CCO WRITTEN CORE STUDY GUIDE WITH ALL CORRECT
& 100% VERIFIED ANSWERS|ACTUAL EXAM|ALREADY
GRADED A+
what is the purpose of Mats or cribbing under outrigger floats ✔Correct answer-distribute the
force over a larger area
where is the best location to level a crane ✔Correct answer-upper works
Before leveling a mobile Crane on out riggers and operator should ensure ✔Correct answer-There
is no weight of the Crane bearing on any tires
Parading a mobile Crane with a long boom on uneven ground what support conditions should be
considered ✔Correct answer-Keeping a 90 ﾟ angle between cylinder rod and pad
One may blocking or cribbing be placed under outrigger beams on mobile cranes ✔Correct
answer-Never approved
Mobile cranes should be level to within what percent of grade ✔Correct answer-One percent
Timber Crane mats work best when they are ✔Correct answer-Bolted together
When arriving in the Crane at the job site the operator should 1st determine the condition of
✔Correct answer-Access roads
White surface listed below would not be a good location for assembly or set up of a mobile Crane
✔Correct answer-Above underground vaults
Each outrigger pad and it's blocking should be sufficient to support ✔Correct answer-The total
weight of the Crane and its load
How does high wind effect a mobile Crane with a long Boom ✔Correct answer-Introduces side load
on to the boom
What is the only time the out rigger beam should be less than fully extended ✔Correct answer-The
load chart indicates that this is allowed
What is the primary purpose for rooster sheave or auxiliary boom point sheave ✔Correct answer-
To separate the load hoist lines
Eccentric main boom tip reaving causes which of the following ✔Correct answer-Twisting of the
main boom
Which type of wire rope listed below is installed on most mobile cranes ✔Correct answer-right
regular leg
The Hoist drum flange shall extend a minimum of what distance over the top layer of wire rope at all
times while Crane is in operation ✔Correct answer-1/2 inch
, Which of the following is classified has standing wire rope ✔Correct answer-Pendant lines
When lifting on outriggers to floats or pads should Always be ✔Correct answer-Secured to the out
rigger cylinders
How many randomly broken wires in a lay length must there be on a mobile Crane hoist line before it
should be removed from service ✔Correct answer-Six
What is the minimum design factor required for a write regular lay boom or hoist wire ✔Correct
answer-3.5
On a mobile Crane how many broken wires are permitted at the end connection of a pennant line
before it must be taken out of service ✔Correct answer-1
Type one rotation resistant coyest wire rope has a design factor of ✔Correct answer-5 to 1
It is important to know when lubricating Crane hoists wire rope that the lubricant must ✔Correct
answer-Not hinder a visual inspection
How often is the competent person required to inspect the running wire rope on a mobile
✔Correct answer-Each shift
On mobile cranes how many broken wires must be present and one strand of One Ley for running
wire rope to be removed from service ✔Correct answer-Three
How many randomly distributed broken wires in a rotation resistant hoist wire rope are considered
For replacement ✔Correct answer-2 broken wires in 6 rope diameters
According to osha what is the minimum number of full wraps of wire rope that Must remain on hoist
drums in all service conditions ✔Correct answer-2
On whose recommendations should a mobile Crane preventative maintenance program be
developed ✔Correct answer-Crane manufacturer
On a mobile Crane the measurement for a load radius is the distance from the center of gravity of
the suspended load to the ✔Correct answer-Center of rotation of the Crane
On a mobile Crane should load the applied when determining the proper boom angle ✔Correct
answer-Yes
On mobile cranes range diagram boom length and boom angle can be used to determine ✔Correct
answer-Load radius
On a mobile Crane what is the weight of the stowed jib that is deducted in load chart calculations
called ✔Correct answer-Effective weight
When determining boom tip elevation for a mobile Crane the user could ✔Correct answer-Use the
range diagram
& 100% VERIFIED ANSWERS|ACTUAL EXAM|ALREADY
GRADED A+
what is the purpose of Mats or cribbing under outrigger floats ✔Correct answer-distribute the
force over a larger area
where is the best location to level a crane ✔Correct answer-upper works
Before leveling a mobile Crane on out riggers and operator should ensure ✔Correct answer-There
is no weight of the Crane bearing on any tires
Parading a mobile Crane with a long boom on uneven ground what support conditions should be
considered ✔Correct answer-Keeping a 90 ﾟ angle between cylinder rod and pad
One may blocking or cribbing be placed under outrigger beams on mobile cranes ✔Correct
answer-Never approved
Mobile cranes should be level to within what percent of grade ✔Correct answer-One percent
Timber Crane mats work best when they are ✔Correct answer-Bolted together
When arriving in the Crane at the job site the operator should 1st determine the condition of
✔Correct answer-Access roads
White surface listed below would not be a good location for assembly or set up of a mobile Crane
✔Correct answer-Above underground vaults
Each outrigger pad and it's blocking should be sufficient to support ✔Correct answer-The total
weight of the Crane and its load
How does high wind effect a mobile Crane with a long Boom ✔Correct answer-Introduces side load
on to the boom
What is the only time the out rigger beam should be less than fully extended ✔Correct answer-The
load chart indicates that this is allowed
What is the primary purpose for rooster sheave or auxiliary boom point sheave ✔Correct answer-
To separate the load hoist lines
Eccentric main boom tip reaving causes which of the following ✔Correct answer-Twisting of the
main boom
Which type of wire rope listed below is installed on most mobile cranes ✔Correct answer-right
regular leg
The Hoist drum flange shall extend a minimum of what distance over the top layer of wire rope at all
times while Crane is in operation ✔Correct answer-1/2 inch
, Which of the following is classified has standing wire rope ✔Correct answer-Pendant lines
When lifting on outriggers to floats or pads should Always be ✔Correct answer-Secured to the out
rigger cylinders
How many randomly broken wires in a lay length must there be on a mobile Crane hoist line before it
should be removed from service ✔Correct answer-Six
What is the minimum design factor required for a write regular lay boom or hoist wire ✔Correct
answer-3.5
On a mobile Crane how many broken wires are permitted at the end connection of a pennant line
before it must be taken out of service ✔Correct answer-1
Type one rotation resistant coyest wire rope has a design factor of ✔Correct answer-5 to 1
It is important to know when lubricating Crane hoists wire rope that the lubricant must ✔Correct
answer-Not hinder a visual inspection
How often is the competent person required to inspect the running wire rope on a mobile
✔Correct answer-Each shift
On mobile cranes how many broken wires must be present and one strand of One Ley for running
wire rope to be removed from service ✔Correct answer-Three
How many randomly distributed broken wires in a rotation resistant hoist wire rope are considered
For replacement ✔Correct answer-2 broken wires in 6 rope diameters
According to osha what is the minimum number of full wraps of wire rope that Must remain on hoist
drums in all service conditions ✔Correct answer-2
On whose recommendations should a mobile Crane preventative maintenance program be
developed ✔Correct answer-Crane manufacturer
On a mobile Crane the measurement for a load radius is the distance from the center of gravity of
the suspended load to the ✔Correct answer-Center of rotation of the Crane
On a mobile Crane should load the applied when determining the proper boom angle ✔Correct
answer-Yes
On mobile cranes range diagram boom length and boom angle can be used to determine ✔Correct
answer-Load radius
On a mobile Crane what is the weight of the stowed jib that is deducted in load chart calculations
called ✔Correct answer-Effective weight
When determining boom tip elevation for a mobile Crane the user could ✔Correct answer-Use the
range diagram
