NCCCO Tower Crane Exam UPDATED ACTUAL
Exam Question and Answer (2026/2027) |
Study Guide
• Hoist ropes not rotation resistant must have a design factor of -✓✓ 5 to 1
• Minimum pitch diameter load hoist sheaves: -✓✓ 18
• Minimum pitch diameter load block sheaves -✓✓ 18
• Minimum pitch diameter boom hoist sheaves -✓✓ 15
• How many randomly broken wires must there be to remove a
running wire rope from service -✓✓ 12
• Boom-hoist rope design factor: -✓✓ 3.55
• How many broken wires in one strand of one lay for pning
wire rope to be removed from service -✓✓ 4
• A crane should be plumbed to -✓✓ 1:500 (1" in 40')
• Static loads shall not exceed -✓✓ 63% of tipping
• High tensile bolts shall be marked with. -✓✓ manufacturers·'
designation and strength rating
• Nuts must be high tensile strength rating of -✓✓ 12
• Washers used shall be marked with -✓✓ HV
• Bolts check for: -✓✓ damage or corrosion
• When ready to torque the nut: -✓✓ lubricate threads.
, • Tightening torque values depends on _______ of nuts
and bolts. -✓✓ type and size
• High tensile bolt connections: -✓✓ Foundation anchors, tower
sections and slewing ring.
• What is the task of high-tensile bolt connections between -
tower sections: -✓✓ connecting components and transmitting
forces
• How many wraps on drum according to NCCCO: -✓✓ 3
• Check wire ropes and limit switches _______ -✓✓ daily
• Steel chain for slings (grade) -✓✓ 80
• B30.3 - Rotation ropes out of service if: -✓✓ 2 randomly broken wires in 6 rope
diameters
4 randomly broken wires in 30 rope diameters
• B30.3 - A periodic inspection of a tower crane wire rope
shall be performed at least -✓✓ annually
• OSHA 1926-550-Connect wire rope bridle to personnel
platform with __________ -✓✓ master links
• B30.3 - Rated loads when wind is considered the combined
effects of static inertial and wind shall not exceed ______ of
calculated tipping loads. -✓✓ 77%
• Fire extinguisher in cab or on machinery platform: -✓✓ ASME 10ABC
• Frequent inspection shall be performed by: -✓✓ designated person
• Frequent inspection - in light service: -✓✓ monthly
• Frequent inspection - in normal service -✓✓ weekly to monthly
Exam Question and Answer (2026/2027) |
Study Guide
• Hoist ropes not rotation resistant must have a design factor of -✓✓ 5 to 1
• Minimum pitch diameter load hoist sheaves: -✓✓ 18
• Minimum pitch diameter load block sheaves -✓✓ 18
• Minimum pitch diameter boom hoist sheaves -✓✓ 15
• How many randomly broken wires must there be to remove a
running wire rope from service -✓✓ 12
• Boom-hoist rope design factor: -✓✓ 3.55
• How many broken wires in one strand of one lay for pning
wire rope to be removed from service -✓✓ 4
• A crane should be plumbed to -✓✓ 1:500 (1" in 40')
• Static loads shall not exceed -✓✓ 63% of tipping
• High tensile bolts shall be marked with. -✓✓ manufacturers·'
designation and strength rating
• Nuts must be high tensile strength rating of -✓✓ 12
• Washers used shall be marked with -✓✓ HV
• Bolts check for: -✓✓ damage or corrosion
• When ready to torque the nut: -✓✓ lubricate threads.
, • Tightening torque values depends on _______ of nuts
and bolts. -✓✓ type and size
• High tensile bolt connections: -✓✓ Foundation anchors, tower
sections and slewing ring.
• What is the task of high-tensile bolt connections between -
tower sections: -✓✓ connecting components and transmitting
forces
• How many wraps on drum according to NCCCO: -✓✓ 3
• Check wire ropes and limit switches _______ -✓✓ daily
• Steel chain for slings (grade) -✓✓ 80
• B30.3 - Rotation ropes out of service if: -✓✓ 2 randomly broken wires in 6 rope
diameters
4 randomly broken wires in 30 rope diameters
• B30.3 - A periodic inspection of a tower crane wire rope
shall be performed at least -✓✓ annually
• OSHA 1926-550-Connect wire rope bridle to personnel
platform with __________ -✓✓ master links
• B30.3 - Rated loads when wind is considered the combined
effects of static inertial and wind shall not exceed ______ of
calculated tipping loads. -✓✓ 77%
• Fire extinguisher in cab or on machinery platform: -✓✓ ASME 10ABC
• Frequent inspection shall be performed by: -✓✓ designated person
• Frequent inspection - in light service: -✓✓ monthly
• Frequent inspection - in normal service -✓✓ weekly to monthly
