Lattice Boom Crane Review Questions | Latest Update | 2024/2025 | Graded A+

Lattice Boom Crane Review Questions | Latest Update | 2024/2025 | Graded A+ 10 design factor required when using rotations resistant wire rope slings and lifting personnel in a platform suspended from a mobile crane A crane loses stability when its leverage on the load is...? less than the load's leverage on the crane A LBTC with outriggers properly set, is rated at what percentage of its tipping capacity? 85% A mobile crane's jib offset at 15 degrees versus its original 30 degrees offset, bu the boom angle remains unchanged. In this situation, the load radius would.....? decrease A mobile crawler crane is on a barge, what item is important to check? Crane is secured to barge A pin-connected lattice boom is being dismantled. After connecting the equalizer(bridle) to the connecting lugs on the boom butt, which boom connecting pins should be removed first? Lower connection pins, located ahead of the equalizer According to OSHA, when is it safe to hoist loads with a LBC below energized power lines? when the boom in a true vertical position cant reach the prohibited zone Approved blocking placed under the tips of the tracks on mobile crawler cranes will...? increase crane's stability Backward stability of a mobile crane is tested in which configuration? Basic boom at maximum angle with no load Boom hoist limiting device the device that stops the boom when it nears the cranes maximum angle Booms being assemble/disassemble on the ground with/without support of the boom harness should be? securely blocked to prevent dropping the boom and boom sections Cantilever Lenght Amount of lattice boom to be suspended out past the connection point of the pendants during assembly/disassembly of the boom. How many broken wires are permitted at the end connection of a standing pendant line before it must be taken out of service? 1 Jib Offset jib angle to the broom LBCC manufactured after 11/8/2011 must have...? outrigger position monitor Master Clutch Majority of the friction style mobile cranes the power is transferred to the torque converter via master clutch On a LBTC with the outriggers extended and set, and wheels still bearing machine weight, the operator should refer to the...? rubber chart On lattice boom cranes with power load lowering mounted on the hoist, a heavy load should be lowered by; Power load lowering feature and the foot brake On LBTC operating retracted, the least stable position is when the boom is directly over the...? Side The main boom length is measured from