NCCCO CORE PRACTICE QUIZ WITH VERIFIED SOLUTIONS ALREADY GRADED A+.

what is important for the operator to do when extwnding the outriggers make visual contact or post a signalperson what is the minimum swing clearance required between the crane counterweight and any obstacle 2ft of 360 degree rotation what function do axle lockouts (osicillation locks) perform on a rough terrain crane ? locks the rear axle and prevents oscillation what should be primary cocern of an operator when setting up a crane on construction site with newly constructerd buildings site compaction what is the the purpose of placing mats or cribbing under outriggers floats to distribute the force when on soft ground what can happen as a result of the vibrations caused a working crane underground utilities may collapse what should be avoided when setting up crane for work any area near a trench what is the purpose of placing the timber blocking under the ends of the crawler tracks make the crane more stable when may blocking be placed under the outriggers beams blocking is never to be placed under beams when lifting with crawler crane how can groudn bearing pressure be reduced lift over the side when working aroud energized high voltage power lines an operator should never allow anyone standing on the ground to touch the crane when a law requires a crane to be equipped with cage-type boom guards insulating limks and or proximity warning devices the crane may handle loadsunder power lines without additional personnel aid where shall signs be installed warning that electrocution or serious bodily injury may occur unless minimum clerance are maintained between the crane or the load being hauled and energized power lines at the operator station and outside the crane which of the foolowing should be considered first during site preparation and planning satisfactory access roads when should all potential site hazards be discovered during planning and site inspection a crane's operating location must be wll clear of trenches and burried utilities according to OSHA, which is the minimum clearnace required for a crane in transit when passing under 50kv power lines 6 feet what conditions may required an operator to increasee clearance between the crane and energized power lines while in transit with no load environmental conditions which of the following lifts would required a lift review with site supervisior when two or more pieces of lifiting equipment are required to work in unison what is one way to ensure pededestrian traffic does not interfere with crane operations block off public access if a crane is provided with a foot pedal brake lock, the operator has thr freedom to allow the legs to relaxwhile keeping feet on the brake pedal if the operator must leave an energized crane, what is critical to hishers survival dont step accross the gradient lines according to OSHA what rea of the crane must be barricated accessible area within the swing radius of the rear of the rotating superstructures of the crane what happens when an out of level crane swings a load from the high side to the low side radius will increase what is the audible signal to indicate the operator is backing up the crane three short audible signals when leaving a lattice boom crane overnight you should engage the swing lock what is the best way to determine what load weights certifed weight ticket what is important to remember when using slings at angels when the horizontal angle decreases the load on the sligs increases if the boom angle indicator shows an angel not matching the load chart the value used (lower angel= less capacity) never lower number if the load sharing distribution of a two crane lift is to reamin constantboth carnes must lift and lower in unison