2024/2025 LATEST MOBILE CRANE OPERATOR CORE
REVIEW QUESTIONS
Distribute over a larger area.: What is the purpose of placing mats or cribbing under
outrigger floats?
Upperworks.: Where is the best location for leveling a crane?
there is no weight of the crane bearing on any tires: Before leveling a mobile crane on
outriggers, an operator should ensure:
Operating a mobile crane with a long boom, on uneven ground, what sup- port condition
should be considered?: Keeping a 90° angle between cylinder rod and pad.
Operating a mobile crane with a long boom, on uneven ground, what sup- port condition
should be considered?: Keeping 90° angle between cylinder rod and pad.
When may blocking (cribbing) be placed under outrigger beams on mobile cranes?: Never
approved.
Mobile cranes should be level to within what percent of grade?: 1%
Timber crane mats work best when they are:: bolted together.
When arriving in the crane at the job site, the operator should first determine the condition
of the:: access roads.
What surface listed below would NOT be a good location for assembly or setup of a mobile
crane?: Above underground vaults.
Each outrigger pad and its blocking should be sufficient to support?: The total weight of
the crane and its load.
How does high wind affect a mobile crane with a long boom?: Introduces side load onto
the boom
When is the only time the outrigger beams should be less than fully extended?: The load
, 2024/2025 LATEST MOBILE CRANE OPERATOR CORE
REVIEW QUESTIONS
chart indicates that this is allowed.
What is the primary purpose for a rooster sheave or auxiliary boom point sheave?:
Separate the load hoist lines.
Eccentric main boom tip reeving causes which of the following:: twisting of the main boom
Which type of wire rope listed below is installed on most cranes?: Right regular lay.
The hoist drum flange shall extend a minimum of over the top layer of wire rope at
all times while crane is in operation.: 1/2 inch.
Which of the following is classified as a standing wire rope?: Pendant line.
When lifting on outriggers, the floats or pads should always be:: secured to the outriggers
cylinder.
How many randomly broken wires in a lay length must there be on a mobile cranes hoist
line, before it should be removed from service?: 6
What is the minimum design factor required for a right regular lay, boom or hoist wire
rope?: 3.5
On a mobile crane, how many broken wires are permitted at the end connection of a
pendant before it must be taken out of service?: 1
Type 1 rotation resistant hoist wire rope has a design factor of:: 5 to 1
It is important to know when lubricating crane hoist wire rope, that the lubricant must::
not hinder visual inspection.
How often is the competent person required to inspect the running wire ropes on a mobile
crane?: Each shift.
On mobile cranes, how many broken wires must be present in one strand of one lay for
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