NCCCO 6 EXAM QUESTIONS AND
ANSWERS 2025
, What effect does the proper use of mats, blocking or cribbing, and outriggers or
crawlers have to the suitability of the supporting surface. - ANSWERSBetter distributes
and lessens loads on the supporting surface
Pre-operational inspections are necessary and required: - ANSWERSTo enhance
cranes safety by discovering discrepancies prior to operating
When assembling or dismantling lattice booms, it is safe to work under the boom: -
ANSWERSNone of the above
Why use mats or cribbing? - ANSWERSTo reduce ground pressure
When installing the boom pins, the pin should be pointing: - ANSWERSOut away from
boom center
The proper way to calibrate a boom angle indicator is: - ANSWERSUsing a level, raise
the boom to horizontal and set the indicator at 0 degrees.
. During disassembly of a long boom, the hog lines are connected at the maximum
cantilever
point and the boom is slightly lifted off the ground. Which pins are to be removed next? -
ANSWERSThe bottom pins ahead of the cantilever point
When assembling a crane you can lift the boom sections by rigging the chokers
around? - ANSWERSNone of the above
Where is the best location for leveling a crane? - ANSWERSUpperworks
During setup how do you determine machine clearances (counterweight, boom, and
outrigger)? - ANSWERSMeasure for correct distance
What is not a good location for crane setup? - ANSWERSAbove utilities
All hazards and potential problems should be discovered during the: - ANSWERSa.
Pre-lift site inspection
When setting up a crane in an area that has public access you should barricade: -
ANSWERSThe working radius
Blocking can be placed under the ends of tracks to: - ANSWERSincrease the crane's
stability when operating over front or back
ANSWERS 2025
, What effect does the proper use of mats, blocking or cribbing, and outriggers or
crawlers have to the suitability of the supporting surface. - ANSWERSBetter distributes
and lessens loads on the supporting surface
Pre-operational inspections are necessary and required: - ANSWERSTo enhance
cranes safety by discovering discrepancies prior to operating
When assembling or dismantling lattice booms, it is safe to work under the boom: -
ANSWERSNone of the above
Why use mats or cribbing? - ANSWERSTo reduce ground pressure
When installing the boom pins, the pin should be pointing: - ANSWERSOut away from
boom center
The proper way to calibrate a boom angle indicator is: - ANSWERSUsing a level, raise
the boom to horizontal and set the indicator at 0 degrees.
. During disassembly of a long boom, the hog lines are connected at the maximum
cantilever
point and the boom is slightly lifted off the ground. Which pins are to be removed next? -
ANSWERSThe bottom pins ahead of the cantilever point
When assembling a crane you can lift the boom sections by rigging the chokers
around? - ANSWERSNone of the above
Where is the best location for leveling a crane? - ANSWERSUpperworks
During setup how do you determine machine clearances (counterweight, boom, and
outrigger)? - ANSWERSMeasure for correct distance
What is not a good location for crane setup? - ANSWERSAbove utilities
All hazards and potential problems should be discovered during the: - ANSWERSa.
Pre-lift site inspection
When setting up a crane in an area that has public access you should barricade: -
ANSWERSThe working radius
Blocking can be placed under the ends of tracks to: - ANSWERSincrease the crane's
stability when operating over front or back
