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NCCCO Certification of Crane Operators

Core Exam 2 Prep Questions and Answers

100% Pass | Graded A+

David Mungai [Date] [Course title]

NCCCO Certification of Crane Operators

Core Exam 2 Prep Questions and

Answers 100% Pass | Graded A+

What is the purpose of installing an auxiliary boom point sheave to the main boom tip? Separate hoist lines 3 multiple choice options A designated Lift Director shall be assigned by the ______? Site Supervisor 3 multiple choice options Who is responsible for calculating net capacity? Crane Operator 3 multiple choice options Who is responsible for ensuring all rigging is supervised by a Qualified Rigger? Site Supervisor/ Lift Director 3 multiple choice options Who is responsible for ensuring the crane owner is notified of any damage to the crane or replacement/repair of wire rope? Crane User 3 multiple choice options Who is responsible for restricting unauthorized access to the crane's work area? Site Supervisor/Lift Director 3 multiple choice options Who is responsible for ensuring the crane owner is notified of any damage to the crane or replacement/repair of wire rope? Crane User 3 multiple choice options Who is responsible for ensuring crane operations are stopped if alerted to an unsafe condition? Lift Director

3 multiple choice options What three functions will not work after two-blocking a crane that has a prevention system? Boom down, extend the boom and hoist 3 multiple choice options Boom angle on a telescoping boom is measured from above or below horizontal to the _________? Longitudinal axis of the boom base section 3 multiple choice options The line pull of the innermost layer on the hoist drum is __________than the outermost layer. Greater 3 multiple choice options Side loading of a crane can be caused by? Wind 3 multiple choice options If power fails to the crane what must the operator ensure is done? The controls are put in the neutral position 3 multiple choice options On a multiple crane lift, do not exceed _______ of the load chart. 75% 3 multiple choice options If a crane operator knows the boom length and the boom angle he could use the range diagram to estimate what? Load radius 3 multiple choice options Which of the following jib offsets will have the least amount of capacity? 30 degrees 3 multiple choice options When is it okay to make modifications to the structure of the crane's upper works? With written permission from the manufacturer 3 multiple choice options A sudden stop of the hoist on a crane will produce a what?

Dynamic load When hoisting personnel from a crane, what must be on the crane? Anti-two block device 3 multiple choice options What grade of alloy steel chain should be used for hoisting slings? 80 3 multiple choice options Each time a line passes from the boom point to the load block it is considered a _________? Part of line 3 multiple choice options Which statement about sling angles is correct? As sling angle decreases, sling stress increases 3 multiple choice options When installing a wedge socket end termination on the crane the live section of the rope should be in line with the? Pin 3 multiple choice options Which of the following hitches would be best suited for lifting a bundle of items? Double wrapped choker 3 multiple choice options If the signal person extends his arm at shoulder height with his thumb pointing down what do they want the operator to do? Boom down 3 multiple choice options If the signal person has their arm extended and is pointing to his/her left, what do they want you to do? Swing right 3 multiple choice options Why is a carry deck crane, called a carry deck? The deck of the crane has carrying capacities 3 multiple choice options

The lubricant used for wire rope should be of what type? That does not hinder visual inspection 3 multiple choice options How often should the crane operator inspect standard running wire rope? Every shift (When in use) 3 multiple choice options How many broken wires are allowed on 30 diameters of EEIPS rotation resistant wire rope? 4 3 multiple choice options With the boom at its highest angle and its shortest radius, how many wraps of wire rope need to be on the drum at all times? 2 3 multiple choice options When measuring load radius of the crane. You measure from the axis of rotation of the crane to the_____? Center of gravity of the load 3 multiple choice options What must be deducted from the gross capacity of the crane when the jib is erected, but not in use? Effective weight 3 multiple choice options Where can tip height be found? Range diagram 3 multiple choice options The Net Capacity of the crane is? Gross capacity minus all applicable deductions 3 multiple choice options When booming down with a jib/extension erected the effective weight of the jib_____? Increases 3 multiple choice options When using a crane in a duty cycle operation manufacturers usually de-rate the cranes capacity by?

3 multiple choice options How would the operator of the crane know if the radius on the LMI is correct? By measuring 3 multiple choice options According to OSHA, each series of voice signals contain how many elements? 3 3 multiple choice options What is the first element of voice signals given to a crane operator prior to the lift? Function and direction 3 multiple choice options When working within the boom's length of energized power lines what is required? A dedicated spotter to maintain safe clearances 3 multiple choice options What is the first thing the operator should do if the crane comes in contact with an energized power line? Remain in the cab until power line is de-energized 3 multiple choice options The weight deduction for a stowed jib is _______? The effective weight 3 multiple choice options If the boom angle of the crane falls between values on the load chart you should use? The lower angle 3 multiple choice options What is the most common type of wire rope used on a crane? Right regular lay 3 multiple choice options According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line over 200 KV is? 20 ft.

3 multiple choice options When hoisting personnel, within what percentage of level must a telescopic boom crane be in order for the gross ratings in the load chart to remain valid? 1% 3 multiple choice options What may happen to a properly rigged load when lifted off the ground unless the operator takes account of boom deflection? It could swing out away from the crane 3 multiple choice options Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? The front 3 multiple choice options What is the definition of "operating radius?" The distance from the center of rotation of the crane to the center of gravity of the load 3 multiple choice options What applies to the capacities below the bold line shown on a load chart? They are based on the stability of the crane 3 multiple choice options In which quadrant are rough terrain crane capacities generally greater? Over the front 3 multiple choice options According to federal requirements, under what conditions is it okay for a person to ride the headache ball? It is never okay 3 multiple choice options By what percentage do most manufacturers require a crane's load chart capacity to be reduced by for duty cycle operations such as high-volume concrete placement? 20% 3 multiple choice options

What is the preferred method of installing wire rope from a reel onto a hoist drum? The rope runs from the top of the reel to the top of the drum 3 multiple choice options Over which quadrant are truck crane capacities usually greater? Over the rear 3 multiple choice options According to OSHA, which accessible area of an operating crane must always be barricaded? The swing radius of the rear of the rotating superstructure 3 multiple choice options What is the OSHA regulation governing cranes in construction?

3 multiple choice options Under which circumstance is a crack in the windshield of a crane cab okay? As long as it causes no visible distortion that would interfere with safe operations 3 multiple choice options Under which circumstance does OSHA permits hoisting of personnel by crane? As long as there is no less hazardous or practicable way 3 multiple choice options Unless the manufacturer states otherwise, what crane capacity chart is appropriate when a crane is set up with 3 of its 4 outriggers extended and the fourth is retracted? On-rubber chart 3 multiple choice options According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane's rated capacity?" 50% 3 multiple choice options When is side loading of crane booms permitted? Only with freely suspended loads 3 multiple choice options

3 multiple choice options How many parts of line are required to hoist a 36,500 lb. load if the maximum allowable line pull is 9,000 lb. 5 3 multiple choice options Where should the hook be positioned when preparing to hoist a light load? Directly above the load's center of gravity 3 multiple choice options When using a luffing jib, decreasing the angle will _______? Decrease capacity 3 multiple choice options Who is responsible for calculating net capacity? Crane Operator 3 multiple choice options A swivel on rotation resistant wire rope can be used when ________? The manufacturer gives approval 3 multiple choice options If the anti-two block is not working properly, an alternative measure is _______? Immediately report to the supervisor and mark the wire rope 3 multiple choice options When a crane suddenly stops during a lift, the loading on the crane tends to _________? Increase 3 multiple choice options What type of jib can increase or decrease angle during operation? Luffing jib 3 multiple choice options What happens to the leverage of the load on a crane as the boom is being lowered? It increases 3 multiple choice options

The minimum approach distance for cranes driving, in transit, under power lines that are over 50 kV is _____? 10' 3 multiple choice options During disassembly of a long boom, the pendant lines are connected at the maximum cantilever point and the boom is slightly lifted off the ground. Which pins are to be removed next? The bottom pins ahead of the cantilever point 3 multiple choice options Which configuration requires the greatest capacity reduction when out of level? Long boom, minimum radius 3 multiple choice options What is the purpose of a Load Moment Indicator? Aid the operator by displaying relevant information and alert the operator of unsafe conditions. 3 multiple choice options According to ASME B30.5, how often must a crane operator take a physical exam? Every 3 years 3 multiple choice options What is an example of high duty cycle? High speed concrete operations 3 multiple choice options While setting a crane up on unstable ground what must the operator ensure? The stabilizer is 90° to the pad 3 multiple choice options When a lattice boom is being dismantled __________. Never touch any pin on any boom section located between the pendant attachment points and the crane. 3 multiple choice options How can an operator ensure the radius being displayed by the LMI is correct? By proper measurement

What is the definition of net load? The actual weight of the load before attachments/load handling devices are factored in 2 multiple choice options What is the definition of net capacity? The capacity listed on the load chart given the configuration minus all applicable attachments/load handling devices 3 multiple choice options The term "center of gravity" means: The point of an object around which the weight is averaged (concentrated) 3 multiple choice options ANSI/ASME B30.5 deals with which type of cranes? Mobile and locomotive 3 multiple choice options What is the meaning of "boom stop"? Device used to limit the boom at its highest position. 3 multiple choice options In order to calculate the working load limit of wire rope, you must: Divide the breaking strength by the appropriate design factor 3 multiple choice options "Effective weight" is: The calculated amount of effect a component will have on the lifting point of a crane 3 multiple choice options On a lattice boom crane, which position should the gantry be in when lifting a load? Highest position 3 multiple choice options Blocking angle type outriggers too high could cause: Tipping axis reduction 3 multiple choice options When setting up a mobile crane on uneven ground, you should place blocking under outrigger pontoons so that they are _____ the cylinder

Perpendicular (90°) to 3 multiple choice options The effect of external pressure on wire rope is described as: Crushing 3 multiple choice options Due to its tendency to untwist, which of these types of wire rope should NOT be used on single part hoisting lines? Lang lay 3 multiple choice options Rotation resistant wire rope sometimes has a lower Working Load Limit than an equal sized regular lay wire rope because: Rotation resistant wire rope has a higher design factor 3 multiple choice options At what angle to the horizontal will the stress on each sling leg (using 2 slings) be equal to the weight of the load? 30° 3 multiple choice options Extra load radius can be caused by: Rapid swing 3 multiple choice options When assembling lattice boom sections, which set of pin holes are lined up and pinned first? The top ones 1 multiple choice option Crane stability is based on: The leverage principle 3 multiple choice options The effective weight of an attachment is: Any of these options 3 multiple choice options The primary purpose of a jib is: To increase tip height 3 multiple choice options When constructing crane mats, the best way to secure the timbers together is to:

OSHA refers to the area which it is reasonably foreseeable that partially or completely suspended materials could fall as the Fall zone 3 multiple choice options It's okay to get under the crane's boom during assembly/disassembly When site constraints require it and A/D Director exercises precautions 2 multiple choice options What is the purpose of a PTO? To transfer power from the engine to the hydraulic pump 3 multiple choice options Having an outrigger partially retracted Makes the tipping axis closer to the crane's center of gravity 3 multiple choice options What is the purpose of an anemometer? To measure wind speed. 3 multiple choice options What device can be used to read boom length, radius and load weight? Rated Capacity Indicator 3 multiple choice options When severing wire rope in two to correct a localized deficiency in wire rope, what is not permitted? Splicing 3 multiple choice options Which of the following cannot be used to determine if the correct load chart is provided? Date of manufacture 3 multiple choice options When lifting a load on outriggers over which quadrant would yield the greatest ground pressure? Over the Corner 3 multiple choice options Who must confirm that powerlines are de-energized?

The Utilities Provider 3 multiple choice options What indicates core damage in rotation resistant wire rope? Localized loss of diameter 3 multiple choice options List these three hitches in order from strongest to weakest. Basket, Vertical, Choker 3 multiple choice options When operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? Keeping a 90° angle between the stabilizer and the float 3 multiple choice options Upon arrival at a job sit, the operator should first determine the condition of the: Access roads 3 multiple choice options On whose recommendations should a mobile crane preventative maintenance program be developed? The Crane Manufacturer 3 multiple choice options On the range diagram of a mobile crane, the boom length and boom angle can be used to determine? The radius 3 multiple choice options During a pick and carry the stability of the crane is based on what percentage of tipping? 75% 3 multiple choice options When should a tag line be used, during the hoisting of material? When rotation of the load can be considered hazardous 3 multiple choice options Which of the following correctly states the requirements for hooks used to hoist employees on a crane-supported personnel platform? Hooks shall have a latch that closes and locks