifts compared to a fixed-cab crane?
• When should anti-two block be used during a lift?
• What are common indicators of an overloaded outrigger, and how should you respond?
• To read a load chart for a given boom length and radius, what steps are taken, and how are deratings applied?
• Which statement accurately describes the operational implications of swing cab versus non-swing cab cranes?
• What is the most effective approach when multiple loads are involved in close proximity to ensure crew safety?
• Describe the proper sequence for securing a completed lift and preparing for crane movement.
• Which regulation governs the lifting of personnel with a mobile crane in construction?
• Which action best aligns with safe operation when traveling a rough terrain mobile crane with a suspended load?
• During travel with a suspended load on many cranes, what is the recommended load position?
• What is the primary reason for lifting off a boom extension mounted on a mobile telescopic boom crane?
• What is the recommended action if a weather alert indicates lightning near the job site?
• Under what circumstances is a two-person lift or additional signalers recommended, and how should it be implemented?
• What is the role of guards and signage in pinch point mitigation?
• Why is a daily inspection of rigging equipment essential?
• What is the purpose and proper use of tag lines during crane lifts?
• What is required in ballast installation for a mobile crane with swing cab?
• Increasing the number of wire rope layers on a drum generally causes the allowable line pull to
• When a mobile crane's telescopic boom sections are required to be extended equally and they are not, the effect could be which of the following?
• What is the purpose of cribbing or mats under outriggers on soft ground?
• Which items should be checked on hydraulic systems before operation?
• What considerations are required for lifting operations on barges or floating platforms with a swing cab crane?
• Which action helps ensure safe guidance and clearance during a swing cab lift when lines of sight are compromised?
• What are the key elements of a swing cab hazard assessment?
• What person has the responsibility for determining the correct weight of a load?
• Blocking or mats under the outrigger pads/float shall be:
• Why is capacity derating necessary when a jib is installed on a crane?
• What are potential consequences of operating with a damaged outrigger or on an uneven ground beyond the manufacturer’s limits?
• When a mobile crane's jib is offset at 15° versus its original 30° offset while the boom angle remains unchanged, the load radius would be:
• Identify the major components within a swing cab's control system that an operator uses during lifts.
• Which statement best describes how to handle a defective crane or rigging component found during a lift?
• What is the purpose of a landing zone on a floating platform during a lifting operation?
• If wear is detected on the hoist rope during routine inspection, what is the required action?
• What is the purpose of a tag line during lifting?
• Which items are essential in a lift path survey to ensure crew safety?
• Before extending outriggers on a rough terrain crane, you should:
• What is the purpose of a daily start-up audit on the crane?
• How should you document and report crane inspections and maintenance?
• When traveling a rough terrain mobile crane with a suspended load, which is the most important consideration?
• Explain how extending the jib affects crane capacity and what must be checked before a jib lift?
• What is the purpose of limit switches and interlocks on a swing cab crane?
• Rough terrain mobile crane capacities are generally greater over which direction?
• What are best practices for booms angle and lifting with a swing cab to minimize sway?
• When lifting with two cranes attached to the same load, what percentage of the cranes' rated capacity must be used?
• What steps should be taken to manage overhead hazards and keep pedestrians away in a busy work zone?
• A crane loses stability when its leverage on the load is:
• What is the design factor required when using non-rotating wire rope slings and lifting personnel in a platform suspended from a mobile crane?
• The instability threshold occurs when the crane's leverage on the load equals the load's leverage on the crane; this corresponds to what percentage of the load's leverage on the crane?
• Explain how boom deflection affects the perceived load path and why it matters in lift planning.
• Which inspection is essential for the load block to prevent failure?
• When load radius is between radii values, the operator must use the longer radius.
• What is an anti-two block device and why is it critical?
• Why is a formal lift plan important, and what should it include?
• How does the effective weight of a stowed extension relate to the actual weight of the extension?
• What is the purpose of a wind speed or weather check before a lift?
• Which grade alloy steel chain should be used for hoisting slings?
• What is the role of a spotter during crane operations?
• A crane is at the point of instability when the cranes leverage on the load equals:
• The rooster sheave is primarily used to separate which lines?
• What constitutes overhead obstacles that must be checked during planning?
• When a rough-terrain crane is working on tires, backward tipping is most likely to occur when lifting which configuration?
• What is a common cause of crane instability during lift near edges and how do you prevent it?
• Before signaling a crane to move after a lift, what preparation is essential?
• During a daily pre-operation inspection of a swing cab mobile crane, which item is required to be checked?
• When operating a swing cab crane, which statement is true about cab alignment with a load?
• Which planning measures help ensure a safe load path and prevent collisions with obstacles?
• What is the recommended practice for using taglines during lifts?
• What should be included in the lift path of a swing cab operation?
• Which statement is true for lifting a personnel platform with a telescopic crane?
• The term 'parts of line' refers to the number of lines running through which components?
• During a lift with outriggers deployed, where is the maximum ground-bearing pressure experienced?
• What steps should you take if a lift plan changes mid-operation?
• What is the consequence of not performing daily rigging inspections?
• Which sequence best represents the safe steps to position a suspended load for ground placement and securement?
• Which hazards must be controlled on a lift with a swing cab?
• Which grade of alloy steel chain is specified for hoisting slings?
• Personnel platforms suspended on the hook of a mobile crane must not exceed what percentage of the crane's capacity at any given radius?
• If boom deflection makes the load appear in a different position than it is, what action should you take?
• A swing circle boundary defines what area around a swinging load?
• What routine shutdown steps should be followed at the end of a shift for a swing cab mobile crane?
• For a fixed load radius, what effect does reducing the jib offset have on crane capacity?
• What is the proper action if you discover worn rigging gear during inspection?
• Which statement best describes the content of a formal lift plan?
• Which step is part of proper outriggers setup on uneven or soft ground to ensure crane stability?
• If working near power lines and using a tag line, which type of rope is least conductive to electricity?
• What is the design factor for Grade 80 chain slings?
• When using a jib, what should you consult to determine the safe lifting configuration for the chosen jib length and angle?
• In a scenario where wind increases suddenly, what is the immediate action you should take?
• When traveling a rear engine mounted rough terrain mobile crane with a suspended load, where should the load be positioned?
• What is a 'critical lift' and what planning is required?
• Which weather information should be considered when planning a lift?
• According to OSHA 1926.1431, at what wind speed must a qualified person be consulted?
• What is a required daily inspection item for the crane’s electrical safety devices?
• Which mobile crane boom configuration can cause the most hazardous side-loading condition?
• Which device is not required on a modern telescopic boom mobile crane?
• How does a swing cab differ from a traditional fixed cab in terms of visibility and control?
• What is the purpose of using taglines during rigging?
• Why is it important to maintain crane inspection logs per policy?
• Which of the following best identifies pinch points in the swing cab area and how to mitigate them?
• What is the purpose of a pre-operational inspection on a mobile crane with a swing cab?
• How should a swing cab operator handle a load that begins to swing unexpectedly?
• How do wind gusts affect swing loads and how should you respond?
• Which instruments are typically included in a swing cab's control system to monitor safe operation?
• Which statement best describes why outriggers must be deployed on firm ground?
• When lifting loads on tires, mobile cranes are rated at what percentage of tipping?
• How do you read a load chart for a mobile crane with a swing cab?
• In the event of a near-miss involving a swinging load, what immediate steps should be taken?
• Who bears the responsibility for confirming a load's correct weight before a lift?
• How do you calculate the lifting radius on a swing cab crane?
• During swing cab operations, if the load path is obstructed or visibility is compromised, what action should be taken?
• Why is ballast used on floating platforms during crane operations?
• What is the primary purpose for a rooster sheave or auxiliary boom point sheave?
• What is the proper response if you detect a hydraulic leak during a pre-use inspection?
• Why does offsetting the telescopic boom extension reduce crane capacity?
• What action should you take if load hooks jam or do not unload properly?
• If wind gusts create an unsafe load path, what is the recommended action?
• What is the purpose of maintaining maintenance records for a crane, and what items should be included?
• When the number of layers of wire rope on a drum increases:
• How should you store and maintain rigging gear to extend its life?
• For Grade 80 chain slings, the design factor value is?
• When working near power lines, what minimum clearance should be maintained unless a higher requirement is specified by policy?
• Why is backward stability testing performed with the basic boom at maximum angle with no load?
• What are common signs of wear in a crane hook that require replacement?
• A telescopic mobile crane is equipped with an anti-to block lock-out device. When the device is activated, which functions will be disabled?
• What actions should be taken if a crane or rigging component is tagged out or found defective?
• On a carry deck mobile crane, which component can be removed and the crane remains operable?
• Backward stability of a mobile crane is tested in which configuration?
• What is the purpose of an anti-two-block device, and when must it be used?
• For lifts using two cranes on one load, what fraction of each crane's rated capacity is considered safe for planning?
• What is the recommended practice when using taglines regarding line tension and safety of personnel?
• When planning a lift that involves multiple loads in close proximity, which coordination steps are essential?
• Who must determine the maximum speed for a mobile crane to travel with a suspended load?
• Which statement accurately describes the limits for throat opening and twist in load block hooks?
• In the erected position, the fly's effective weight is greater than the weight in the stowed position.
• When a lift plan changes, who must be informed of the changes?
• On mobile truck cranes operating with outriggers retracted, the least stable position is when the boom is directly over the:
• What should be included in a rigging inspection prior to lifting and who should perform it?
• Define rated capacity and explain how it differs from the actual weight being lifted.
• What should be included in a lift path survey?
• What is the recommended action when a load begins to swing and there are nearby personnel?
• If a signal is unclear during a lift, what is the correct course of action?
• When lifting off the main boom, how does the fly's effective weight compare between the erected position and the stowed position?
• Why must the crane be kept level during operation?
• What is the operator's responsibility in a near-miss incident?
• Which crane hand signals should be used to stop a lift or lower the load when visibility is obstructed?
• How does radius interact with boom length in determining crane capacity, and how should you apply this on site?
• On mobile cranes, the boom angle indicator indicates what to the operator?
• What is the role of the operator’s manual during swing cab operations and how should it be used on site?
• Which of the following describes a typical sign that rigging needs replacement?
• Backward stability on a rough terrain mobile crane could be a problem when configured in which position?
• What is the minimum clearance from overhead power lines that a crane should maintain, and what practices help ensure compliance?
• What is the recommended practice for inspecting the hoist rope or chain for wear?
• Mobile truck crane capacities are generally greater over the?
• What is the critical clearance rule for swinging loads on a typical job site?
• How should complex lifts with potential visibility issues be managed in terms signals and communication?
• What is the proper procedure before traveling with a load?
• What does a Load Moment Indicator (LMI) provide during swing cab operations?
• Which device must be installed on a mobile telescopic crane to lift a personnel platform?
• Using a telescopic, mobile crane and lifting off of the jib with the main boom, partially extended, you should use _____________ to determine gross capacity.
• Which configuration creates the most hazardous side-loading condition?
• What is meant by the crane's swing circle no-go zone and how is it controlled on a job site?
• What should you do if a power interruption occurs during a lift?
• Which term describes the dangerous lateral loading that can occur from crane geometry during lifting operations?
• How should you verify rigging before lifting a load?
• What qualifies someone as a 'competent person' for crane inspections and what responsibilities do they have?
• Why is performing a Job Safety Analysis (JSA) or pre-lift planning essential before crane lifts, and what should it cover?
• What steps should be taken when lifting on a slope or uneven ground with a swing cab crane?
• If ground conditions are unsuitable, what steps should be taken?
• What is the function of a load block and why must it be inspected?
• Mobile crane should be level to within what percent of grade?
• Which statement is true about Grade 80 chain slings?
• Why is hook and rigging integrity critical, and what signs indicate replacement is necessary?
• The maximum twist allowed on a mobile crane load block hook is which of the following?
• How does proper rigging prevent load slip or shift?
• How should you plan and execute a multi-lift operation with the same crane to avoid overloading and interference?
• Which device is not required on telescopic boom mobile cranes manufactured today?
• Which of the following is required to be on a mobile telescopic boom crane in order to lift a personnel platform?
• A telescopic boom mobile crane is going to lift a personnel platform, what is required to be operational?
• What is the role of ballast when setting up a mobile crane with a swing cab?
• If not listed in the load/capacity, chart or notes for a telescopic boom crane, and you are in between boom lengths, you should:
• The throat opening of a load block hook must not exceed what percentage of its original size?
• What is the purpose of lockout/tagout procedures on cranes, and how is it applied to components needing repair?
• Which configuration is most hazardous for side-loading conditions?
• What should be checked for wire rope and hooks during daily inspection?
• Before lifting, what should you verify about the load's balance?
• What controls manage a load swung over people or busy roads, and what safety measures should be in place?
• When operating a rough terrain crane and extending the outrigger beams from the upper cab, you should?
• What is the purpose of wheel chocks when setting up outriggers on uneven ground?