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Test Bank For NCCCO CORE EXAMination with
questions and answers 2024- 2025
Where is the best place for leveling - The Upper Works Capacity lost at 1 degree - 30% Capacity lost at 2 degrees - 41% Capacity lost by 3 degrees - 50% Option 1 when securing barge to crane - Physical attachment Option 2 when securing barge to crane - Corralling Option 3 when securing barge to crane - Rails Option 4 when securing barge to crane - Centerline cable system Option 1 for power line safety - De-energize and grounded AT THE SITE Option 2 for power line safety for lines 350kV or less - 20 ft clearance Options 2 for power line safety for lines above 350kV - 50 ft clearance Option 3 for power line safety - Table "A" When working near power lines, taglines must be - Non conductive How to reach maximum rated capacity - Maximum Boom Angle with Minimum Boom Length What is the first thing to look for when setting up a crane - Site access
Maximum allowable list and trim - Must not exceed the amount necessary to ensure that all deck surfaces are above water and that the entire bottom area of the barge is submerged How many degrees is the maximum allowable degree for List and Trim - 5 degrees A/D director - An individual who meets this subparts requirements for an A/D director, irrespective of the persons formal job title or whether the person is non management or management personnel A/D director Must.. - Meet the criteria for both "Competent Person" and a "Qualified Person" who understands the assembly and disassembly procedures When removing pins, employees must not be under the Boom, jib, or other components EXCEPT - where the employer demonstrates that site constraints require one or more employees to be under the Boom when pins are being removed. Should pins pins in the pendants be removed under tension - No When should you not remove pins from the boom - When it's being supported by the UPPERmost boom section resting on the ground How should riggers be placed when assembling or disassembling - Fully extended or if manufacture permits, deployed as specified in the load chart During assembly or disassembly, the rigging work must be done by a - Qualified rigger synthetic slings must be protected from what - Abrasive, sharp or acute edges, etc What can never be used to protect slings - Cardboard The order of boom sections should be.. - SHORT to LONG On crawler or truck cranes, where should assembly or disassembly be done - Over the quadrant of maximum stability According to OSHA 1926.1404, when setting up a crane the Outriggers MUST... - be set to remove machine weight from the wheels
What is the most common wire rope used on cranes - Right regular lay When lifting off the main boom, how is the effective weight of the jib different in the erected position from that of the stowed position? - Effective weight increases Who must determine maximum speed for a mobile crane to travel with a suspended load? - The competent person How does the effective weight of a stowed extension relate to the actual weight of the extension? - Lower than the actual weight Using a telescopic mobile crane and lifting off the jib with the main boom partially extended, you should use __________________ to determine gross capacity. - Boom Angle If not listed in the load capacity chart or notes for a telescopic boom crane and you are in between boom lengths, you should? - Use the lowest shorter or longer Which of the following is required to be on a mobile telescopic boom crane in order to lift a personnel platform? - Boom length indicator When operating a rough terrain crane and extending the outrigger beams from the upper cab, you should? - Make visual contact with beam and jack When a mobile cranes telescopic boom sections are required to be extended equally and they are not, the effect could be which if the following? - Damage to the longest extended section What item listed below can be removed from a carry deck mobile crane, and continue to be operational? - Jib/fly/extension What is the primary reason for lifting off a boom extension mounted on a mobile telescopic boom crane? - Increase height Traveling a rear engine mounted rough terrain mobile crane, with a suspended load where should you position the load? - Over the front quadrant A telescopic mobile crane is equipped with an anti two-block lock-out device. When the device is activated which functions will be disabled? - Hoist, extend, and lower the boom
What device below is NOT required on telescopic boom mobile cranes manufactured today? - Swing Path Monitor Backward stability on a rough terrain mobile crane could be a problem when configured in which situation listed below? - Over the side at a minimum radius A telescopic boom mobile crane is going to lift a personnel platform, what is required from the list below to be operational on the crane? - Controlled load lowering Which boom configuration can cause the most hazardous boom side load condition? - Long boom with minimum radius According to OSHA when is it safe to hoist loads with a mobile crane below energized power lines? - If fully extended boom can't reach the prohibited zone A crane loses stability when its leverage on the load is? - Less than the loads leverage on the crane What is the design factor required when using non rotating wire rope SLINGS and lifting personnel in a platform suspended from a mobile crane? - 10 When making a lift on outriggers, the maximum ground bearing pressure occurs in which boom position? - Over the corner A mobile cranes jib is offset at 15 degrees versus its original 30 degree offset, but the boom Angle remains unchanged. In this situation, the load radius would?
- Decrease When a telescopic boom extension is offset from the main boom, the cranes capacity normally will be? - Reduced On mobile cranes the boom Angle indicator indicates what to the operator? - Angle of boom to horizontal TT 345-750V - 16ft TT TA 500-750V - 35ft TA TT 50-345V - 10ft TT TA 750-1000V - 45ft TA TA 50-200V - 15ft TA
Rated capacity of Angle of choke 90- 120 - 87 Rated capacity of Angle of choke 60- 89 - 74 Rated capacity of Angle of choke 30- 59 - 62 Rated capacity of Angle of choke 0- 29 - 49 What is the OSHA standard that covers the construction industry? - CFR
What is the ASME/ANSI standard for mobile cranes - B30. Inspections every shift - By a competent person and no document needed Monthly inspection - Competent person documented for 3 months Annual inspection - Qualified person documented for a year When should taglines be used - When load is dangerous When hoisting personnel, within what percentage of level must a telescopic boom need to be at - 1% What do you do if a crane has been energized but no sign of fire exists - Stay in cab until de-energized Net capacity of cranes main boom - Capacity listed in load chart minus rigging and all attachments What area do truck cranes without a 5th outrigger have no lifting capacity - Over the Front Definition of operating radius - Distance from center of rotation to center of gravity of the load Which Quadrant are rough terrain crane capacities greater - Over the front From which 2 points should the boom be measured - Boom hinge pins to center of boom tip sheeve Which quadrant are truck crane capacities greater - Over the rear
Which accessible area of an operating crane must always be barricaded - Swing radius of superstructure When does OSHA permit hoisting personnel by crane - When there is no less hazardous or practicable way While hoisting personnel total load must not exceed what percentage of crane capacity - 50% When is side loading of crane booms permitted - Only with freely suspended loads Placing timber blocking under tips of tracks on crawler crane does what - More stability According to ASME, what percentage of the manufacturers crane rating must not be exceeded if a load test is done on a repaired crane - 100% Where is the tipping axis of a crawler crane located - Depends on idler or sprocket What to do with materials under energized power lines - Never be lifted by crane Where should outrigger pads be placed when working at ground floor level near a CELLAR WALL - At least as far back as the depth of the wall below ground What happens to ground bearing pressure if you move a crawler crane from soft to hard ground - Stays the same When may a swivel be used with rotation resistant wire rope - If manufacture approves What should you do on pick and carry operations - Keep boom length as short as possible What boom position would cause the greatest ground pressure when lifting with crawler cranes - Over the corner How many parts of line are required to hoist a 36,500 lb. load of the maximum allowable line pull is 9,000 lbs - 5 What determines the amount of deduction required for an erected jib that is not being used - The effective weight of the jib
Definition Anti two-block device - A device that, when activated, disengages All crane functions whose movement can cause two-blocking Definition IWRC - Independent Wire Rope Core Definition line pull - The amount of weight a drum will hoist for a given layer Definition load block position - Positioned directly above the load center of gravity ASME B30.5 Physical Examination Requirements - Every 3 years Definition of DRIFT - A condition that occurs when the load continues to move after the crane or crane boom has stopped. Crane functions that cause increased radius - Extending the boom, booming down, rapid swing, booming down rapidly and boom deflection Crane functions that cause two-blocking - Extending the boom, booming down, hoisting What is boom deflection - Created when a load is applied to the crane, and slightly bends Definition Dynamic loading - Occurs when the dynamic motion of the load dramatically increases the amount of stress applied to a crane Definition Dynamic Unloading - Occurs when the load applied to the crane during lifting operations is suddenly released Definition of side loading - Caused by lifting a lid without the boom tip completely centered over the top of the load, rapid swinging, stopping of the swing Definition of rated capacity - The maximum allowable load that can be applied to a crane at a given radius Which regulation governs the lifting of personnel - OSHA 1926. Backward stability of a mobile crane is tested in which configuration listed below? - Basic boom at maximum angle with no load
On mobile cranes operating with outriggers retracted, the least stable position is when the boom is directly over the? - Side When a rough terrain crane is working on tires, backward tipping is most likely to occur when lifting which configuration? - Side quadrant at a short radius When traveling a rough terrain mo Ike crane with a suspended load, which of the following is the most important consideration? - Boom low as possible with the load close to the surface. When retracting the boom on a telescopic mobile crane, the hook block and load will move in what direction? - Down Rough terrain mobile crane capacities are generally greater over the? - Front Mobile crane capacities are generally greater over the? - Rear What is the hand signal guy communicating to the operator if he is facing the load with his arms extend at should length in front of his body with his hands facing up and palms facing the operator? - Wheel Travel You're setting your crane up in a confined area and you cannot fully extend your fourth outrigger. Your crane does not have a load chart for a intermediate extension working. In such a situation you should ya the capacities in the? - On- rubber load chart How many RANDOMLY distributed broken wires in rotation-resistant rope are cause for replacement? - 2 broken wires in 6 rope diameters Which is the most common cause of death to crane operators? - Crane turnover Unless the manufacturer states otherwise, a truck crane generally have no lifting capacity over which area? - The front Truck crane capacities are usually greater over the? - Rear A truck crane is set up on outriggers. The load chart governed by stability is based on what percentage of the cranes capacity? - 85% A crane is set up with 3 of its 4 outriggers fully extended and the fourth retracted. Unless the manufacture states otherwise, the capacity of the crane in this configuration will be found in the? - On-Rubber chart
