NCCCO TOWER CRANE EXAM ACTUAL EXAM 100 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A
NCCCO TOWER CRANE EXAM 2023-2024
ACTUAL EXAM 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A
According to ASME B30.3, how many randomly broken wires must
there be to remove a running wire rope from serivce – ANSWER- 12
ASME 3-3.4.3(b)(1)
According to ASME B30.3 when working near power lines when is a
signal person required – ANSWER- When crane moves within a booms
length of power lines ASME 3-3.4.3(a)(3)
According to OSHA after the crane has been checked out and before
personnel lift operations begin the crew should – ANSWER- Have a prelift 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
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