NCCCO Core Exam Prep

NCCCO Core Exam Prep ( / Update) Questions and Answers What action does a signal person intend the operator to perform if he extends his arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? - ANSWER Boom up When hoisting personnel, within what percentage of level must a telescopic boom crane be in order for the gross ratings in the load chart to remain valid? - ANSWER 1% The load line of the crane you're operating contacts an energized power line. There's no sign of any other danger, such as fire. What should you do? - ANSWER Stay in the cab until the lines are de- energized According to OSHA 1926.1413, how many randomly distributed broken wires in rotation-resistant rope are cause for replacement of the rope? - ANSWER 2 broken wires in 6 rope diameters What is the net capacity of a crane on main boom unless the manufacturer states otherwise? - ANSWER The capacity 1 / 2

listed in the load chart minus the weight of the rigging and all attachments What may happen to a properly rigged load when lifted off the ground unless the operator takes account of boom deflection? - ANSWER It could swing out away from the crane What Standard Method hand signal is being illust ? - ANSWER Swing Who should an operator respond to a "stop" signal from? - ANSWER Anyone Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? - ANSWER The fron What is the definition of "operating radius?" - ANSWER The distance from the center of rotation of the crane to the center of gravity of the load

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