NCCCO TOWER CRANE FINAL EXAM COMPLETE 150 QUESTIONS AND CORRECT DETAILED ANSWERS
According to OSHA after the crane has been checked out and before personnel lift operations begin the
crew should - ANSWER-Have a pre-lift meeting OSHA 1926.550(g)(8)
According to OSHA when is it safe to work closer than the allowable distance from the power lines -
ANSWER-When utility company says lines are de-energized OSHA 1926.550(a)(15)(vi)
When should a tagline be used - ANSWER-When rotation of load would be dangerous ASME 3-3.2.1(d)(8)
What is the minimum design factor required for a boom hoist rope - ANSWER-3.55 ASME 3-1.5.5(c)
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)
According to OSHA after the crane has been checked out and before personnel lift operations begin the
crew should - ANSWER-Have a pre-lift meeting OSHA 1926.550(g)(8)
According to OSHA when is it safe to work closer than the allowable distance from the power lines -
ANSWER-When utility company says lines are de-energized OSHA 1926.550(a)(15)(vi)
When should a tagline be used - ANSWER-When rotation of load would be dangerous ASME 3-3.2.1(d)(8)
What is the minimum design factor required for a boom hoist rope - ANSWER-3.55 ASME 3-1.5.5(c)
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)
