mobile crane operator

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37. Lifting accessories shall be proof-tested prior to use to ____ percent of their rated load.

  • A.100

  • B.110

  • C.125

  • D.150

38. Crane capacity charts used by cranes on barges are provided by ____.

  • A.load charts

  • B.list charts

  • C.tip charts

  • D.tip tables

39. In demolition work, ball weights should be limited to not more than what percent of capacity at the maximum radius?

  • A.15

  • B.25

  • C.50

  • D.75

40. In the event of heat damage, torch burns, or electric arc strikes, wire rope should be ____.

  • A.repaired


  • C.replaced

  • D.refined

41. Which of the following does not need to be marked on a sling?

  • or trademark of manufacturer

  • B.code or stock number

  • of manufacture

  • D.core material

42. According to ASME B30.5 rotation resistant rope must be replaced when there are how many broken wires in 30 rope diameters?

  • A.12

  • B.8

  • C.4

  • D.2

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