NCCCO Core Exam Questions and
correct answers
Which of the following is an accurate statement about luffing jibs?
It raises and lowers independent from the boom
What is the weakest quadrant of a boom truck?
Front
What effect would blocking up the ends of the tracks have on a crane?
It would increase capacity over the ends
The tipping axis of a crawler crane is?
It depends if the idler or sprocket are offset from track rollers
According to ASME B30.5 what percentage should not be exceeded on a mobile crane
during a load test?
100%
,From strongest to weakest put the following hitches in order
Basket, vertical, choker
Which of the following should synthetic slings not be used around?
Acid
How often should you inspect a running rope?
Daily
The radius on a crane chart refers to?
Center of rotation to center of gravity of the load or hook
What percentage is the manufacture rate of capacity of a mobile crane on outriggers?
85%
What percentage is the manufacture rated capacity of a rough terrain crane on
rubber?
75%
, What is Lay length?
The distance required for a strand to make a complete revolution around the rope
What is one problem lubricating wire rope can cause?
Obstructed view when inspecting the rope
What would What would call for a running rope to be taken out of service?
Six randomly distributed broken wires and one Lay or three in one strand and one lay
Which of these is known as a standing rope?
Pendant line
If you are at a radius below the bold line on a load chart, which does that mean?
Tipping, stability
To lift personnel, he must have an anti-two block on the crane?
True
correct answers
Which of the following is an accurate statement about luffing jibs?
It raises and lowers independent from the boom
What is the weakest quadrant of a boom truck?
Front
What effect would blocking up the ends of the tracks have on a crane?
It would increase capacity over the ends
The tipping axis of a crawler crane is?
It depends if the idler or sprocket are offset from track rollers
According to ASME B30.5 what percentage should not be exceeded on a mobile crane
during a load test?
100%
,From strongest to weakest put the following hitches in order
Basket, vertical, choker
Which of the following should synthetic slings not be used around?
Acid
How often should you inspect a running rope?
Daily
The radius on a crane chart refers to?
Center of rotation to center of gravity of the load or hook
What percentage is the manufacture rate of capacity of a mobile crane on outriggers?
85%
What percentage is the manufacture rated capacity of a rough terrain crane on
rubber?
75%
, What is Lay length?
The distance required for a strand to make a complete revolution around the rope
What is one problem lubricating wire rope can cause?
Obstructed view when inspecting the rope
What would What would call for a running rope to be taken out of service?
Six randomly distributed broken wires and one Lay or three in one strand and one lay
Which of these is known as a standing rope?
Pendant line
If you are at a radius below the bold line on a load chart, which does that mean?
Tipping, stability
To lift personnel, he must have an anti-two block on the crane?
True
