NCCCO Tower Crane Test (New 2023/ 2024 Update) Questions and Verified Answers| Graded A| 100% Correct

NCCCO Tower Crane Test (New 2023/ 2024
Update) Questions and Verified Answers|
Graded A| 100% Correct

QUESTION
According to AMSE B30.3 an overhead powerline is ALWAYS considered to be:


Answer:
Energized until the power company has verified it is not energized



QUESTION
High tensile bolts shall be marked with manufacturers designation and:


Answer:
Strength rating



QUESTION
Bolt connections for tower sections must use high tensile strength nuts with ratings of:


Answer:
12



QUESTION
Washers used in high tensile bolt connections shall be marked with:


Answer:
HV

,QUESTION
Before installation high tensile bolt connection Components shall be cleaned and visually
examined for:


Answer:
Damage and corrosion



QUESTION
When ready to torque the nut on a high tensile bolt connection you should:


Answer:
Lubricate threads



QUESTION
During tightening of high tensile connections the bolt is stretched to a specific percentage of its
elastic limit at the correct:


Answer:
Torque



QUESTION
Preferably the tightening torque shall be applied to the:


Answer:
Nut



QUESTION
The tightening torque values placed on the nuts and bolts of high tensile bolt connection are
dependent on the:


Answer:
Type and size

,QUESTION
What components of a tower crane are connected with high tensile bolt connections?


Answer:
Foundation anchors, tower sections, slewing ring support



QUESTION
When the Tower base bolts are torqued the counter jib should be positioned:


Answer:
0° from the bolt



QUESTION
According to the NCCCO tower crane reference manual what items below should be part of the
operators Daily pre-check?


Answer:
Wire ropes, limit switches



QUESTION
According to the NCCCO tower crane reference manual, how many safety turns (wraps) must
be left on the hoist drum when the load hook is in its lowest position?


Answer:
3



QUESTION
According to the NCCCO tower crane reference manual,when possible, installing the hoist wire
rope on a tower crane you should wind the rope with approximately how much of the maximum
permissible load?

, Answer:
10%



QUESTION
According to ASME B30.3, what is the design factor for rotation resistant load hoist wire rope?


Answer:
5.0 to 1



QUESTION
Who determines the correct hoist wire rope to be installed on tower cranes?


Answer:
Manufacturer



QUESTION
What grade alloy steel chain should be used for crane hoisting slings?


Answer:
80



QUESTION
According to ASME B30.3, using rotation resistant running rope on a tower crane, how many
broken wires in six rope diameters can you have to leave it in service?


Answer:
1



QUESTION