Nccco Tower Crane Certification Level Ii Complete Question Set With Rationales And Field Practice Review 2026

NCCCO TOWER CRANE CERTIFICATION
LEVEL II COMPLETE QUESTION SET WITH
RATIONALES AND FIELD PRACTICE REVIEW
2026

◉ Minimum pitch diameter load hoist sheaves:
Answer: 18


◉ Minimum pitch diameter load block sheaves
Answer: 18


◉ Minimum pitch diameter boom hoist sheaves
Answer: 15


◉ How many randomly broken wires must there be to remove a
running wire rope from service
Answer: 12


◉ Boom-hoist rope design factor:
Answer: 3.55

,◉ How many broken wires in one strand of one lay for pning
wire rope to be removed from service
Answer: 4


◉ A crane should be plumbed to
Answer: 1:500 (1" in 40')


◉ Static loads shall not exceed
Answer: 63% of tipping


◉ High tensile bolts shall be marked with.
Answer: manufacturers·'
designation and strength rating


◉ Nuts must be high tensile strength rating of
Answer: 12


◉ Washers used shall be marked with
Answer: HV


◉ Bolts check for:
Answer: damage or corrosion

, ◉ When ready to torque the nut:
Answer: lubricate threads.


◉ Tightening torque values depends on _______ of nuts
and bolts.
Answer: type and size


◉ High tensile bolt connections:
Answer: Foundation anchors, tower
sections and slewing ring.


◉ What is the task of high-tensile bolt connections between -
tower sections:
Answer: connecting components and transmitting
forces


◉ How many wraps on drum according to NCCCO:
Answer: 3


◉ Check wire ropes and limit switches _______
Answer: daily