NCCCO Core exam Questions And
Correct Answers
The term "Superstructure or Upper works" refers to the area of the crane:
Above the swing circle
A crane must be level within _______% for the load chart ratings to be valid?
1%
On what principle is crane stability based?
Leverage
What would be the effect of moving the tipping axis closer to the cranes center of
gravity?
Reduced stability
Which of the following matches the appropriate load chart to a particular crane?
Serial number
,A durable rating chart with legible letters and figures shall be provided with each
crane accessible to:
The operator at the controls
The lifting capacities listed in the load chart assume that:
The lift is to be performed under ideal conditions
A "rough terrain" crane set up on outriggers that is based on 85% tipping should have
the tires:
Off the supporting surface
Load charts are based on stationary loads, which are also known as:
Static loads
The capacity in a mobile crane's load chart are based on either structural limits or
Stability
The values listed in the manufacture's load chart show:
Rated capacities
, Net capacity is:
Manufactures load ratings minus capacity deductions
When determining the "gross load" the best method is:
Get an accurate load weight and add the rigging
The weights of load handling devices, such as load blocks, spreader bars, and slings are
considered:
Part of the load
Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net capacity?
2,678 lbs.
Boom length is measured from the:
Center of the heel pin(s) to the center of the boom tip sheaves
The boom angle indicator indicates the booms angle to the:
Correct Answers
The term "Superstructure or Upper works" refers to the area of the crane:
Above the swing circle
A crane must be level within _______% for the load chart ratings to be valid?
1%
On what principle is crane stability based?
Leverage
What would be the effect of moving the tipping axis closer to the cranes center of
gravity?
Reduced stability
Which of the following matches the appropriate load chart to a particular crane?
Serial number
,A durable rating chart with legible letters and figures shall be provided with each
crane accessible to:
The operator at the controls
The lifting capacities listed in the load chart assume that:
The lift is to be performed under ideal conditions
A "rough terrain" crane set up on outriggers that is based on 85% tipping should have
the tires:
Off the supporting surface
Load charts are based on stationary loads, which are also known as:
Static loads
The capacity in a mobile crane's load chart are based on either structural limits or
Stability
The values listed in the manufacture's load chart show:
Rated capacities
, Net capacity is:
Manufactures load ratings minus capacity deductions
When determining the "gross load" the best method is:
Get an accurate load weight and add the rigging
The weights of load handling devices, such as load blocks, spreader bars, and slings are
considered:
Part of the load
Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net capacity?
2,678 lbs.
Boom length is measured from the:
Center of the heel pin(s) to the center of the boom tip sheaves
The boom angle indicator indicates the booms angle to the:
