NCCCO Lattice Boom General Knowledge
Practice Exam With Questions And Correct
Answers!
The definition of cantilever of a lattice boom crane is; - ANSWER>>The boom
suspended past the pendant connections
What chart do you use when operating a crane on a barge; - ANSWER>>List chart
According to OSHA, Jibs must have a positive ________ from backwards
overturning - ANSWER>>Stop
Mobile cranes on barges shall be - ANSWER>>Physically attached to the barge
When a crane is properly barricaded, what is the clearance required all the way
around 360 degrees between the superstructure and the barricade when swung
360 degrees? - ANSWER>>2 feet
According to ASME B30.5 a fire extinguisher shall have a rating of __________
and shall be available at all operator's stations or cabs of the equipment. -
ANSWER>>10 BC or higher
When assembling a lattice boom crane the top pins of the boom sections should
be inserted; - ANSWER>>First
Block hoisting sheaves should have a minimum pitch diameter of at
least________ the rope diameter. - ANSWER>>16 times
, What is the correct method of checking the brakes of crane that has been already
assembled? - ANSWER>>Lift the load a few inches off the ground and apply the
brakes
A long boom crane working at minimum radius and 3 degrees out of level will
have a loss of capacity by; - ANSWER>>50%
Can rotation resistant rope be used with a swivel? - ANSWER>>If approved by the
rope's manufacture
When performing duty cycle operations, most manufactures require the crane's
load chart capacity to be reduced by; - ANSWER>>20%
Backward stability of a crane is tested with the crane configured; -
ANSWER>>Basic boom at maximum angle with no load
How many broken wires must be present in one strand of one lay for running wire
rope to be removed from service? - ANSWER>>3
On the majority of conventional cranes the power is transferred to a torque
converter by a; - ANSWER>>Master clutch
What is the maximum number of broken wires acceptable before a replacement
on a standing wire rope? - ANSWER>>2
What is the minimum design factor required for a right regular lay main boom
auxiliary hoist rope? - ANSWER>>3.5
The hoist drum shall have always at least _______ full wraps of rope on the drum.
- ANSWER>>2
Practice Exam With Questions And Correct
Answers!
The definition of cantilever of a lattice boom crane is; - ANSWER>>The boom
suspended past the pendant connections
What chart do you use when operating a crane on a barge; - ANSWER>>List chart
According to OSHA, Jibs must have a positive ________ from backwards
overturning - ANSWER>>Stop
Mobile cranes on barges shall be - ANSWER>>Physically attached to the barge
When a crane is properly barricaded, what is the clearance required all the way
around 360 degrees between the superstructure and the barricade when swung
360 degrees? - ANSWER>>2 feet
According to ASME B30.5 a fire extinguisher shall have a rating of __________
and shall be available at all operator's stations or cabs of the equipment. -
ANSWER>>10 BC or higher
When assembling a lattice boom crane the top pins of the boom sections should
be inserted; - ANSWER>>First
Block hoisting sheaves should have a minimum pitch diameter of at
least________ the rope diameter. - ANSWER>>16 times
, What is the correct method of checking the brakes of crane that has been already
assembled? - ANSWER>>Lift the load a few inches off the ground and apply the
brakes
A long boom crane working at minimum radius and 3 degrees out of level will
have a loss of capacity by; - ANSWER>>50%
Can rotation resistant rope be used with a swivel? - ANSWER>>If approved by the
rope's manufacture
When performing duty cycle operations, most manufactures require the crane's
load chart capacity to be reduced by; - ANSWER>>20%
Backward stability of a crane is tested with the crane configured; -
ANSWER>>Basic boom at maximum angle with no load
How many broken wires must be present in one strand of one lay for running wire
rope to be removed from service? - ANSWER>>3
On the majority of conventional cranes the power is transferred to a torque
converter by a; - ANSWER>>Master clutch
What is the maximum number of broken wires acceptable before a replacement
on a standing wire rope? - ANSWER>>2
What is the minimum design factor required for a right regular lay main boom
auxiliary hoist rope? - ANSWER>>3.5
The hoist drum shall have always at least _______ full wraps of rope on the drum.
- ANSWER>>2
