NCCCO Core Practice Exam Questions and Answers: Crane Operation, Exams of Nursing

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What is the most common type of wire rope used on a crane? Right regular lay According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line over 200 KV is? 20 ft. What is the purpose of installing an auxiliary boom point sheave to the main boom tip? Separate hoist lines When lifting from a jib/extension and the main boom is not fully extended. What information must you use to get the gross capacity from the load chart? Main boom angle According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line up to 50 KV is? 10 ft.

According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line at 100 KV is?

15 ft. According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line over 350 KV is? 25 ft. According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line over 500 KV is? 35 ft. According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line at 750 KV is? 35 ft. According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line at 1000 KV is? 45 ft. If carrying a load on a downward slope, the radius will? Increase If carrying a load on an upward slope, the radius will? Decrease

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% 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 Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? The front 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 What applies to the capacities below the bold line shown on a load chart? They are based on the stability of the crane In which quadrant are rough terrain crane capacities generally greater? Over the front According to federal requirements, under what conditions is it okay for a person to ride the headache ball? It is never okay

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% 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 Over which quadrant are truck crane capacities usually greater? Over the rear According to OSHA, which accessible area of an operating crane must always be barricaded? The swing radius of the rear of the rotating superstructure What is the OSHA regulation governing cranes in construction?

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 Under which circumstance does OSHA permits hoisting of personnel by crane? As long as there is no less hazardous or practicable way 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

According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane's rated capacity?" 50% When is side loading of crane booms permitted? Only with freely suspended loads What is indicated if an operator makes two audible signals when moving a crane? He/she intends to go ahead What is the result of placing timber blocking under the tips of the tracks on a crawler crane? Makes the crane more stable According to ASME, what percentage of the manufacturer's crane rating must not be exceeded if a load test is done on a repaired crane? 110% What should be done with materials placed under overhead energized power lines? Not be lifted by crane Where should the crane's outrigger pads or tracks be placed when working at ground floor level near a cellar wall? At least as far back as the depth of the wall below ground

What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? It increases Where are the Standard Method hand signals found? OSHA Subpart CC Appendix A What happens to the leverage of the load on a crane as the boom is being lowered? It increases When is it okay to temporarily bypass a crane's overload warning system? During assembly/disassembly operations 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 Where should the hook be positioned when preparing to hoist a light load? Directly above the load's center of gravity When using a luffing jib, decreasing the angle will? Decrease capacity Who is responsible for calculating net capacity? Crane Operator

A swivel on rotation resistant wire rope can be used when? The manufacturer gives approval If the anti-two block is not working properly, an alternative measure is? Immediately report to the supervisor and mark the wire rope When a crane suddenly stops during a lift, the loading on the crane tends to? Increase What type of jib can increase or decrease angle during operation? Luffing jib What happens to the leverage of the load on a crane as the boom is being lowered? It increases The minimum approach distance for cranes driving, in transit, under power lines that are over 50 kV is ? 10' 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 Which configuration requires the greatest capacity reduction when out of level? Long boom, minimum radius

What is the purpose of a Load Moment Indicator? Aid the operator by displaying relevant information and alert the operator of unsafe conditions. According to ASME B30.5, how often must a crane operator take a physical exam? Every 3 years What is an example of high duty cycle? High speed concrete operations While setting a crane up on unstable ground what must the operator ensure? The stabilizer is 90° to the pad When a lattice boom is being dismantled. Never touch any pin on any boom section located between the pendant attachment points and the crane. How can an operator ensure the radius being displayed by the LMI is correct? By proper measurement What is the purpose of a barge chart? To account for list and trim What must be done when working on a barge? The crane must be secured

According to OSHA subpart CC, when employees are engaged in hooking, unhooking, or guiding the load within the fall zone what type of hook should be used? J hook According to OSHA subpart CC, when employees are engaged in hooking, unhooking or guiding the load within the fall zone Hooks must have self-closing latches An electrocution decal needs to be placed where on the crane? One in the cab and two on the outside of the crane What is the capital D referring to in the term D/d ratio, as it related to a basket hitch? The diameter of the load If the controlling entity cannot be contacted, who should be notified if there is an issue with ground conditions? Employer with authority What is the definition of gross load? The load weight plus the weight of all attachments/load handling devices What is the definition of net load? The actual weight of the load before attachments/load handling devices are factored in What is the definition of net capacity?

The capacity listed on the load chart given the configuration minus all applicable attachments/load handling devices The term "center of gravity" means: The point of an object around which the weight is averaged (concentrated) ANSI/ASME B30.5 deals with which type of cranes? Mobile and locomotive What is the meaning of "boom stop"? Device used to limit the boom at its highest position. In order to calculate the working load limit of wire rope, you must: Divide the breaking strength by the appropriate design factor "Effective weight" is: The calculated amount of effect a component will have on the lifting point of a crane On a lattice boom crane, which position should the gantry be in when lifting a load? Highest position Blocking angle type outriggers too high could cause: Tipping axis reduction The effect of external pressure on wire rope is described as: Crushing

Due to its tendency to untwist, which of these types of wire rope should NOT be used on single part hoisting lines? Lang lay 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 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° Extra load radius can be caused by: Rapid swing Crane stability is based on: The leverage principle The effective weight of an attachment is: Any of these options The primary purpose of a jib is: To increase tip height

When constructing crane mats, the best way to secure the timbers together is to: Bolt them together When lifting a load out of water, you can expect: The weight of the load to increase as the load displaces less water A designated Lift Director shall be assigned by the? Site Supervisor Who is responsible for calculating net capacity? Crane Operator Who is responsible for ensuring all rigging is supervised by a Qualified Rigger? Site Supervisor/ Lift Director Who is responsible for ensuring the crane owner is notified of any damage to the crane or replacement/repair of wire rope? Crane User Who is responsible for restricting unauthorized access to the crane's work area? Site Supervisor/Lift Director Who is responsible for ensuring the crane owner is notified of any damage to the crane or replacement/repair of wire rope?

Crane User Who is responsible for ensuring crane operations are stopped if alerted to an unsafe condition? Lift Director If the operator or A/D determine that ground conditions are not suitable for the equipment being operated, they should request the correct the issue Controlling Entity Who is responsible for ensuring that personnel involved in crane operations understand their responsibilities, assigned duties and associated hazards? Lift Director When can the operator of a crane set the crane up with less than fully extended outriggers? When the load chart allows The outrigger pad and cribbing should be strong enough to support? The total weight of the crane and the load What must be known prior to setting up your crane? Location of underground vaults What is the minimum distance the flange on the hoist drum should extend above the last wrap of rope?

½ inch Eccentric main boom tip reeving will Twisting of the boom What is the most common wire rope used on most cranes? Right regular lay Prior to leveling a crane what should be done with the outrigger jack? Secure the float pad to jack cylinder What three functions will not work after two-blocking a crane that has a prevention system? Boom down, extend the boom and hoist Boom angle on a telescoping boom is measured from above or below horizontal to the? Longitudinal axis of the boom base section The line pull of the innermost layer on the hoist drum is than the outermost layer. Greater Side loading of a crane can be caused by? Wind If power fails to the crane what must the operator ensure is done? The controls are put in the neutral position

On a multiple crane lift, do not exceed of the load chart. 75% If a crane operator knows the boom length and the boom angle he could use the range diagram to estimate what? Load radius Which of the following jib offsets will have the least amount of capacity? 30 degrees When is it okay to make modifications to the structure of the crane's upper works? With written permission from the manufacturer 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 What grade of alloy steel chain should be used for hoisting slings? 80 Each time a line passes from the boom point to the load block it is considered a? Part of line

Which statement about sling angles is correct? As sling angle decreases, sling stress increases When installing a wedge socket end termination on the crane the live section of the rope should be in line with the? Pin Which of the following hitches would be best suited for lifting a bundle of items? Double wrapped choker 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 If the signal person has their arm extended and is pointing to his/her left, what do they want you to do? Swing right Why is a carry deck crane, called a carry deck? The deck of the crane has carrying capacities How much clearance is required between the counterweight of the crane and all objects? 2 ft. Which of the following would be good ground conditions for setting up a crane?

Compacted and level When using a carpenter's level to check the level condition of the crane, where would be the best location to put the level? Swing bearing of the upper works What is the advantage to placing mats or cribbing under the outrigger floats? Lowers the ground pressure applied by the crane When operating a crane within 100 feet of water what degree of level should your crane be? .57 degrees When is it ok to place blocking under the outrigger beams of a crane? Never What is the purpose of installing a auxiliary boom point sheave to the main boom tip? Separate hoist lines Which of the following is considered standing rope? Pendant line How many broken wires are allowed in one strand of one lay of standard wire rope? 3 The lubricant used for wire rope should be of what type?

That does not hinder visual inspection How often should the crane operator inspect standard running wire rope? Every shift (When in use) How many broken wires are allowed on 30 diameters of EEIPS rotation resistant wire rope? 4 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 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 What must be deducted from the gross capacity of the crane when the jib is erected, but not in use? Effective weight Where can tip height be found? Range diagram The Net Capacity of the crane is? Gross capacity minus all applicable deductions

When booming down with a jib/extension erected the effective weight of the jib? Increases When using a crane in a duty cycle operation manufacturers usually de-rate the cranes capacity by? 20% How would the operator of the crane know if the radius on the LMI is correct? By measuring According to OSHA, each series of voice signals contain how many elements? 3 What is the first element of voice signals given to a crane operator prior to the lift? Function and direction When working within the boom's length of energized power lines what is required? A dedicated spotter to maintain safe clearances 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 The weight deduction for a stowed jib is? The effective weight

If the boom angle of the crane falls between values on the load chart you should use? The lower angle Unless otherwise noted by the manufacturer, lattice boom sections should be added: With the shorter sections installed toward the butt end. The term "slew" means: Swing Quadrants of operation can be found in: Work area diagram Which of these functions could increase deflection of the crane's boom? Swinging the load Which of these statements is true? Jib capacities increase as the angle to the ground increases Which of the following would be okay to remove from a carry deck crane for lifting operations? Boom extension Which of these functions can change a mobile crane's quadrant of operation? Swing The angle between the legs of a 2 - leg bridle hitch is referred to as the

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

Over the Corner Who must confirm that powerlines are de-energized? The Utilities Provider What indicates core damage in rotation resistant wire rope? Localized loss of diameter List these three hitches in order from strongest to weakest. Basket, Vertical, Choker 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 Upon arrival at a job sit, the operator should first determine the condition of the: Access roads On whose recommendations should a mobile crane preventative maintenance program be developed? The Crane Manufacturer On the range diagram of a mobile crane, the boom length and boom angle can be used to determine? The radius

During a pick and carry the stability of the crane is based on what percentage of tipping? 75% When should a tag line be used, during the hoisting of material? When rotation of the load can be considered hazardous 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 What should be planned for in regards to getting a large crane to a job site? Constricting roads While the operator is moving a suspended load, no employee must be within the fall zone, except for employees: Operating a concrete hopper or concrete bucket ASME B30.5 lists the maximum allowable force required to operate hand levers on a crane as: 35 lbs. The cable on the top side of the boom is? Not part of the load An audible signal device needs to be?

In reach of the operator Which type of tagline is the least conductive? Dry polypropylene When lifting over a corner, ground pressure generated by a crane can approach a weight that is: Equal to the weight of the crane and the suspended load