NCCCO MOBILE CRANE EXAM 99 QUESTIONS AND VERIKFIED CORRECT ANSWERS ANSWERS GUARANTEED PASS

NCCCO MOBILE CRANE EXAM 99 QUESTIONS AND VERIKFIED CORRECT ANSWERS ANSWERS GUARANTEED PASS Under which circumstance does OSHA permits hoisting of personnel by crane? As long as the prevailing wind speed is less than 35 mph As long as there is no less hazardous or practicable way As long as all personnel have CPR training As long as no aerial work platform is available - b. Unless the manufacturer states otherwise, what crane capacity chart is appropriate when a crane is set up with 3 of its 4 outriggers extended and the fourth is retracted? On-outrigger chart On-rubber chart On-outrigger chart minus 20% On-rubber chart plus 20% - b. According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane's rated capacity?" 45% 50% 75% 85% - b. When is side loading of crane booms permitted? When the operator says it's OK So long as no jib is installed Only when the outriggers are fully extended Only with freely suspended loads - d. What is indicated if an operator makes two audible signals when moving a crane? He/she intends to stop He/she intends to back up He/she intends to go ahead He/she intends to stop (emergency) - c. When may blocking (cribbing) be placed under outrigger beams? When beams cannot be extended all the way out To increase capacity To improve stability Never - d. What is the result of placing timber blocking under the tips of the tracks on a crawler crane? Decreases the permitted capacity of the crane Makes the crane more stable Reduces the capacity of the crane Makes the crane less stable - b. According to ASME, what percentage of the manufacturer's crane rating must not be exceeded if a load test is done on a repaired crane? 110% 100% 85% 75% - b. Where is the tipping axis of a crawler crane located? It is always at the centerline of the idler or sprocket It depends if the idler or sprocket are in line or offset from the track rollers It is through the centerline of the crane cab It is through the boom butt section - b. What should be done with materials placed under overhead energized power lines? Be dragged out Be lifted as normal Not be lifted by crane Handled with extra care - c. What standard method hand signal is being illustrated? Boom up Boom down Retract boom Hoist - c. Where should the crane's outrigger pads or tracks be placed when working at ground floor level near a cellar wall? As close as possible to the wall At least as far back as the depth of the wall below ground At a distance at least half the depth of the cellar wall below ground d. Anywhere, since the wall is unaffected by the weight of the crane - b. How should the wheels of a crane be positioned when it is set up for working on outriggers? Just touching the ground As high as possible off the ground Just high enough off the ground to relieve the tires of crane weight d. Firmly on the ground to support the crane - c. What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? It increases It decreases by a third It remains the same It decreases by half - a. When may a swivel be used with rotation resistant wire rope? Always Never If the rope manufacturer approves If the operator decides it's OK - c. What should you do on pick and carry operations? Keep the boom as short as possible Keep the load as high above the ground as possible Ensure the load is as far from the carrier/carbody as possible Use maximum boom length - a. What boom position would cause the greatest ground pressure when lifting with crawler cranes? Over the right side Over the end Over the corner over the left side - c. Where should the hook be positioned when preparing to hoist a light load? Slightly to the