NCCCO Core Exam Questions and Answers: 2024-2025 Edition, Exams of Workplace Safety

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NCCCO CORE (345 QUESTIONS AND

ANSWERS) 2024-2025 NEW REVISED

EXAM GRADED 100% PASS.

If taking sides strain on a boom what concerns the operator the most - Precise answer Boom damage If a crane load chart has capacities listed in the shaded area this means that - Precise answer If overloaded structural confidence will be compromised As the layers of rope on a drum increase the allowable line Pull wil - Precise answer Decrease Of the following actions which one will most likely cause a side load condition - Precise answer Abruptly starting or stopping the swing Cording to OSHA with any hook ball or attachment at its lowest point a minimum of blank reps must remain on the drum at all times - Precise answer 2 What is the minimum distance of crane must maintain from powerlines rated below 50 KV - Precise answer 10 feet What is the best procedures to follow if underground utilities are present - Precise answer Contact utility company For boom is reeves eccentrically to the block the most common result would be - Precise answer Twisting of the boom What is the safety factor for 6 x 19 IWRC wire rope - Precise answer 3.5- What is the safety factor for rotation resistor wire rope - Precise answer 5- 1 What is the safety factor for rigging hardware - Precise answer 5-

What is the safety factor one hoisting personnel using IWRC wire Rope - Precise answer 7- What is the safety factor hoisting personnel using rotation resistance wire rope - Precise answer 10- Unless the manufacturer states otherwise the wind speed to seize hoisting Shall be - Precise answer 30 mph When hoisting personnel OSHA requires wind speed not to exceed - Precise answer 20 mph Who has the responsibility of determining the correct weight of the load - Precise answer Supervisor When an operator leave there a crane they must - Precise answer Land load engage all locks and Pawls and lock machine When is it safe to work closer than alarm for distance from any powerline - Precise answer When the utility company certifies that the lines are D energized When operating a crawler crane what is the most unstable allowable quadrant of operation - Precise answer Side What is not a good location for crane set up - Precise answer Above utilities If an operator arrives at a job site and the crane is already set up how would he checked the main an auxiliary breaks - Precise answer Left the load a few inches off the ground and test the brakes Tipping capacities for crawler cranes are based on - Precise answer 75% The term load radius is best defined as - Precise answer The distance from the center of rotation of the crane to the center of gravity of the suspended load

Should the load be applied when determining the proper boom angle - Precise answer Yes When telescoping the boom section of a rubber tire which section should be telescoped first - Precise answer All sections should be telescoped equally Hooks must be discarded if a twist more than is found - Precise answer 0 degrees Hooks must be discarded if a throat opening of more than is found - Precise answer 5° Wire rope must be removed from service if any of the following conditions exist - Precise answer Six randomly distributed broken wires Wear of more than 1/3 of the outside diameter three broken wires and one strand of one lay length When arriving first on the job site the operator should first determine the condition of the - Precise answer Access roads Basket hitch is rated of a vertical hitch - Precise answer 200% How many broken wires must be present in one strand of one lay for running wire rope to be removed from service - Precise answer 3 How many broken wires must be present in rotation resistant wire rope to be removed from service - Precise answer 2 in six diameters What is the minimum clearance needed between cranes counterweight and any obstacle - Precise answer 2 feet To restrict access to a crane swing radius the operator must - Precise answer Barricade the area around the crane You should always have at least how many wraps on A hoist drum - Precise answer 2 When working around powerlines you must - Precise answer Never stockpile material under powerlines

Maintain the correct distance according to the rated KV Ground the crane with the proper grounding cable Boom angle is best described as - Precise answer The angle between the loaded boom and the horizontal What is the best procedure to follow when underground utilities may be present - Precise answer Contact local utility company When using cable or nylon spreaders it is important to remember - Precise answer The lower the spreader angle the greater the tension When is spinning load presents a danger the operator should - Precise answer Use a tagline Parts of line means - Precise answer The number of lines running through the load block A sudden start or stop while operating a crane produces - Precise answer A dynamic load What percent of a cranes rated capacity is it classified as a critical lift - Precise answer 75% During disassembly of a long boom the hog lines are connected on a maximum cantilever point and the boom is slightly lifted off the ground which pins are to be removed next - Precise answer The bottom pins ahead of the cantilever point If you were to make a left using a four legged bridle how many legs are you going to calculate the load - Precise answer 3 According to OSHA all cranes equipped with a luffing jib must have - Precise answer Check valve When performing picking Carrie with a boom truck the speed limit is - Precise answer As prescribed by the manufacturer

When determining backward stability the crane must be set up under the following conditions - Precise answer Crane unloaded and load block on supports Crane on outriggers Maximum boom angle Crane SHOULD NOT BE in the longest possible boom On a crane load chart the area referred to as over the front is - Precise answer Different depending on the crane manufactures definition When cranes included within the scope of ANSI are mounted on barges or pontoons the cranes load rating shall be - Precise answer Modified as recommended by the manufacturer The first layer of a Hoist drum should have a pitch diameter of no less than times the rope diameter - Precise answer 18 Drum rotation indicators must be installed on all hoist leavers - Precise answer True On a hydraulic boom hoist pistons a must be provided in case of hydraulic failure - Precise answer Pressure relief valve All cranes equipped with a torque converter must have a - Precise answer Clutch reachable from the operators station Controls for operating a superstructure mounted power plant shall include all of the following except - Precise answer Means to shut off two cycle diesel engines in emergency Forces on a cranes hand lever Shall not exceed - Precise answer 35 lbs Forces on a cranes Foot pedal shall not exceed - Precise answer 50 pounds The travel distance on a cranes two way lever must not exceed from the neutral position - Precise answer 14 inches The travel distance on a cranes one-way lever must not exceed from the neutral position - Precise answer 24 inches

Frequent inspection occurs - Precise answer Every shift Frequent inspection should be performed by - Precise answer Competent person Periodic inspection occurs - Precise answer Weekly to monthly When using single saddle or U bolt type clips the saddle shall NEVER be installed on - Precise answer The live end The pitch diameters for boom hoist sheaves shall not exceed - Precise answer 15 Pitch diameter load hoist sheave shall not exceed - Precise answer 18 Pitch diameters for load block sheaves shall not exceed - Precise answer 16 Prior to leaving a crane unattended the operator shall - Precise answer Land load or attachment Disengage master clutch Turn off engine secure from authorized use Before lifting a rated load the operator shall - Precise answer Left the load a few inches off the ground and apply the brake When performing a pic with a truck crane on outriggers the tires must be - Precise answer High enough to relieve them of the cranes weight When blocking on the outrigger float the cribbing Shall be - Precise answer Sufficient to support the crane and its load When a crane is being used to lift personnel and inspection of the crane should be made - Precise answer Frequently When using audible signal is one signal would indicate - Precise answer Stop Two audible signals - Precise answer Go ahead

Three audible signals - Precise answer Go back A crane must stay at least from energize powerlines under 50 Kv - Precise answer 10 feet A crane operator must respond to a stop signal from - Precise answer Eveyone The margin of stability on a truck crane is - Precise answer 85% Of the following who is permitted inside the fall zone - Precise answer Qualified rigger The revolving frame of equipment in which operating machinery is mounted is referred to as - Precise answer Super structure When is it permissible to be under the boom when assembling or disassembling a boom - Precise answer When the A/D Director proves it is in feasible not to work under the boom When installing pins on a lattice boom how should the pins be installed - Precise answer Tapered side out When assembling or disassembling a lattice boom crane the amount of boom extended out past the bridal/equalizer is known as - Precise answer Cantilever length During assembly or disassembly of cranes no part of the crane or its components can come within of powerlines - Precise answer 10' If any part of the crane rigging or attachments load/line can come within of a power line a dedicated spotter must be provided - Precise answer 20' Up to 50 KV - Precise answer 10 feet Over 50 to 200 kV - Precise answer 15' Over 200 to 350 KV - Precise answer 20'

Over 350 to 500KV - Precise answer 25' Over 500 to 750 KV - Precise answer 35' Over 750 to 1000Kv - Precise answer 45' If operating a crane in proximity of power lines over 1000 V what is the minimum clearance - Precise answer Determined by the utility company During hoisting operations in proximity of powerlines all tag lines and rigging should be - Precise answer Synthetic Powerlines or presumed energized unless - Precise answer The utility companies certifies the lines are D energized and they are visibly grounded Up to .75 kv - Precise answer 4' Over .75 to 50 Kv - Precise answer 6' Over 50 Kv to 345 Kv - Precise answer 10' Over 345 kvvolts to 750 kV - Precise answer 16 feet 750 kV to 1000 kV - Precise answer 20 feet What type of inspection requires no documentation - Precise answer Shift During what inspection classification does inspection of ground conditions take place - Precise answer Shift I frequent inspection is made - Precise answer Weekly to monthly A periodic inspection is made - Precise answer Monthly to annually A shift inspection must be completed - Precise answer Before the end of shift What inspection classification requires disassembly of a crane as necessary - Precise answer Annual/comprehensive

Equipment idle for more than three months must have an inspection performed in accordance with classification - Precise answer Monthly Documentation of the annual/comprehensive inspection must be retained for a minimum of - Precise answer One year Hooks with locks and latches must be used except when setting wooden trusses in such situation can be used - Precise answer J hook When is used to have a crane to hoist personal permitted - Precise answer When there is no other Safeway When hoisting personnel the total weight of the load basket attachment and rigging must not exceed of the rated load - Precise answer 50% Any gate or means of access/egress in a personal basket must not - Precise answer Swing outward Of the following what is not permitted in a personal basket - Precise answer Building materials All bridals and rigging used for personal hoisting cannot be used and for any other hoisting activities - Precise answer True Before performing a lift with a personal hoist the following must be done - Precise answer Trial pick Proof lift Pre-lift meeting When performing a pic with a personnel hoist overwater for arrest systems must be used - Precise answer False Load rating charts are based on a percentage of the load which produces a tipping condition and the least stable direction the percentage is what for a truck crane - Precise answer 85% A sudden change in the speed of the left and attachments will produce a - Precise answer Shock load

Hooks must be discarded if a throat opening of more than as found - Precise answer 5% Hooks must be discarded if a twist of more than what is found - Precise answer 0° When performing duty cycle work the rule of thumb is to - Precise answer Use 80% of the manufacturers load chart When assembling a lattice boom crane in what order should boom sections be installed - Precise answer Shortest closest to boom base When extending bloom sections on a hydraulic crane you should - Precise answer Extend all the sections equally When assembling a lattice boom on a truck crane the outriggers must be fully extended and the boom placed - Precise answer Over the quadrant of maximum stability When handling boom sections what type of sling is preferred - Precise answer Synthetic The distance it takes a strand to make a complete revolution around its core is referred to as - Precise answer Lay length How many random broken wires must be present for running route to be removed from service - Precise answer Six In one lay How many broken wires and one strand of one lay must be present for removal - Precise answer Three What is the minimum number of broken wires must be present and standing rope to warrant removal - Precise answer Two////One is allowed How many broken wires are permitted at and end connection of a pendant line - Precise answer 1 How many broken wires present in rotation resistant wire rope warrant removal - Precise answer Two in six diameters

What is the safety factor for running rope - Precise answer 3.5- What is the safety factor for rigging - Precise answer 5- What is the safety factor for rotation resistant wire rope - Precise answer 5- In order of hitch strength goes as follows - Precise answer Basket vertical choker Can a crane's roof serve as a workstation for rigging or assembly/disassembly or maintenance - Precise answer Only if it has the capability of supporting 250 pounds A load applied at an angle to the vertical plane of the boom is referred to as

• Precise answer Side load///// when you pick some thing not being directly over the Center of the load The drum flange shall not extend a minimum of what from the top layer of rope - Precise answer Half an inch Boom hoist sheaves shall have a minimum pitch diameter of - Precise answer 15 times rope diameter Load hoist sheaves shall have a minimum pitch diameter of - Precise answer 18 times rope diameter Lower block sheaves shall have a minimum pitch diameter of - Precise answer 16 times rope diameter All load test shall not exceed what of the manufacturers rated capacity - Precise answer 110% Before leaving his crane unattended the operator must - Precise answer Land the load set all dogs and pawls and shut the engine What is the minimum clearance needed between the cranes counterweight and any obstacle - Precise answer 2 feet

When setting up a crane near a ditch or excavation you should stay what distance from the edge of the excavation - Precise answer Two times the depth of the excavation When setting up a crane near a retaining wall you should stay what distance from the edge of the wall - Precise answer The same distance as the walls height When performing duty cycle work the rule of thumb is to - Precise answer Use 80% of the manufacturers load chart A cranes quadrants of operation is - Precise answer Different depending on the manufacturers load chart When hoisting personnel the type of hook to be used must be the type that can be - Precise answer Locked and latched Load rating charts are based on a percentage of the loads which produce a tipping condition and the least stable direction the percentage is watt for a truck crane - Precise answer 85% A standard hand signal chart must be posted conspicuously at the job site the ideal spot for the chart is - Precise answer On the crane If the crane manufacturer does not specify what order and which boom sections are to be assembled - Precise answer Smallest sections are closer to the boom base Boom connecting pins should be installed - Precise answer From the inside out Personal hoisting by a crane is permitted when - Precise answer No other safe means are available Cranes lifting personal platforms must have - Precise answer Anti-two block What is not permitted to be in an occupied personnel hoist - Precise answer Construction materials

Tools and materials in an occupied personnel basket - Precise answer Must be secured When rigging personal platforms using a wire rope bridal - Precise answer A link must be used to ensure the load is divided evenly Bridals and rigging used for personal hoisting - Precise answer Can only be used for personal hoisting The ground pressure under outriggers is higher than it is under a crawler track because of a smaller bearing surface - Precise answer True Deflection of the boom and pendant stretch will increase - Precise answer Load radius Within what percentage of level does a telescopic boom crane have to be for the gross ratings in the load chart to remain valid - Precise answer 1% The load line of the crane you're operating comes into contact with an energize powerlines there's no sign of any other dangers such as fire and such situation you should - Precise answer Stay in the cab until the lines are D energized Unless the operator takes a count of boom deflection when lifted off the ground a properly rigged load may - Precise answer Swingout away from the crane According to be 30.5 mobile crane standard it's OK for an operator to leave the cab of a crane with the engine running so long as - Precise answer The operator keeps the crane in view and restricts access to the area around the crane Unless the manufacturer states otherwise truck cranes generally have no lifting capacity over which area - Precise answer front Working radius is defined as the distance from the - Precise answer Center of rotation of the crane to the center of gravity of the load Rough terrain cranes capacities are generally greater over the - Precise answer Front

Truck crane capacities are usually greater over the - Precise answer rear A crane is set up with three of us for outriggers fully extended and the fourth retracted unless the manufacturer states otherwise the capacity of the crane in this configuration will be found in the - Precise answer On Rubber chart Sideloading of the cranes boom is permitted - Precise answer Only with freely suspended loads Blocking cribbing may be placed under the Outrigger beams - Precise answer Never they go under the pads Timber blocking placed under the tips of the tracks on a crawler crane will: - Precise answer Make the crane more stable When handling boom sections the best place for slings to be attached is - Precise answer At the pin connection points at the ends of the top chords The tipping access of a crawler crane - Precise answer Depends if the idler or sprocket are in line or offset from the track rollers When setting a crane up on outriggers the wheels of the crane should - Precise answer be just high enough off the ground to relieve the tires of crane weight On pick and carry operations you should - Precise answer Keep the boom as short as possible On a crawler crane ground bearing pressure is greatest - Precise answer Over the corner When preparing to hoist a light load the hook should be positioned - Precise answer Directly above the loads center of gravity It's OK to temporary bypass a cranes overload warning system - Precise answer During assembly/disassembly operations

On a crawler crane the part of the low charge governed by stability is based on what percentage of its capacity - Precise answer 75% When the boom length of the crane falls between the lengths listed in the load chart you should use the next capacity listed for - Precise answer The next longest boom length A Jibbs offset is the Jibbs angle to the - Precise answer Boom All hazards and potential problems should be discovered - Precise answer Pre-operational work site inspection What was the result of boom deflection be - Precise answer Increased Boom radius When a crane is out of level by 1° it will lose the most capacity at what configuration - Precise answer Long boom minimum radius What is the purpose of using a spreader beam - Precise answer Support long hard to control loads Which of the following actions is most likely to cause two blocking - Precise answer Telescoping the boom out When is it safe to handle loads under powerlines - Precise answer The load know where any part of the crane can come closer than regulations allow When working your power lines tag lines and slings should be constructed of - Precise answer Probably propylene or polyethylene and webbing because they offer a fair insulating properties When reading a load chart the listed capacity has an Asterix next to it this means - Precise answer The capacities are based on the cranes structural competence Pick can be made with the intermediate outriggers - Precise answer If there is a load chart for intermediate Outrigger work

The main boom angle minus the gym offset would equal - Precise answer Jib angle to the ground You can use the range diagram to determine the - Precise answer Radius of unloaded boom Cranes on our acres are based on what percentage of stability - Precise answer 85% Cranes on crawlers are based on what percentage of stability - Precise answer 75% If a crayon is two blocked what functions should the anti-two block prevention system let you operate - Precise answer Boom up hoist down telescope in Of the following conditions what condition LMI not warn you of - Precise answer Out of level When operating a crane of a capacity of 25 tons or less on a barge the maximum list or trim is - Precise answer 5° When operating a crane over 25 tons on a barge the maximum list or trim is

• Precise answer 7° When operating a crane on a barge the crane must be - Precise answer Secured to the barge When using a four legged bridle the capacity is calculated using - Precise answer Three legs On a standing wire rope broken wires Adam and connection means the rope must be replaced - Precise answer Two Line pull is - Precise answer The amount of weight a drum will hoist for a given layer Backward stability on a mobile crane can become an issue when the crane is working - Precise answer Over the side at a minimum radius

Rotation resistant wire rope requires a higher safety factor because - Precise answer Internal damage occurs Timber mats work best when they are - Precise answer Bolted together Blocking under floats shall be - Precise answer Sufficient to support the crane and the load When operating a crane with a long boom on uneven ground you should - Precise answer Block under the pad and keep a 90° angle between the cylinder rod and pad When booming down a rough terrain crane and extending out Riggers from the cab you should - Precise answer Post a signal person One swing a suspended load on any crane with crawlers the most ground pressure will be exerted - Precise answer Over the corner A luffing jib on a conventional or hydraulic crane will - Precise answer Boom up or down independently of the main boom On a crane off level by 1% with a main boom height of 100 feet the whip line would be off-center by - Precise answer 12 inches////12 inches for every 1° for 100 feet The crane center of gravity were very the most swinging from the rear to the side with what type of crane - Precise answer Truck crane When is sideload is introduced to a lattice boom what part of the boom would encourage the highest stress - Precise answer Boom tip Voice signals must include - Precise answer Function and direction Distance and speed Function and stop When assembling or disassembling a lattice boom when is it permissible to work under the boom - Precise answer When the AV Director shows it is in feasible not to and the limits time and movement////safe=never only when says permissible

Eccentric main boom reeving can cause - Precise answer Twisting of the boom When putting wire rope on a drum the rope can be spoiled to within of the top of the drum - Precise answer Half an inch To prevent unauthorized access to the cranes working area though needs to be barricaded - Precise answer Working radius What is the minimum distance from the cranes counterweight and any obstacle - Precise answer 2 feet Which of the following weather conditions could restrict or stop hoisting activities - Precise answer Wind gusts Rigging hooks must be discarded if the throat opening is increased by more than - Precise answer 5% A crane performing personal lifts must not exceed of its rated capacity - Precise answer 50% When a load is being landed in the fall zone who should be in the fall zone - Precise answer Qualified rigger During assembly or disassembly of the crane when is fall protection required - Precise answer If the fall possibility is greater than 15 feet Direct of attachment of a personal hoist to a luffing jib is prohibited - Precise answer True What is the safe working load of rotation resistance wire rope - Precise answer 5 to 1 By order of hitch strength which is the Precise answer - Precise answer Basket, vertical, choker What is the purpose of using a jib - Precise answer increase in height You should always have at least how many wraps on a hoist drum - Precise answer 2

On a load chart values above the bold line mean - Precise answer Capacities based on structural competence The primary purpose for a rooster sheave or auxiliary boom point sheave is to - Precise answer Separate the hoist lines Where is the best location for a leveling a crane - Precise answer Upperworks What is the safe working load of right regular lay IWRC wire rope - Precise answer 3.5- What is the safe working load of boom hoist wire rope - Precise answer 3.5 to 1 What is the safe working load of rigging slings - Precise answer 5 to 1 What is the nominal strength of wire rope - Precise answer The ultimate load at which a tensile failure occurs What is a two leg bridal - Precise answer Two wire rope slings attached by a lifting ring Wire rope shall be removed from service if any of the following are present

• Precise answer Six randomly broken wires in one lay Three randomly broken wires in one strand and one lay Where or scraping of 1/3 the original diameter of outside individual wires Boom extensions and Jibbs are used - Precise answer To increase height Capacities above the bold line on the load chart are based on - Precise answer Structural strength When is it safe to work under the boom while erecting or dismantling - Precise answer Never safe What is the minimum clearance needed between the crane counterweight and any obstacle - Precise answer 2 feet

When working around powerlines you must - Precise answer Never stockpile material under powerlines Maintain the correct distance according to the rated kilovolt Ground the crane with the proper grounding cable When using a crane to pick and carry a load you must - Precise answer Tie off the load When using cribbing under your outriggers you should have at least times the total float area covered - Precise answer Three times the float area Hydraulic pumps supply to the cranes hydraulic system - Precise answer Pressure The minimum distance between the cranes boom and 50 kV high-voltage wires should be - Precise answer 10 feet Sideloading may be caused by - Precise answer Starting or stopping the swing to rapidly What is the best procedure to follow when underground utilities may be present - Precise answer Contact local utility company Eccentric main boom tip reeving causes - Precise answer Twisting of the boom Who has the responsibility for determining the correct weight of a load - Precise answer supervisor When an operator leaves the crane he must first - Precise answer Put the load on the ground and put all dogs or pawls in If replacing the hoist line wire rope on a crane how do you determine the size or type of wire rope to use - Precise answer Use manufactures operators manual or load chart After the crane has been checked out and before lift operations begin the crew should - Precise answer Have a pre-lift meeting

AcCording to Inzi personal platform lift should not be made with wind an excess of - Precise answer 20 mph When is it safe to work closer than allowable distance from powerlines - Precise answer When utility company says lines are de-energized When operating a truck crane what is the most unstable allowable quadrant of operation - Precise answer side/////says allowable When an operator arrives at the job site and the crane is already erected how would the operator check the main auxiliary hoist brakes - Precise answer Lift the load off the ground and apply the brake Who gives the operator hand signals - Precise answer The person assigned prior to the lift Why are use mats or cribbing - Precise answer To reduce ground pressure Tipping capacities of crawler cranes are based on what percentage of tipping - Precise answer 75% Should the load be applied when determining the proper bloom angle - Precise answer Yes Load radius is the distance from the center of gravity of the suspended load to the - Precise answer center of rotation Net capacity is equal to - Precise answer Gross capacity minus capacity deductions And a range diagram boom length of an angle can be used to determine - Precise answer Load radius Which position should the gantry of a crane be when lifting a load - Precise answer Highest position Deflection of the boom and pendant stretch will increase - Precise answer Load radius

When making a multiple crane lift it is important for the operator to understand that - Precise answer The load may increase if the other crane lands the load Most crane manufacturers reduce load capacity for duty cycle work because - Precise answer Sideloading forces may occur What is the standard rope used on most cranes - Precise answer Right regular lay The proper way to calibrate a boom angle indicator is to - Precise answer Using a level raise the boom to horizontal and said the indicator at 0° What is the first thing an operator should do before going under a low pipe rack - Precise answer Post a signal person to check clearance When working on outriggers the only time they should be less than fully extended is when - Precise answer There is a load chart for this operation If setting up the crane by a ditch or an excavation you should stay at least what distance from the edge - Precise answer Twice the depth of the excavation When setting up a crane in an area that has a public access you should barricade - Precise answer The working radius When using cable or nylon spreaders it is important to remember - Precise answer The lower the spreader angle the greater the tension Backward stability of a crane is tested with - Precise answer Basic boom at maximum angle with no load When a spinning load presents a danger the operator should - Precise answer Use a tagline Parts of line means - Precise answer The number of lines running through the load block The load weight number given in a crane load chart indicator blank that the crane can safely lift - Precise answer Gross load

A sudden start or stop while operating a crane produces a - Precise answer Dynamic load What percent of a cranes rated capacity is it considered a critical lift - Precise answer 75% When using hand signals to direct a crane operator an extended arm with the thumb vertical and the fingers opening and closing into a first would indicate - Precise answer Raise the boom and lower load Who is responsible to sign and date the cranes daily log book when it is inspected - Precise answer Operator Which of these items would not be necessary to check before starting the engine of a crane - Precise answer Oil pressure gauge/////Oil going to read zero until the crane is running The boom swing in a crane stopped with what action - Precise answer Checking the swing lever in the opposite direction If a jib directed by not being used it is treated as a deduction from the cranes - Precise answer Gross capacity What are Jibbs based on - Precise answer Structural strength On the majority of conventional cranes the power is transferred to the torque converter by a - Precise answer Master clutch During disassembly of a long boom the Haag lines are connected at the maximum cantilever point and the boom is slightly lifted off the ground which pins are to be removed next - Precise answer Bottom pins a head of the cantilever point When using load charts what does the term jib angle to the ground refer to

• Precise answer Main boom angle minus the Jibbs offset A truck crane is rated at what percentage of its load capacity - Precise answer 85%

On a truck crane with The outriggers extended and set and tires touching the ground the operator should refer to what load chart - Precise answer On rubber chart When assembling a crane you can lift the boom sections by rigging the chokers around - Precise answer The pin sections Hoist line wire ropes must be discarded if there are broken wires in one strand - Precise answer 4////3 is allowed Standing wire ropes must be replaced if they have more than how many broken wires in one strand - Precise answer No more than two or one at an and connection Who is responsible for the on job training of the apprentice Oiler - Precise answer Operator The safety factor divided by breaking strength of a cable equals - Precise answer The safe working load When assembling a crane what precaution can be practiced to reduce strain on the boom - Precise answer Keep block on the ground until boom is at 30° A common practice to reduce boom torque is - Precise answer Reeve the lines symmetrically The effective weight of a stowed Jib is - Precise answer Less than the actual weight Which of the following conditions will dramatically change the values illustrated in the load chart - Precise answer Improper Outrigger set up Changing radius Wind gusts Jib back stay in forestay pendants should be - Precise answer Of equal length or the back stay pendants slightly longer Blocking may be placed under the tips of the tracks on a crawler crane to - Precise answer Increased ability over the front or rear

Before arriving at the job site with a crane and sure the cranes blank is adequate - Precise answer Set up location If a crane is set up out of level on the swing break is released what action should be expected - Precise answer The boom will swing to the low side increasing the radius An abrupt stop of a rapid swing on a long boom crane will produce what major affect - Precise answer Possible overturning the crane or collapsing the boom If Highwinds are expected and your lattice boom crane must be secured pointing into the wind and the hook - Precise answer secured to a solid structure directly below the boom point During handling where would you attach slings to lift lattice boom sections - Precise answer Top pin connection fittings on the main cords On a lattice boom truck crane you measure boom angle - Precise answer From the centerline of the loaded boom and the horizontal Manufacturer specifications permit only a certain amount of boom to be suspended our past the connection point of the pendant lines during assembly or disassembly of the boom the portion of the boom suspended in this manner is referred to - Precise answer Cantilever length When I lattice boom is being assembled or shortened it is extremely important to - Precise answer Drive out all pins from outside the boom A truck crane is operating with his outriggers fully extended and set does not have a fifth front Outrigger the operator should - Precise answer Referred to the manufactures working area diagram When I lattice boom crane properly set up on outriggers the tipping access is located at - Precise answer Point where the Outrigger pads touch the ground If the lattice boom truck crane is going to perform work over the front and must have - Precise answer A front mounted Outrigger