EICA Mobile Crane & Digger Practice Test

These questions are part of the practice quiz. Start practicing

• Where is the jib located when in the stowed position?
• What is the primary reason for calculating an altitude correction factor?
• What is the maximum throat opening for crane hooks as a percentage of its original size?
• What effect does having more leverage than the crane have?
• What action should a crane operator take to improve safety during hoisting operations?
• What precaution should be taken when operating a crane with a long boom during windy conditions?
• How does the presence of sharp corners affect rigging safety?
• What is a critical factor to monitor when lifting personnel using cranes?
• What potential issue arises from a crane operating in high winds?
• What is the replacement criterion when using RRL 6x19 wire rope as a winch line?
• How should ground personnel react when a crane approaches power lines?
• Which condition is critical to check before setting up a mobile crane?
• What is the number one cause of death for ground personnel working with cranes?
• Most jib ratings are typically based on what factor?
• When using a screw pin shackle to attach 2 slings to a crane's hook, where should the pin be positioned?
• What must an operator do before making a near-capacity lift?
• What does MAD stand for in the context of electrical work?
• What is the most unstable allowable quadrant of operation for a truck crane?
• What should operators use to communicate effectively while working near energized equipment?
• How is the boom length of a crane measured?
• What happens when the number of layers of rope on a drum is increased?
• When the angle of a crane's boom is between two angles listed on the chart, which angle should be used?
• Why is it necessary for an operator to be qualified when working near power lines?
• According to ASME B30.5, what is the maximum allowable increase in the throat opening of a crane hook?
• Who receives the clearance when a line is cleared for work?
• What does the boom angle indicator indicate to the operator?
• What factor is typically considered for correcting MAD at different altitudes?
• What does the term "minimum approach distances" refer to?
• Is it permissible to temporarily bypass a crane's overload warning system?
• What is the standard rope used on most cranes?
• If the safe working load (SWL) of a crane's wire rope is 8,000 lb using one part, what is the SWL when using 4 parts?
• Which of the following is NOT a type of load a crane can handle?
• When multiple crews are working on a line cleared for work, what can any crew that requires a clearance do?
• If a qualified operator is working within 10 feet of energized lines, what is required of them?
• What type of blocking or cribbing is not recommended under the outrigger float?
• When inspecting crane wire ropes, how should broken wires be monitored?
• How many broken wires must be present in one strand of wire rope for it to be removed from service?
• When determining load capacities, what is a critical factor for crane operation?
• What is the maximum number of broken wires allowed in a 6x25 hoist line before replacement is needed?
• What does the ground bearing pressure depend on when using an outrigger pad?
• What is a concern when operating a short boom at a high angle on an R/T crane?
• To ensure safety, why is it important to adjust MAD based on altitude?
• Who is responsible for ensuring proper ground conditions when setting up a mobile crane according to OSHA?
• Which of the following is a crucial factor in crane setup near excavations?
• During crane operation, what governs the maximum load capacity when the radius is adjusted?
• What is the minimum clearance for a crane operating near an energized power line of 40 kV for a non-qualified electrical worker?
• What is the maximum number of broken wires permitted at a wire rope terminating fitting?
• What design factor is applied to rigging used for suspended personnel platform lifting?
• Which of the following is not a good location for crane setup?
• What does "Jib Offset" refer to in crane configurations?
• In pick and carry operations with an RT crane, where should the load be positioned?
• During pole setting near energized power lines, what are protective covers rated for line potential?
• What type of load is generally safe to lift with side loading?
• Who is responsible for giving hand signals to the crane operator?
• What would be the approximate MAD for a 15 kV system if you are at 2,942 feet?
• What is a requirement for a lockout device?
• Load chart ratings apply under which conditions?
• When using cable or nylon spreaders, what happens as the spreader angle decreases?
• What is the safety protocol for materials placed under overhead energized power lines?
• What type of items must a person working around energized power lines avoid wearing?
• What precaution should an operator take when operating a crane on uneven ground?
• When working near a cellar wall, the crane's outrigger pads or tracks should be placed how far back?
• What is the minimum size and type of fire extinguisher required by ASME for cranes?
• Why is it beneficial to use mats or cribbing under a crane?
• Which of the following is a critical consideration for lifting operations with synthetic slings?
• What is identified as an operational aid in the context of crane operations?
• What is the required design factor for running wire rope that is not rotation resistant?
• What is the primary consideration when selecting a sling for lifting?
• In the context of crane operations, which inspection is performed more frequently, frequent or periodic?
• If a crane is being used closer than 10' to an energized power line, who must the operator be?
• When a crane is operating around energized lines, what is required for employees on the ground regarding contact?
• Which of the following is not considered duty cycle work?
• What defines the radius in crane operation?
• What is net capacity in relation to a crane's load?
• What is the maximum percentage of the crane's capacity that a boom mounted personnel platform must not exceed?
• How can an operator determine the appropriate size or type of wire rope when replacing it on a crane?
• If a jib is erected but not being used, what should be deducted from the crane's load capacity?
• What OSHA regulation governs cranes in General Industry?
• When cranes are working on rubber, they are typically rated at what percentage of tipping?
• During a shift inspection, what must be done if there is water accumulation around the crane's outrigger?
• Which of the following is not a consequence of improper handling around power lines?
• What is wire rope lubricant NOT intended to do?
• What is the primary purpose of a rooster sheave or auxiliary boom point sheave?
• Which of the following statements about outrigger float positioning is correct?
• What is a consequence of improper lubrication of wire rope?
• Which of the following is crucial for the crane operator to ensure safety during operation?
• What OSHA regulation governs suspended personnel platforms?
• How frequently must wire rope on mobile cranes be inspected thoroughly and documented?
• When an operational aid stops working properly, what must the crane operator do?
• Clothing exposed to flames should not:
• According to OSHA, what is the minimum pitch diameter for boom hoisting sheaves?
• What is critical when lifting a load with more than one crane?
• How much clearance is typically required from any part of the crane and its load when working around power lines of more than 750kV?
• Why should only approved attachments or extra counterweights made by the manufacturer be placed on the rear of the crane?
• In crane operation, which aspect is critical to prevent accidents while lifting?
• In which operating area do boom trucks generally not have capacities?
• What must an operator do if they leave the cab of the crane while the engine is running?
• How should the operator verify the LMI's boom length or load radius readings?
• What does the load capacity of a crane depend on?
• The boom angle indicator provides information relative to what?
• For cribbing under an outrigger float, how should the blocking be arranged?
• Which component is crucial for ensuring weight distribution when operating with a crane?
• What is the primary concern when side loading a crane boom?
• What is the area created through the use of a metal mat connected to a grounded object like a crane called?
• What occurs when the leverage from the load exceeds the leverage applied by the crane?
• What is required for the safe operation of cranes in relation to electrical hazards?
• In which quadrant is a crawler crane considered most unstable during operation?
• If the load line of a crane comes into contact with an energized power line, what should you do?
• What is an essential consideration when determining MAD for power systems?
• What must a ground wire have to be considered safe for use?
• How is the safe working load of a wire rope determined?
• In a pick and carry operation with a R/T crane, where do most manufacturers require the load and boom to be positioned?
• What is the primary role of a designated person in a work crew?
• In pick and carry operations, which item could typically be removed from the crane?
• When using a boom mounted personnel platform on a boom truck, where must the load line block or ball be when personnel are occupying the platform?
• What action must be taken if a load exceeds the crane's lifting capacity?
• In the event of unexpected obstacles during crane setup, what should be the first step?
• How many randomly distributed broken wires are allowed for rotation resistant wire rope in 6 rope diameters?
• What must be ensured to avoid risk when operating mobile cranes near energized lines?
• What is the minimum number of parts of line required to lift a load weighing 36,500 lbs with a crane that has a line pull of 9,000 lbs?
• Who is responsible for performing a shift inspection on a crane according to OSHA 1926 Subpart CC?
• Who is permitted to signal a mobile crane during standard operations?
• What is the key difference between an Anti-two-block warning device and an Anti-two-block prevention system?
• A 47" turntable that is 1% out of level will equate to approximately how many inches?
• What type of hook is required when lifting personnel with a crane?
• What type of tag lines should be in use near energized lines?
• Why is it important to inspect rotation resistant wire rope more frequently?
• What must you do when entering or exiting an equipotential zone?
• Who is responsible for determining the weight deduction for a stowed jib?
• Why is it important to maintain a vertical hoist line during crane operations?
• According to OSHA, which area must be barricaded to prevent employees from entering?
• What is the maximum percentage of a crane's net capacity allowed when lifting with more than one crane?
• What type of load is defined as dynamic?
• What is the maximum resistance of a driven ground?
• What percent of tipping are most crawler crane's load charts based on?
• If equipment could potentially contact an energized line, what is necessary?
• In a range diagram, what can boom length and angle be used to determine?
• What is required on a hydraulic crane to hoist personnel?
• When hoisting a load, what is crucial to check before starting?
• What is one of the key safety measures when operating cranes near electrical sources?
• What does the number group 6 x 25 signify for wire rope?
• What is the minimum pitch diameter for load hoisting sheaves according to ASME B30.5?
• To calculate the lifting potential, why would an operator consider the effective weight of the jib?
• Where should the wind indicating device be located when a crane is hoisting an occupied personnel platform?
• What can happen if a crane's hydraulic boom sections are extended unequally?
• What should be done if the actual load exceeds the crane's rated capacity?
• Truck crane capacities are usually greater over which quadrant?
• What are considered safety devices according to the OSHA crane standard?
• Which voltage system at 7,450 feet results in an MAD of approximately 2 feet, 5 inches?
• What does a higher number of strands per wire rope typically indicate?
• What requirement must all cranes manufactured after November 2011 meet regarding the drum rotation indicator?
• What is the role of a dedicated spotter during crane operations?
• Which of the following best describes the responsibility of employees in recognizing electrical hazards?
• Which of the following indicates a specific performance standard for crane operators based on training?
• What is an essential procedure before lifting a load at near capacity?
• In a basket configuration, what is the recommended minimum D/d ratio for a 6x19 IWRC sling?
• How often shall chain slings be inspected and documented according to OSHA regulations?
• What is the most common cause of death for ground personnel working with cranes?
• What is the primary purpose of placing blocking or pads under outrigger floats?
• What should the operator do if a crane in operation makes contact with an energized power line and bursts into flames?
• If a crane has been idle for more than 6 months, which type of inspections must be performed?
• What is the area produced through the use of a metal mat connected to a grounded object called?
• What percentage of the crane's weight can a single outrigger pad approach if not overloaded?
• What is the best procedure to follow when underground utilities may be present?
• In crane operation, what is the significance of knowing the load chart?
• According to OSHA, what is the minimum number of wraps of wire rope that must remain on the drum with the hook at its lowest point?
• Protective grounding equipment must be able to handle maximum fault current at which location?
• What is the recommended practice when the crane's boom length is not explicitly listed in the load chart?
• Most truck-mounted cranes have a greater lifting capacity over which operating area?
• What can happen if the outriggers are not properly set before lifting a load?
• What is an automatic recloser?
• If the jib of a crane is offset, what happens to the crane's capacity?
• Which method does NOT minimize stress on slings when lifting?
• Why is it important to follow load charts while operating a crane?
• What is one of the primary reasons for conducting regular inspections on cranes?
• Who are the OSHA Minimum Approach Distance (MAD) charts intended for?
• How should a crane operator account for boom deflection while lifting?
• When should the operator never use the "run by the seat of the pants" technique?
• Why is it important to use the correct load chart for a specific crane model?
• What is the minimum safety factor required when hoisting personnel with a crane that has rotation-resistant wire rope installed?
• What is essential for managing safety around crane operations?
• What is the most likely damage that may occur when side loading a crane boom?
• What is the recommended minimum clearance for the rear swing of a crane in a tight space?
• What is the order of 3 common hitches from strongest to weakest?
• At an altitude of 7,450 feet and working on a 4.16 kV system, what is your approximate MAD?
• What should be done if the crane’s load path crosses over public pathways?
• What happens when the distance from the crane's center of gravity to the tipping axis is increased?
• What is the approximate minimum approach distance (MAD) when working on a 34.5 kV system at an altitude of 10,152 feet?
• If a 2ft x 2ft outrigger pad has 45,000 pounds applied to it, what is the pressure applied to the ground in psi?
• For a safe working environment, the calculated altitude correction factor is essential for which of the following?
• What does the term "upperworks" or "superstructure" refer to in a crane?
• What is the heaviest load that can be safely lifted if the jib capacity is 8 tons and the overhaul ball weighs 900 lbs?
• What should an operator do when a spinning load presents a danger?
• What is the safe maximum included angle recommended when attaching more than 1 sling to a hook?
• What is the minimum size of personal protective grounds required?
• What is the maximum number of broken wires allowed beyond end connections in a standing wire rope?
• What should be considered when selecting a quadrant for crane operation?
• If a boom truck is set up on outriggers without a front stabilizer, what is the working area typically limited to?
• Rough terrain crane capacities are generally greater over which quadrant?
• If the jib is removed from the Terex Stinger 3470 BT, what is the deduction?
• When the boom of a crane is lowered, what happens to the radius?
• Which term describes operations that involve the controlled use of a crane for work cycles?
• What is the minimum approved distance for lines energized at more than 50 kV for a non-electrically-qualified operator?
• What is the minimum allowable clearance from the crane and power lines under 50kV?
• What is the first action an operator should take before traveling under a low pipe rack?
• What certification is required for two members of a crew working on overhead lines in remote areas?
• What must the operator be able to see when retracting or extending outriggers on a crane?
• The red area of an instrument gauge indicates what?
• What is the best method for determining boom tip elevation?
• According to OSHA, what is the minimum distance to maintain from an energized power line with over 750kv while traveling?
• What condition must be met to ensure effective load handling with a crane?
• What is the safe guideline for handling loads under powerlines?
• How is backward stability of a crane tested?
• What must be barricaded to protect workers when setting up a crane?
• According to OSHA, what is the maximum wind speed allowed for personnel platform lifts?
• What is a critical safety measure when working near power lines?
• If a crane's jib is offset by 15° while the boom angle stays unchanged, what happens to the load radius?
• When a line is cleared for work, who receives the clearance from the system operator?
• Which personnel are allowed to be in the fall zone of a crane?
• If a signal person extends their arm at shoulder height, makes a fist, and sticks their thumb up, what action are they indicating?
• The line pull on your crane is 6,000 lbs and the load you want to lift weighs 25,000 lbs. What is the minimum number of parts of line needed to lift the load?
• What is a concern when setting up a crane over a sewer or water main?
• When extending boom sections that have independent hydraulic controls, what is crucial for safety?
• Which method is typically used to protect synthetic slings while handling sharp-edged loads?
• Who should make recommendations for setting up a preventative maintenance program?
• What does breaking strength divided by the design factor yield?
• When using a 6x19 IWRC load line to suspend a personnel platform, what is the minimum safety factor for the hoist line?
• What is the area produced when using a metal mat alongside grounding jumpers called?
• In emergency situations, what is crucial to do after an electric shock incident?
• A frequent inspection is defined as occurring how often?
• Which quadrant produces the least amount of ground bearing pressure on a crawler crane?
• Should the load be applied when determining the proper boom angle?
• What is the MAD at an altitude of 10,152 feet for a 34.5 kV system?
• Why is it important for operators to maintain a safe distance from power lines?
• How can an operator verify the accuracy of an electronic radius indicator before a lift?
• When can blocking (cribbing) be placed under outrigger beams?
• What exposure risk is present if someone is in contact with a crane grounded to the system neutral and makes contact with an energized line?
• When the anti-two-block (A2B) lock-out device is activated on a telescopic crane, which functions should be disabled?
• What may happen to a properly rigged load that is lifted off the ground, unless boom deflection is taken into account?
• What may happen when operating a crane that is not level and swings to the low side?
• What's the consequence of not conducting a pre-lift meeting?
• What is the key sizing factor for screw pin shackles?
• For a load chart adjustment, which action must be taken when lifting with a jib?
• In what condition is it crucial for a crane operator to be aware of surrounding energized lines?
• When performing a multiple crane lift, what must the operator be aware of regarding the load weight?
• What must be done when the capacity listings are no longer legible on a load chart?
• What must an operator do if potential hazards are identified during crane operation?
• When setting up a crane, which load chart must be used if the outriggers on one side could not be extended?
• What is the capacity ratio for a basket hitch of a wire rope sling based on 100% of the hitch capacity?
• At 5,280 feet, what is your approximate minimum approach distance (MAD) when working on a 12 kV system?
• What is the greatest concern when rigging a load with synthetic slings?
• What can heavy winds influence when operating a crane?
• At what altitude is the MAD adjusted to 2 feet, 5 inches for a 4.16 kV system?
• If a bold line is shown on a load chart, the capacities below the line are based on what?
• What is the purpose of having a load chart for a crane?
• All hazards and potential problems should be identified during which process?
• What should be done when working closer than 10 feet on a 12 KV line?
• What should a crane operator do if they can't level their crawler crane?
• When using load/capacity charts, what does the term "jib angle to ground" refer to?
• What is the proper procedure when using an insulating link or boot near power lines?
• According to OSHA standards, how long must monthly inspection records be kept?
• How should an operator respond to a significant boom deflection while lifting a heavy load?
• To ensure safety, which area around a crane should be routinely checked for personnel during operation?
• Why might blocking be placed under the ends of tracks?
• If rotation or uncontrolled movement of a load occurs during hoisting, what should the operator do?
• When lifting a load with a stowed jib, what is the jib deduction based on?
• Eccentric main boom tip reeving typically results in what issue?
• What is the purpose of placing mats or cribbing under outrigger floats?
• What can happen if a crane is operated without using tag lines during a load lift?
• Why is cribbing important during crane operations?
• A truck crane is set up on outriggers. What percentage of the crane's capacity governs the part of the load chart related to stability?
• R/T cranes typically have greater lifting capacity over which working area?
• If a crane is set up out of level with a short boom at a high boom angle and swings to the high side, what may happen?
• How does a longer boom typically affect stability?
• What is the sling stress for each sling leg for a depicted load of 12,000 lbs?
• If a jib is erected but not being used, it is treated as a deduction from the crane's?
• What happens to ground bearing pressure when moving a crawler crane from soft ground to harder ground?
• According to OSHA, what is the designation of a person who must perform a visual pre-shift inspection on a crane?
• When working on a 15 kV system at 2,942 feet, what is your MAD?
• When lifting on outriggers, how should the outrigger floats be positioned?
• What factor is crucial for maintaining stability while using a crane?
• What must the employee in charge do before releasing a clearance?
• What is the best type of softener for handling loads with sharp edges when using synthetic slings?
• In crane operation, what is crucial to maintain to ensure safety during lifting operations?
• How much area is needed for 45,000 pounds to create only 20 PSI?
• According to OSHA regulations, how many randomly broken wires are permissible in a 6x19 IWRC RRL hoist line?
• According to OSHA regulations, when must retraining be required?
• What should a lift director provide to the crane operator during a lift?
• When a person is removing material from a crane that has contacted a power line, what type of potential are they exposed to?
• Under what circumstance is it permissible for an employer to use a suspended personnel platform?
• What type of sling is specifically not suitable near fumes or vapors?
• If you fall between the radius listed on the load chart while operating a crane, you must use the?
• What is a major effect of abruptly stopping a rapid swing on a long-boom mobile crane?
• When the boom length of a crane is between two listed lengths, which capacity should be used?
• When should rotation resistant wire rope used as a host line on a boom truck be replaced?
• What is the role of the controlling entity during crane setup?
• What does "working radius" refer to in crane operations?
• What is an essential pre-lift safety measure when working near power lines?
• What is the purpose of a range area limiting device on a crane?
• When operating a crane, which practice helps to minimize the risk of electrocution?
• When does an erected jib have its greatest effect on a crane's operation?
• What happens when the boom handle is released to its center position?
• In the presence of multiple crew members, what must be done if one person is at risk when a clearance is achieved?
• What is the proper action if a crane's outrigger shows signs of damage during inspection?
• When is a dedicated spotter required when working near power lines?
• Which of the following is NOT a voltage system mentioned in the context of MAD calculations?
• What action should be taken if a crane’s outrigger floats are unstable?
• Who is responsible for being on site during a lift and coordinating load details?
• What is a critical consideration for the stability of a crane during load handling?
• Which type of inspection required by OSHA does not require any documentation?
• When lifting a load, which hitch type provides the most stability?
• What must an observer do during crane operations?
• What is the primary purpose of a spreader bar?
• If a crane is set up out of level, what happens when it swings to the low side?
• What is required during pole setting operations around energized lines?
• Why is it crucial to assess the crane's stability before lifting a load?
• Which is the best practice for maintaining stability during multi-crane operations?
• What condition can lead to less tipping resistance during a lift?
• What is the maximum included angle for using a shackle to attach multiple slings?
• What is one of the primary considerations when planning a two crane lift?
• When telescoping the boom section of a rough terrain crane, which section should be telescoped first?
• Under what condition is side loading of a crane permitted?
• When is it acceptable for outriggers on a crane to be less than fully extended?
• Under what condition can a clearance be released?
• Who has the authority to give a stop signal to the crane operator?
• If a person is in contact with a crane grounded to the system neutral while also in contact with an energized line, they would be exposed to:
• When swinging a crane and people walk into the swing path, what should the operator do?
• What describes a qualified electrical worker?
• What effect does swinging a loaded crane to the low side have on the crane’s stability?
• When is it permissible for a crane to be considered energized?
• Mobile cranes operating near energized power lines must be:
• What type of clothing should a person exposed to energized parts avoid wearing?
• Nylon web slings should not be used near which of the following?
• When extending the boom on certain cranes with independent hydraulic controls, how should the operator extend each boom section?
• What is the sling stress for each sling leg for a depicted load of 22.4 tons?
• What should be avoided when selecting a lubricant for visual inspection of wire rope?
• When testing a man basket, how long must the test pick be maintained?
• What information will a range diagram not provide to the operator?
• A person standing near a grounded crane that has contacted power lines is exposed to which type of potential?
• A truck crane, with outriggers properly set, is rated at what percentage of its tipping capacity?
• How does high wind typically affect the setup of a crane with a long boom?
• When operating a crane, what must an operator do if the hoist line makes contact with an energized power line?
• What is a self-controlled device that interrupts a circuit with a predetermined sequence?
• According to OSHA standards, when are you considered an "Operator in Training"?
• What factor should be considered when determining the working radius of a crane?
• When setting up a crane on a job site, who is responsible for ground preparations such as slope and compaction?
• What is the design factor for rotation resistant wire rope?
• What is the minimum safety factor designed for most overhead rigging?
• Which piece of equipment is crucial in preventing electrical accidents when working around cranes?
• According to ASME B30.5, which type of crane must have seat belts provided?
• Where is ground bearing pressure greatest on a crawler crane during hoisting?
• On what percent of tipping are most boom truck load charts based?
• Crawler cranes usually have greater lifting capacity over which area?
• In crane operations, what is the purpose of implementing outriggers?
• What is the recommended distance to stay back when operating a boom truck near a reinforced retaining wall?
• Before beginning lift operations, what should the crane crew conduct?
• What should be compared to determine if the load charts are correct for the crane you are operating?
• When a boom truck crane operates on properly set outriggers, where is the tipping axis located?
• Why do most crane manufacturers reduce load capacity for duty-cycle operations?
• In a two crane lift with differing rated capacities, how should the crane with the greater capacity be positioned?
• Which altitude results in a MAD of 3 feet, 3 inches for a 34.5 kV system?
• What wind speed should a qualified person evaluate hoisting operations for personnel platforms?
• What chart must an operator refer to when operating a rough terrain crane with all tires firmly planted?
• When setting up a crane by a ditch or excavation, how far should you stay from the edge?
• How do you determine machine clearances during crane setup?
• When determining the "gross load", what is the best method to use?
• Where is the best location to place the level when leveling a crane?
• What must be done to ensure safety while working near energized power lines with mobile cranes?
• What effect does retracting the crawlers of a crawler crane with a long boom have on its capacity?
• When a crane is equipped with multiple hoisting winches, where will the auxiliary ball typically be reeved?
• What is the recommended characteristic of a lubricant used for wire rope?
• What is the minimum flange clearance for a fully loaded hoist drum according to ASME B30.5?
• What defines a wire rope lay length?
• At what horizontal sling angle does the tension in each leg of a 2-leg bridle equal the weight of the load?
• According to ASME B30.5, what is the prohibited zone for power lines that are 60kV?
• What is the best way to prevent injuries from the counterweight of the crane?
• When setting up a crane in an area with public access, what should you do?
• LMI should be installed on cranes with lifting capacities of what minimum weight?
• When checking the main and auxiliary hoist brakes, what should an operator do?
• When exposed to flames or electric arcs, which of the following should clothing not do?
• What can result from not using a tagline in a dangerous rotating load situation?
• If the hoist line of a crane contacts an energized power line, what is necessary if the operator safely breaks contact by swinging away?
• When can multiple clearances be issued on a single circuit or line?
• Who has the authority to release a clearance once a crew has it?
• What is the term used for a load that is not moving?
• What happens to the line pull as wire rope spools onto a hoist drum and the layers on the drum increase?
• What must occur when extending the outriggers?
• What safety measure should be taken when using cranes for lifting personnel?
• When setting up the crane with three outriggers fully extended and one halfway, what must the operator utilize?
• How often must a standby crane be inspected according to ASME B30.5?
• What should an operator do if a hydraulic leak occurs in the outrigger while lifting a load?
• In some truck-mounted cranes, what area has no lifting capacity?
• What type of potential could cause injury to someone standing near a ground attached to a crane in contact with power lines?
• What is the maximum percentage of a crane's net capacity when lifting personnel in a suspended personnel basket?
• What should a crane operator do if their truck crane, with fully extended outriggers, lacks a fifth front outrigger?
• Which hitch provides 360° of contact when handling pipe?
• What is the time frame for a periodic inspection of a crane?
• What do most crane manufacturers prohibit from being added to the crane?
• What does the term "parts of line" refer to in crane operation?
• When swinging a heavy load on outriggers, what must the outrigger being swung over support?
• What is a key consideration when using a crane's load chart?
• What information must be displayed on a spreader bar that weighs over 100 lbs?
• If a crane swings downhill after releasing the swing brake, what happens to the load radius?
• Which factor affects the decision on what type of inspection is required for an idle crane?
• What is the minimum safety factor that standard wire rope must maintain during hoisting operations?
• What is the effect of properly set outriggers on crane stability?
• Stability capacities for a crawler crane are based on what percentage of the actual tipping load?
• What is the primary factor that most jib capacities are based on?
• What is the minimum safe distance for an electrically unqualified operator and spotter from a power line?
• If a power line has an automatic recloser, what should be done with its reclosing feature?
• What is the crane's capacity at a 42 ft radius if the load chart indicates 25,000 lb at a 40 ft radius and 20,000 lb at a 45 ft radius?
• In crane operations, what does RRL stand for?
• Which of the following factors can increase the risk of tipping a crane?
• What is the primary purpose of an equipotential zone in crane operation?
• What action can potentially cause an extended boom to topple backwards?
• For cranes idle for less than 6 months, what type of inspection is required?
• What equipment is essential for assessing the proper boom angle during a lift?
• How many power line warning decals are required on a crane working in construction?
• A mobile crane operator is responsible for which of the following?
• When personnel platforms are lifted with a telescopic crane, what kind of system is provided for damage prevention?
• Is it permissible to hand tools over barricades to workers while in an equipotential zone (EPZ)?
• If a crane is not set up level and the operator swings a load from the high side to the low side, what happens to the load radius?
• Which of the following actions is most critical during crane operation?
• When should a tagline be used while operating a crane?
• For duty cycle operations like skipping concrete, by what percentage must a crane's load chart capacity be reduced?
• The operating radius of a crane is typically measured with what?
• Why is it essential to use a transition area when moving in and out of an equipotential zone?
• If a crane has a line pull of 8,000 lbs and needs to lift a net load of 36,400 lbs, how many parts of line are required?
• When hoisting personnel with a crane, by what percentage should you de-rate the crane's load chart capacity?
• According to OSHA, what is the maximum time to reach an employee who has received an electric shock?
• What is OSHA's minimum required clearance when a crane is in transit under 50kV power lines?
• What should be done if conditions around a crane and power lines change during operation?
• When measured from the horizontal, what effect does a lower sling angle have?
• What type of person must be designated to conduct inspections on cranes according to OSHA?
• Who can authorize the operation of cranes near energized lines?
• What is the sling stress for each sling leg for a depicted load of 1440 lbs?
• What can cause side loading on a crane?
• Which factor is crucial for a qualified operator to maintain when working near energized lines?
• What is the term for the exposure that could risk injury to a person near a ground attached to a crane that has touched a power line?
• What action must be taken if the power line being worked on is equipped with an automatic recloser?
• What should be a primary concern when setting up a crane on a construction site with new buildings?
• What does OSHA require regarding the maintenance and placement of power line warnings on cranes?
• What must mobile cranes be when operated near energized equipment?
• What is a key responsibility of ground personnel when cranes operate near power lines?
• What is a potential risk of not accounting for radius when operating a crane?
• How can an operator determine if the correct load chart is being used?