CCO 4

  1. Jib offset is the jib angle to the
    Boom
  2. All Hazards and problems that are found on the worksite should be identified
    At the pre-operational worksite inspection
  3. Which of the following OSHA regulations govern suspended personnel platforms
    OSHA 1926.550(g)
  4. According to ASME B30.5 the prohibited zone for powerlines that are 60kV is
    15ft
  5. What percentage of gross capacity is used when lifting with more than one crane
    75%
  6. You are required to pass a physical exam every how many years according to ASME b30.5
    3 Years
  7. How many broken wires at an end socket of a standing wire rope are allowed before the rope must be replaced
    1
  8. When operating a mobile crane, you inspect you running wire rope at least
    Daily
  9. When lifting a load with more than one crane, it is important to
    Keep the hoist lines of both cranes vertical
  10. Rotation resistant wire rope has a design factor of
    5 to 1
  11. Line pull is
    The amount of weight a drum will hoist for a given layer
  12. Boom length is
    Center of the foot pins to the center of the head sheave pins
  13. The weight of the stowed jib used in the load calculation is
    Effective weight
  14. A cranes rated capacity is based on
    Structural and stability
  15. When lifting a suspended personnel platform the safety factor for the rigging hardware is
    5 times the intended load
  16. If using cranes of different rated capacities, the crane with the larger rated capacity
    Should be hooked a distance closer to the loads center of gravity
  17. Hoist ropes that are not rotation resistant must have a design factor of
    3.5 to 1
  18. Backward stability on R/T crane could be a problem with the crane is working
    Over the side at minimum radius
  19. It is important to inspect rotation resistant wire rope more frequently because
    Internal damage will occur more frequently
  20. It is important to know when lubricating wire rope, that the lubricant must
    Not hinder visual inspection
  21. Breaking strength divided by the design factor equals
    Safe Working Load
  22. Electrocution occurs when
    Crane is in contact with powerlines and personnel are in contact with the crane and ground
  23. If determining boom tip elevation is important the best way to determine this is to
    Use range diagram
  24. When determining what position to dog the machine over night and high winds are expected
    Follow the manufacturers recommendations
  25. When crane is in transit and you are required to pass under 50kV powerlines what is OSHA's minimum required clearance
    4 feet
  26. Timber mats work best when they are
    Bolted together
  27. The only time an employer may use a suspended personnel platform is when
    There is no safer way
  28. What is the greatest cause of ground personnel deaths
    Electrocution
  29. When lifting a suspended personnel platform the crane must be de-rated by
    50%
  30. Boom deflection will
    Increase load radius
  31. Increasing the distance from the cranes center of gravity and the tipping axis will
    Increase stability
  32. The effect of a loads leverage being greater than the cranes leverage is
    Instability
  33. Blocking under the outrigger pads/ float shall be
    Sufficient to support the crane and the load
  34. With a pick and carry operation, the rated tipping capacity is based on what percentage of the total tipping capacity
    75%
  35. All telescopic boom cranes must be equipped with
    Boom angle indicators
  36. A cranes ground pressure can approach a weight that is
    100% of the weight of the crane and the suspended load
  37. Operating a crane with a long boom, on uneven ground, you should
    Block under the pad and keep a 90 degree angle between the cylinder rod and the pad
  38. On a hydraulic truck crane that has all five outriggers properly positioned on firm supporting surfaces, the working area diagram from the load capacity chart will indicate that the "over the front" area is
    Different depending on the cranes manufacturers definitions and determination
  39. An operator performing a pick and carry operation with a rough terrain crane should keep the load
    Positioned over the front of the carrier
  40. When a cranes hydraulic boom sections are required to be extended equally and they are not the
    Longest section can be damaged
  41. A telescopic crane is going to lift a personnel platform, what is required
    Boom length indicator
  42. Before making a near capacity lift with a crane, the operator must
    Test the hoist brakes by lifting the load a few inches and holding it
  43. A stationary load is
    Static
  44. When operating a R/T and extending the outriggers from the upper you should
    Make visual contact or post a signal person
  45. The effective weight of the fly/ jib when erected from the stowed position
    Increases
  46. When swinging the load of any crane on crawlers, it will exert the most ground pressure over the
    Corner
  47. How does the effective weight of the stowed job/ extension relate to the actual weight of the jib/ extension
    Lower than the actual weight
  48. When testing a man basket the operator must load the basket to 125% of its rated capacity and hold it for
    5 minutes
  49. The ASME volume for slings is
    B30.9
  50. When operating a crane on a barge the list chart must be provided by
    The manufacturer
Author
codysd1
ID
358456
Card Set
CCO 4
Description
Updated