Nccco Tower Crane Final Exam Complete Questions And Detailed Solutions Latest Update This Year Just Released

NCCCO TOWER CRANE FINAL EXAM
COMPLETE QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST RELEASED


Question 1: 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)


Question 2: 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)


Question 3: When should a tagline be used
Answer:

When rotation of load would be dangerous ASME 3-3.2.1(d)(8)


Question 4: What is the minimum design factor required for a boom
hoist rope
Answer:

3.55 ASME 3-1.5.5(c)


Question 5: 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)


Question 6: What is the maximum permitted wind speed when
climbing a tower
Answer:

20mph ASME 3-1.1.5(i)


Question 7: According to ASME B30.3 a crane should be plumbed
to
Answer:

1 to 500 ASME 3-1.1.5(g)


Question 8: 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)


Question 9: 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


Question 10: High Tensile bolts should be marked with
manufacturers designation and

,Answer:

Strength rating TCCM Bolting 4-4


Question 11: Bolt connections for tower sections must use high
tensile strength nuts with ratings of
Answer:

12 TCCM Bolting 4-5


Question 12: Washers used in high tensile bolt connections shall
be marked with
Answer:

HV TCCm bolting 4-5


Question 13: Before installation high tensile bolt connection
components shall be cleaned and visually examined for
Answer:

damage and corrosion TcCCM bolting 4-7


Question 14: When ready to torque the nut on a high tensile bolt
connection you should
Answer:

Lubricate threads TCCM bolting 4-8


Question 15: 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


Question 16: Preferably the tightening torque shall be applied to
the
Answer:

Nut TCCM bolting 4-9


Question 17: 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


Question 18: 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


Question 19: When the tower base bolts are torque the counter job
should be positioned
Answer:

0 degrees from the bolt


Question 20: According to the NCCCO Tower Crane reference
manual what items below should be part of the operators daily pre
check