NCCCO Tower Crane Test (New 2023/ 2024 Update) Questions and Verified Answers| Graded A| 100% Correct
NCCCO Tower Crane Test (New 2023/ 2024
Update) Questions and Verified Answers|
Graded A| 100% Correct
QUESTION
According to AMSE B30.3 an overhead powerline is ALWAYS considered to be:
Answer:
Energized until the power company has verified it is not energized
QUESTION
High tensile bolts shall be marked with manufacturers designation and:
Answer:
Strength rating
QUESTION
Bolt connections for tower sections must use high tensile strength nuts with ratings of:
Answer:
12
QUESTION
Washers used in high tensile bolt connections shall be marked with:
Answer:
HV
QUESTION
Before installation high tensile bolt connection Components shall be cleaned and visually
examined for:
Answer:
Damage and corrosion
QUESTION
When ready to torque the nut on a high tensile bolt connection you should:
Answer:
Lubricate threads
QUESTION
During tightening of high tensile connections the bolt is stretched to a specific percentage of its
elastic limit at the correct:
Answer:
Torque
QUESTION
Preferably the tightening torque shall be applied to the:
Answer:
Nut
QUESTION
The tightening torque values placed on the nuts and bolts of high tensile bolt connection are
dependent on the:
Answer:
Type and size
QUESTION
What components of a tower crane are connected with high tensile bolt connections?
Answer:
Foundation anchors, tower sections, slewing ring support
QUESTION
When the Tower base bolts are torqued the counter jib should be positioned:
Answer:
0° from the bolt
QUESTION
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
QUESTION
According to the NCCCO tower crane reference manual, how many safety turns (wraps) must
be left on the hoist drum when the load hook is in its lowest position?
Answer:
3
QUESTION
According to the 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%
QUESTION
According to ASME B30.3, what is the design factor for rotation resistant load hoist wire rope?
Answer:
5.0 to 1
QUESTION
Who determines the correct hoist wire rope to be installed on tower cranes?
Answer:
Manufacturer
QUESTION
What grade alloy steel chain should be used for crane hoisting slings?
Answer:
80
QUESTION
According to ASME B30.3, using rotation resistant running rope on a tower crane, how many
broken wires in six rope diameters can you have to leave it in service?
Answer:
1
QUESTION
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Which of the following OSHA regulations govern suspended personnel platforms?
OSHA 1926.1431
According to ASME B30.3 The prohibited zone for power lines that are 60 kV is
15 ft
According to ASME B30.3, load hoist rotation resistant wire rope has a design factor of
5 to 1
According to ASME B30.3 when Lifting a suspended personnel platform design factor for the rigging hardware is
5 to 1
According to ASME B30.3 Load hoist ropes that are not rotation resistant must have a design factor of
5 to 1
The OSHA construction standard for rigging equipment is
1926.251
According to ASME B30.3 on who’s recommendations should a preventative maintenance program be set up?
Crane manufacturer
When using cable or nylon spreaders it is important to remember:
The lower the spreader angle the greater the tension
According to OSHA when testing a man basket how long must the test pick be maintained?
5 minutes
According to ASME B30.3 What is the minimum pitch diameter for load hoisting sheaves?
Not less than 18 times rope diameter
According to ASME B30.3 what is the minimum pitch diameter for load block sheaves?
Not less than 16 times rope diameter
According to ASME B30.3 what is the minimum pitch diameter for boom hoist sheaves?
Not less than 15 times rope diameter
According to OSHA when lifting personnel the cranes hook must be the type that
Can be closed and locked
According to OSHA when working over water with a man basket are the people inside required to wear a belt/harness?
No harness or belt required
According to ASME B30.3 when working near powerlines where should caution stickers be installed?
Operator station and at the base of the crane
According to OSHA a frequent inspection is:
Daily to monthly
According to OSHA a periodic inspection is:
Monthly to annually
Cranes idle for more than six months must have inspections performed:
Frequent and periodic
Cranes idle for less than six months must have inspections performed:
Frequent
Cranes lifting personnel platform must have the platform and rigging inspected:
Prior to each shift
Crane hooks must not be twisted in excess of:
10 degrees
A Crane hook’s throat must not exceed:
15% of its original size
By order of hitch strength which is the correct answer?
Basket,vertical ,choker
According to ASME B30.3 And OSHA you should always have at least how many wraps on the hoist drum?
2
What is the minimum allowable distance from the crane and power lines under 50 kV?
10 ft
According to ASME B30.3 How many randomly broken wires must there be to remove a running wire rope from service?
12
According to ASME B30.3 when working near power lines when is a signal person required?
When crane moves within a booms length of power lines
According to OSHA after the crane has been checked out and before personnel lift operations begin the crew should:
Have a pre-lift meeting
According to OSHA when is it safe to work closer than the allowable distance from power lines?
When utility company says lines are De-Energized
When should a tagline be used?
When rotation of load would be dangerous
What is the minimum design factor required for a boom hoist rope?
3.55
How many broken wires must be present in one strand of one lay for running wire rope to be removed from service?
4
What is the maximum permitted wind speed when climbing a tower?
20 mph
According to ASME B30.3 A crane should be plumbed to:
1 to 500
According to ASME B30.3 The rated load under static conditions shall not exceed _ of calculated tipping loads
63%
According to AMSE B30.3 an overhead powerline is ALWAYS considered to be:
Energized until the power company has verified it is not energized
High tensile bolts shall be marked with manufacturers designation and:
Strength rating
Bolt connections for tower sections must use high tensile strength nuts with ratings of:
12
Washers used in high tensile bolt connections shall be marked with:
HV
Before installation high tensile bolt connection Components shall be cleaned and visually examined for:
Damage and corrosion
When ready to torque the nut on a high tensile bolt connection you should:
Lubricate threads
During tightening of high tensile connections the bolt is stretched to a specific percentage of its elastic limit at the correct:
Torque
Preferably the tightening torque shall be applied to the:
Nut
The tightening torque values placed on the nuts and bolts of high tensile bolt connection are dependent on the:
Type and size
What components of a tower crane are connected with high tensile bolt connections?
Foundation anchors, tower sections, slewing ring support
When the Tower base bolts are torqued the counter jib should be positioned:
0° from the bolt
According to the NCCCO tower crane reference manual what items below should be part of the operators Daily pre-check?
Wire ropes, limit switches
According to the NCCCO tower crane reference manual, how many safety turns (wraps) must be left on the hoist drum when the load hook is in its lowest position?
3
According to the 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?
10%
According to ASME B30.3, what is the design factor for rotation resistant load hoist wire rope?
5.0 to 1
Who determines the correct hoist wire rope to be installed on tower cranes?
Manufacturer
What grade alloy steel chain should be used for crane hoisting slings?
80
According to ASME B30.3, using rotation resistant running rope on a tower crane, how many broken wires in six rope diameters can you have to leave it in service?
1
According to ASME B30.3, a periodic inspection of tower cranes wire rope shall be performed at least?
Annually
According to ASME B30.3, which inspection does not require records to be kept?
Frequent
Wire rope lubricant is very important. It should be applied according to who’s recommendations?
Manufacturer
When you have core failure in wire rope, a common result is?
Reduction in diameter
According to OSHA 1926.550, who is responsible for machinery and equipment inspection before each use?
Foreman
When is it permitted to shift the hoist gear of a tower crane?
Neutral gear
According to ASME B30.3 , an overhead powerline is ALWAYS considered to be:
Energized until the power company has verified it is not energized
According to ASME B30.3, Maintenance personnel are permitted to operate the crane only when:
Performing their duties
According to ASME B30.3, Who should be present when telescoping or climbing operations begin?
Operator
According to OSHA 1926.550, when a wire rope bridal is used to connect a personnel platform to the load line, each bridal leg shall be connected to a:
Master link
Hand signals to construction tower crane operators shall be those prescribed by:
ASME B30.3
According to OSHA 1926. 550, what shall be provided at both ends of travel of the trolley?
Buffers
According to ASME B30.3, All controls shall be tested by the operator:
At the start of a new shift
According to ASME B30.3 which is the correct statement:
Rated loads when wind is considered, the combined effects of static inertial and wind shall not exceed 77% of calculated tipping loads
According to OSHA 1926-550 a class _ fire extinguisher shall be kept in the cab or on the machinery platform:
5BC or higher
According to ASME B30.3, where must a wind velocity indicating device be mounted?
At or near the top of the crane
According to ASME B30.3, a frequent inspection shall be performed by a:
Designated person
According to ASME B30.3, a frequent inspection in light service conditions must be performed:
Monthly
According to ASME B30.3 A frequent inspection in normal service conditions must be performed:
Weekly to Monthly
According to ASME B30.3,A frequent inspection in heavy service conditions must be performed:
Daily to weekly
According to ASME B30.3, a periodic inspection in light service conditions must be performed:
Annually
According to ASME B30.3, a periodic inspection in normal service conditions must be performed:
Semi annually to annually
According to ASME B30.3, a periodic inspection in heavy service conditions must be performed:
Quarterly
According to ASME B30.3, when shall pre-operational testing be perform:
After erection and each climbing operations
According to ASME B30.3 Load Limit Device settings shall be verified by means of a static test using test loads of _ of applicable reading:
102.5% – 110%
According to ASME B30.3, hoist rope should be visually inspected at least once each:
Work day
According to ASME B30.3, Trolley rope should be visually inspected at least once each:
Month
According to ASME B30.3, rotation resistant wire rope shall be removed from service if:
There are 2 randomly distributed broken wires in six rope diameters or 4 randomly distributed broken wires in thirty rope diameters
According to ASME B30.3, if MORE than __ Broken wires at the end connection the wire rope shall be ore-socketed or replaced:
2
According to ASME B30.3, Who should be present during climbing or telescoping operations?
Operator 3
According to ASME B30.3, The operator shall test the brakes each time lifting a rated load by:
Lifting it a few inches and applying the brakes
According to ASME B30.3, personnel platforms shall be limited to capacity of_______ Persons
6
According to OSHA 1926.550, personnel platforms shall be limited to how many occupants?
Number required for the work being performed
According to ASME B30.3 Personnel platform shall be proof tested with what percentage of the platforms rated capacity?
200%
According to ASME B30.3, What is the duration of a proof test?
5 minutes
According to ASME B30.3, personnel platforms should not be used in winds in excess of:
15 mph
According to ASME B30.3 if any controls do not operate properly they shall be adjusted or repaired prior to:
Commencing the next lift operation
According to OSHA, wire rope slings shall not be used if, in any length of eight diameters, the total number of visible broken wires exceed _ Percent of the total number of wires:
10
According to OSHA 1926.251, rigging hardware shall be inspected:
Prior to each shift
According to OSHA 1926.251, custom designed rigging hardware shall be proof tested to _______Percent of their rated load:
125
According to OSHA 1926.251 safety factor of______ must be maintained on all wire rope slings.
5
According to OSHA 1926.251, all rigging and rigging hardware must be inspected by a:
Competent person
The maximum included angle allowed when attaching slings directly to the hook is________degrees.
90
Slings shall be removed from service if hooks are cracked or have been opened more than_______ percent of the normal throat opening measured at the narrowest point.
15
Slings shall be removed from service if hooks are twisted more than______degrees from the plane of the unbent hook.
10
According to OSHA 1926.753, cranes being used in steel erection activities shall be visually inspected by a competent person:
Prior to each shift
According to OSHA 1926.753 All loads shall be rigged by a:
Qualified rigger
According to OSHA 1926.753, the maximum number of pieces that you may Christmas tree is?
5
According to OSHA 1926.753, what is the minimum distance between pieces during Christmas tree operations?
7 feet
According to OSHA 1926.753, all hooks used will be equipped with_____latches.
Self closing
According to OSHA 1926.753, a critical lift means a lift that exceeds_______percent of the rated capacity of the crane or derrick or requires the use of more than one crane or derrick.
75
What is the OSHA regulation dealing with steel erection?
1926.753
According to OSHA 1926.753, components of the multiple lift rigging assembly shall be specifically designed and assembled with a maximum capacity for total assembly and for each individual attachment point.
This capacity, certified by the manufacturers or a qualified rigger, shall be based on the manufacturers specifications with a_____ to 1 safety factor for all components.
5
What is the proper procedure when using an insulating link or a boot near powerlines?
Be sure to maintain the correct allowable distance from the lines
According to ASME B30.3 ,A periodic Inspection shall be performed by a:
Appointed person
Central ballast blocks must be distributed around the tower base:
Equally
According to the tower crane reference manual how often should the hoist wire rope be lubricated?
200 hours of operation
According to the tower crane reference manual, using twist free wire rope the twist compensator should generally be:
Open
Tower crane load hooks must be inspected each time a crane is erected or once every
Year
When installing a wedge socket with wire rope how long should the tail length of the dead end be using standard 6 to 8 strand rope?
6
What is the task of high tensile bolt connections between tower sections?
Connecting components and transmitting forces
The maximum included angle allowed when attaching slings a shackle then to the hook is_________degrees.
120
According to ASME B30.3, a class __ fire is sting wisher shall be kept in the cab or on the machinery platform.
10BC