Tower Crane Certification Exam Prep (2026/2027 Updated) | Verified Questions & Answers | 100% Accurate

Tower Crane Certification Exam Prep (2026/2027 Updated) | Verified Questions & Answers | 100% Accurate Q. Which of the following OSHA regulations govern suspended personnel platforms? ANSWER OSHA 1926.1431 Q. According to ASME B30.3 The prohibited zone for power lines that are 60 kV is ANSWER 15 ft Q. According to ASME B30.3, load hoist rotation resistant wire rope has a design factor of ANSWER 5 to 1 Q. According to ASME B30.3 when Lifting a suspended personnel platform design factor for the rigging hardware is ANSWER 5 to 1 Q. According to ASME B30.3 Load hoist ropes that are not rotation resistant must have a design factor of ANSWER 5 to 1 Q. The OSHA construction standard for rigging equipment is ANSWER 1926.251 Q. According to ASME B30.3 on who's recommendations should a preventative maintenance program be set up? ANSWER Crane manufacturer Q. When using cable or nylon spreaders it is important to remember: ANSWER Q. According to OSHA when testing a man basket how long must the test pick be maintained? ANSWER 5 minutes Q. According to ASME B30.3 What is the minimum pitch diameter for load hoisting sheaves? ANSWER Not less than 18 times rope diameter Q. According to ASME B30.3 what is the minimum pitch diameter for load block sheaves? ANSWER Not less than 16 times rope diameter Q. According to ASME B30.3 what is the minimum pitch diameter for boom hoist sheaves? ANSWER Not less than 15 times rope diameter Q. According to OSHA when lifting personnel the cranes hook must be the type that ANSWER Can be closed and locked Q. According to OSHA when working over water with a man basket are the people inside required to wear a belt/harness? ANSWER No harness or belt required Q. According to ASME B30.3 when working near powerlines where should caution stickers be installed? ANSWER Operator station and at the base of the crane Q. According to OSHA a frequent inspection is: ANSWER Daily to monthly Q. According to OSHA a periodic inspection is: ANSWER Monthly to annually Q. Cranes idle for more than six months must have inspections performed: ANSWER Frequent and periodic Q. Cranes idle for less than six months must have inspections performed: ANSWER Frequent Q. Cranes lifting personnel platform must have the platform and rigging inspected: ANSWER Prior to each shift Q. Crane hooks must not be twisted in excess of: ANSWER 10 degrees Q. A Crane hook's throat must not exceed: ANSWER 15% of its original size Q. By order of hitch strength which is the correct answer? ANSWER Basket,vertical ,choker Q. According to ASME B30.3 And OSHA you should always have at least how many wraps on the hoist drum? ANSWER 2 Q. What is the minimum allowable distance from the crane and power lines under 50 kV? ANSWER 10 ft Q. According to ASME B30.3 How many randomly broken wires must there be to remove a running wire rope from service? ANSWER 12 Q. 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 Q. 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 Q. According to OSHA when is it safe to work closer than the allowable distance from power lines? ANSWER When utility company says lines are De-Energized Q. When should a tagline be used? ANSWER When rotation of load would be dangerous Q. What is the minimum design factor required for a boom hoist rope? ANSWER 3.55 Q. How many broken wires must be present in one strand of one lay for running wire rope to be removed from service? ANSWER 4 Q. What is the maximum permitted wind speed when climbing a tower? ANSWER 20 mph Q. According to ASME B30.3 A crane should be plumbed to: ANSWER 1 to 500 Q. According to ASME B30.3 The rated load under static conditions shall not exceed _________ of calculated tipping loads ANSWER 63% Q. 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 Q. High tensile bolts shall be marked with manufacturers designation and: ANSWER Strength rating Q. Bolt connections for tower sections must use high tensile strength nuts with ratings of: ANSWER 12 Q. Washers used in high tensile bolt connections shall be marked with: ANSWER HV Q. Before installation high tensile bolt connection Components shall be cleaned and visually examined for: ANSWER Damage and corrosion Q. When ready to torque the nut on a high tensile bolt connection you should: ANSWER 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 Use tipping as a guide for capacity What is the single most dangerous thing an operator can do to determine whether a crane can handle a load? Critical Lift More than 75% of chart capacity, close to power lines, hoisting personnel, 2 crane lift, special procedures. Fleet angle. The angle of cable from center of sheave to inside walls of hoist drum. D/d ratio Cabling When two cables touch (multiple parts of line spin and make contact) Ways to reduce cabling Even parts of line, shorter boom length, greater sheave diameter. Permissible line pull The amount of force, in pounds that a winch can pull continously IWRC 6x19 What class is 6x25 wire rope. 3.5 to 1 Safety factor for regular lay running rope working 3 to 1 Safety factor for regular lay running rope erecting 5 to 1 Safety factor for rotation resistant wire rope Two How many wraps must always remain on a load hoist or boom hoist drum? 6 inches or 20x diameter. What is the minimum length of tail on a wedge socket when using rotation resistant wire rope. Reasons for taking wire rope out of service other than wear or broken wires? Bird cagin, burns, over picking, missing tags, corrosion, core petrision, high strand anchor pin screw, safety, sling saver, chain shackles Types of shackles Criteria for taking a load hook out of service. 5% wear in critical areas, 10% any, twist, cracked, 5% in throat, not more than 1/4. 80% What is the efficiency of a wedge socket? 90% What is the efficiency of a flemish eye? 100% What is the efficiency of a spelter socket? Gross weight/ line pull of suspended load/ SWL or PLP How are parts of line determined? UBS/ Safety factor How is safe working load (SWL) determined? 90 degrees What is the maximum included angle of rigging when using a latch hook? 120 degrees What is the maximum included angle of rigging when using a shackle as a collector? Screw pins Must shackle bolts or screw pins be tightened before each lift? Top-up When using a shackle as a (gathering) collector, what position must the screw pin (or bolt) be, in relation to the hook? 1% How far out of level may a crane be before the load chart is not valid? Gross capacity, boom length,angle, radius, stability & structural. What information is obtained from a load chart? Repetitive work What is duty cycle work? 20% What is the normal load chart reduction for duty cycle work? No Does a 4 leg sling have double the capacity of the same 2 leg sling? 45 degrees Sorting (shake out) hooks should be used at an angle less than how many degrees? False Malleable wire rope clips are preferred for critical applications?