CCO Questions 2024 update

CCO Questions 2024 update post a signal person to check clearance - ANSWER-what is the first thing an operator should do before going under a low pipe rack? power load-lowering feature and the foot brake - ANSWER-On lattice boom cranes fitted with power load lowering, a heavy load should be lowered by using the: 1/2 inch - ANSWER-the drum flange shall extend a minimum of ___ over the top layer of rope at all times 1% - ANSWER-when lifting personnel, cranes must be level to within _______% grade. 10 - ANSWER-What is the safety factor required when using non rotating wire rope and lifting personnel in a man basket? 10 degrees - ANSWER-crane hooks must not be twisted in excess of: 10 ft - ANSWER-What is the minimum allowable distance from the crane and power lines 50kV in table A? 10 ft - ANSWER-When assembling a lattice boom on most crawler cranes using inserts of different lengths, which insert generally should be closest to the boom foot? 10 ft. - ANSWER-when crane is in transit and you are required to pass under power lines that are 51kV. What is OSHA's minimum required clearance? 100% of the weight of the crane and the suspended load - ANSWER-a crane's ground pressure can approach a weight that is: 110% - ANSWER-test loads shall not exceed _____ of manufacturers load ratings 15 ft. - ANSWER-according to ASME B30.5 the prohibited zone for working near power lines that are 60 kV, is: 15,100 - ANSWER-the jib capacity is 8 tons and the ball weight 900 lbs. what is the heaviest load that can be lifted safety? 15% of its original size - ANSWER-a crane hooks throat open must not exceed: 2 - ANSWER-OSHA requires you to always have at least how many wraps on a hoist drum? 2 - ANSWER-what is the maximum number of broken wires acceptable before replacement on a standing wire rope? 20 mph - ANSWER-According to ANSI B30.23 personnel platform lifts should not be made with wind in excess of: 20,000 lbs. - ANSWER-a lattice boom truck crane with a 120 ft. boom will be operating at a 42 ft. radius. the load chart shows an entry indicating 25,000 lbs at a 40 ft. radius, followed immediately by an entry listing 20,000 lbs at a 45 ft. radius. what is the crane;s capacity at the 42 ft. radius? 3 - ANSWER-How many broken wires must be present in one strand of one lay running wire rope to be removed from service?