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NCCCO Tower Crane Actual Exam 100% Questions and Answers 2025.
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NCCCO Tower Crane Actual Exam 100% Questions and Answers 2025.
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NCCCO Tower Crane Actual Exam 100 Questions and Answers 2025.How many broken wires must be present in one stand on one lay for running wire rope to be removed
from service - ANSWER-4 ASME 3-2.4.3(b)(1)
What is the maximum permitted wind speed when climbing a tower - ANSWER-20mph ASME 3-1.1.5(i)
According to ASME B30.3 a crane should be plumbed to - ANSWER-1 to 500 ASME 3-1.1.5(g)
According to ASME B30.3 the rated load under static conditions shall not exceed
of calculated tipping loads - ANSWER-63% ASME 3-1.2.1(a)
According to ASME B30.3 an overhead power line is ALWAYS considered to be - ANSWER-Energized until
the power company has verified it is not energized
High Tensile bolts should be marked with manufacturers designation and - ANSWER-Strength rating
TCCM Bolting 4-4
Bolt connections for tower sections must use high tensile strength nuts with ratings of - ANSWER-12
TCCM Bolting 4-5
Washers used in high tensile bolt connections shall be marked with - ANSWER-HV TCCm bolting 4-5
Before installation high tensile bolt connection components shall be cleaned and visually examined for -
ANSWER-damage and corrosion TcCCM bolting 4-7
When ready to torque the nut on a high tensile bolt connection you should - ANSWER-Lubricate threads
TCCM bolting 4-8
,During tightening of high tensile connections the bolt is stretched tom a specific percentage of its elastic
limit at the correct - ANSWER-Torque TCCM bolting 4-9
Preferably the tightening torque shall be applied to the - ANSWER-Nut TCCM bolting 4-9
The tightening torque values placed on the nuts and bolts of high tensile bolt connection are dependent
on the - ANSWER-type and size. TCCM bolting 4-9
What components of a tower crane are connected with high/tensile bolt connections? - ANSWER-
Foundation anchors, tower sections, slewing, ring support TCCM bolting 4-2
When the tower base bolts are torque the counter job should be positioned - ANSWER-0 degrees from
the bolt
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. TCCM maintenance 2-19
According to the NCCCO Tower Crane reference manual, how any safety turns (wraps) must be left on
the hoist drum when the load hook is in its lowest position - ANSWER-3 TCCM wire rope 5-1
According to 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% TCCM Wire rope 5-1
According to the ASME B30.3 what is the design factor for rotation resistant load hoist wire rope -
ANSWER-5.0 to 1 ASME 3-15.5 (b)
Who determines the correct hoist wire rope to be installed on tower cranes - ANSWER-Manufacturer
What grade alloy steel chain should be used for crane hoisting slings - ANSWER-80 OSHA 1910.184
, 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 ASME 3-2.4.3(b)(2)
According to ASME B30.3 a periodic inspection of a tower cranes wire rope shall be performed at least? -
ANSWER-Annually ASME 3-2.4.2(b)(1)
According to ASME B30.3 which inspection does not require records to be kept - ANSWER-Frequent
ASME 3-2.4.2
Wire rope lubricant is very important. It should be applied according to who's recommendations? -
ANSWER-Manufacturer ASME 3-2.4.4(e)
When you have core failure in wire rope a common result is - ANSWER-reduction in diameter ASME 3-
2.4.2 (Figure 9)
According to OSHA 1926.550, Who is responsible for machinery and equipment inspection before each
use - ANSWER-competent person
With a hook height of 350 feet, where should the hydraulic top climbing unit be positioned before
operating crane according to chart B - ANSWER-Uppermost tie in position
According to spacing chart B what is the distance from the face of the structure to the center line of the
crane - ANSWER-10`10"
When is it permitted to shift the hoist gear of a tower crane - ANSWER-Neutral Gear
According to ASME B30.3 an overhead power line is always considered to be - ANSWER-Energized until
the power company had verified it is not energized
According to ASME B30.3 maintenance personnel are permitted to operate the crane only when -
ANSWER-Performing their duties
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