Rigging and Hoisting Practice Exam

These questions are part of the practice quiz. Start practicing

• Which of the following is not an element of a voice signal in rigging and hoisting?
• How many baskets are typically required for most basket hitch rigging?
• What type of condition may be categorized as either a bolted condition or an arcing condition?
• Which component is critical for safety during hoisting operations?
• Do worm gear drives typically require mechanisms to prevent reverse rotation?
• Under which condition would a switchboard likely sustain extensive damage?
• What can be done to inspect the interior of a fiber rope for dirt and grit?
• What is the highest current at rated voltage that a device can interrupt known as?
• What is the minimum safety factor used for chain slings?
• What color is a size 5 roundsling typically associated with?
• What is used to prevent damage to a wire rope by maintaining the diameter of the loop?
• What is the required dimensional relationship between the hoist trolley wheels and the beam flange?
• What type of hitch do roundslings excel at due to their flexibility?
• What is necessary for the effective strength of webbing material?
• What is the horizontal distance from the pivot point of a crane to a point below the hoist hook?
• What components make up a U-bolt clip?
• For a 100-kVA, 3-phase transformer, what is the maximum size of the primary overcurrent device?
• What is the function of a pallet jack?
• What type of crane design is supported by two sets of legs under the bridge beam?
• What type of loading is the application of horizontal force on a boom due to a load not directly underneath the hoist hook?
• What materials are common types of softeners used in rigging?
• Which type of crane is often used for projects requiring mobility?
• How is the "stop" signal performed?
• For a corner-grounded, separately derived system with 500 kcmil conductors, what is the minimum size requirement for the grounded conductor?
• What is a splice commonly done to mark the end of the rope called?
• What is a proof test?
• True or False: Riggers only need to understand basic physics.
• Are deep gouges on metal fittings considered a serious issue?
• In determining the Short-Circuit Current Rating (SCCR) of an entire switchboard, what factor is considered?
• Under what circumstance can a cable assembly shield serve as an equipment grounding conductor?
• In rigging, what aspect is crucial in both indoor and outdoor work?
• Is the grounding electrode conductor for a communications system required to be sized using NEC Table 250.66?
• What does "two-blocking" refer to in crane operation?
• What is a roller assembly that consists of a frame, wheels, and bearings called?
• What should be done if there is doubt regarding the complexity of a lift?
• What is an essential focus when planning for hoisting operations?
• What primary role does a lifting beam serve in rigging?
• Which statement is true regarding load control in rigging?
• True or False: Lifting a load from directly over its center of gravity provides the safest lifting conditions.
• Why is it important to stage cribbing components?
• What principle allows using a higher voltage circuit breaker on a lower voltage application?
• How is the overload setting determined for a motor protection device?
• What involves considering a load as a group of smaller sections, each with its own center of gravity?
• When is it necessary to select a separate overload protective device for a continuous-duty motor?
• How is the "Retract Telescoping Boom" signal executed?
• What is the primary factor influencing the magnitude of available fault current at a service?
• What is the required assumption about power lines until confirmed otherwise by the utility owner?
• In what condition is the rated load of a sling effectively doubled when using a basket hitch?
• What type of protection is provided by overcurrent protection for capacitors?
• What is required to be included on Grade 80 and Grade 100 chains?
• What happens to equipment if it is subjected to fault current above its design capacity?
• Which factor is NOT part of the equation for determining the load capacity of a chain?
• Surge arrester grounding conductors must be connected to:
• What document is essential to ensure compliance with safe rigging practices?
• What is included in the minimum recommended information on an inspection document?
• A(n) outrigger is a structure that extends from the platform of a mobile crane and contacts the ground.
• What effect does the movement of a mobile crane have on its load capacity?
• In rigging, what is the term for an object that maintains its shape while under load?
• Which treatment is commonly used to achieve the desired combination of strength and durability in metal?
• How do screw-pin shackles connect their two "ears"?
• What must all lifts be categorized as before being planned and executed?
• Which hitch is known for providing more controlled load handling compared to others?
• Is hoisting personnel the same as hoisting loads?
• Which type of rope construction exposes more wires to wear at the outer surface, leading to an increased useful life?
• Which formula represents the volume of a sphere?
• How should rope be stored properly?
• Does the figure eight technique of coiling rope add twists in the same direction for each loop?
• If an eyebolts alignment is off, what is a recommended solution?
• According to NEC 240.21, where should overcurrent protection be located?
• What is the typical safety factor for web slings?
• What signal is often used by riggers to communicate during lifts?
• What is the maximum tension a rigging component can withstand while ensuring safety called?
• What occurs if a motor overload protective device is not properly rated?
• What is the required conductor ampacity for a 10-horsepower, 230-volt, single-phase motor?
• Which type of shackle is significantly stronger than a comparably sized carbon steel shackle?
• Which signal is indicated when the load must be hoisted and then moved horizontally?
• What happens to the rated load of the sling when a termination has 90% efficiency?
• What material is primarily used in the construction of a lattice-boom crane?
• What is an air caster used for?
• Are a roundsling's core yarns usually wound or woven together?
• What happens to synthetic fibers in high temperatures that affects their strength?
• What effect do temperatures higher than 250°F (121°C) have on chains and sling fittings?
• Which of the following statements is true about a U-bolt clip?
• What type of crane is composed of a hoist trolley that travels along a horizontal bridge beam?
• Is the statement true or false? The bowline knot is stronger when the working end is on the inside of the loop.
• When should a sling be removed from service?
• Dirt is particularly likely to get into the weave of wire rope. Is this statement true or false?
• What type of inspection is performed by the user before starting work?
• What should synthetic web sling eyes not be put around?
• Which item is not part of lift planning?
• What is the relationship between raising the boom and load radius?
• What is a rule made mandatory by government authority?
• Load weight may be indicated on which of the following?
• How do temporary inrush or surge currents typically affect an electrical system?
• A crane is typically specified by its load radius.
• Can flexible metal conduit serve as an equipment bonding jumper or grounding conductor in certain conditions?
• What is a consequence of high temperatures generated by fault current?
• What method is used to tie two ends of the same rope together?
• A half hitch is commonly used in conjunction with what kind of turn?
• How often should an operator conduct inspections on a hoist?
• What is a consequence of not maintaining proper SCCR ratings?
• What should be regularly inspected to ensure safe lifting operations?
• According to NEC 240.21, where should overcurrent protection be located?
• What defines a telescoping boom crane?
• What is a simple way to secure a coiled rope?
• Is a metallic insulation shield encircling current-carrying conductors allowed to serve as an equipment grounding conductor?
• What do we call the condition that results in fault current flowing outside the normal conducting path?
• What type of rigging involves precise placement and orientation of loads for visual appeal?
• What type of socket uses molten zinc or resin to secure a wire rope?
• What type of circuit breakers are allowed as branch-circuit OCPDs?
• In medium- and high-voltage applications, what aspect of cables is crucial for safety?
• In rigging, it is important to assess which of the following factors before lifting?
• Under what condition must a generator be grounded as a separately derived system?
• What does the term "breaking strength" refer to in rigging?
• What is true regarding supplementary OCPDs?
• What can cause deformation of a chain's link shapes?
• What requirements apply to electrical systems over 1,000 volts when grounded?
• What does it mean if a statement about a load is true?
• True or False: Audible signals can indicate an unlimited set of instructions in crane operations.
• Who is defined by OSHA as capable of identifying hazards in the workplace?
• What is the function of a choker hook?
• Is it true that individual switchboard sections may each have their own marked SCCR?
• What is a potential consequence of using rigging equipment without proper inspection?
• What is the primary purpose of shielding for medium- and high-voltage cables?
• During a chain inspection, how freely should links be able to rotate without binding?
• What is a typical action taken during a lift to ensure safety?
• Which type of fibers are generally stronger?
• If minor damage is found on equipment, what is the protocol?
• Which method is NOT acceptable for identifying an insulated grounded conductor?
• What mechanical process involves shaping metal at ambient temperatures?
• Which knot is formed when two ends of a rope are tied together?
• What type of hook is described as having a wide, deep throat that fits the handles of molds or casting?
• What is a common requirement for certification in rigging?
• What type of knot is used for joining ropes of slightly different diameters?
• What is the purpose of the "dog everything" signal?
• What type of inspection identifies structural integrity without damaging the sling?
• What type of mechanism does a power-operated hoist use to lock the drive when not in operation?
• Which statement accurately describes a top-running crane with an underhung hoist?
• What is the term for the ratio of the diameter of a bend to the nominal diameter of the rope?
• What is an eyenut typically used for in lifting operations?
• What happens to the magnetic or mechanical stress when the peak current is reduced to one third during a short-circuit condition?
• What is a fall zone?
• Which type of wire rope is least susceptible to wear?
• In the context of fiber ropes, what is the safety factor that is typically employed?
• When sizing the system bonding jumper, which rule is used if it is based on the size of the largest ungrounded phase conductor?
• What part of a circuit breaker moves to interrupt the current flow?
• What procedure can be used to determine the center of gravity for a small load with a flat bottom?
• When is it safe to completely unwind the first layer of rope from a smooth drum?
• What kind of system requires independent grounding to minimize fault current?
• What is referred to as the distance from the inside of a sling's upper end fitting to its lower end fitting?
• What should be done with natural fiber ropes that show signs of mold or mildew?
• Which type of fibers are synthetic slings typically made from?
• What is the importance of the rated load mentioned in inspections?
• Which type of short-circuit condition is always associated with higher fault current due to additional resistance from the arc?
• How does the strength of galvanized wire rope compare to bright wire rope?
• How often should crane inspections be conducted?
• What is the function of a boom in crane construction?
• Which of the following statements about panelboards, switchboards, and switchgear is true?
• Is a service conductor considered a tap conductor?
• What is the interrupting ratings on AC-rated circuit breakers applicable to?
• What type of slings have their tops gathered at a common hook or fitting?
• Why should synthetic fibers be preferred over natural fibers in certain situations?
• How is the SCCR of any section of a switchboard determined?
• Which of these materials is NOT typically used for making chains?
• What is a false statement about the primary advantage of synthetic slings?
• What does the term "tendency of a knot under load to change form" refer to?
• To achieve safety in electrical systems, what is essential to correctly size equipment grounding conductors?
• Which statement is incorrect regarding the properties of a tag line?
• Who is responsible for determining the qualifications of personnel engaged in rigging and hoisting activities?
• What is typically the standard safety factor for chain slings?
• What aspect of chain makes it suitable for harsh conditions like excavation?
• In what scenario is a default SCCR assigned to panelboards and switchboards?
• What does a surge arrester do?
• What term describes a bundle of wires twisted spirally around an axis?
• Which equipment is best suited for short-distance horizontal movement of flat-bottomed loads?
• Which of the following is NOT a type of loading on a crane?
• Can drift occur in both mobile and industrial cranes?
• What is one complete set of hoisting actions performed by workers who transport a load from a starting point to a destination?
• Drift in mobile cranes can be caused by what type of actions?
• What does the annealing effect of heat do to chain slings?
• In a hazardous location, how is an equipment bonding jumper installed for flexible metal conduit?
• What does a limit switch do in a hoist operation?
• What does a large pallet signify about a load?
• What is a common method of power transfer in most lever-operated hoists?
• Why are inspection records important?
• Once a load's center of gravity is determined, how should it be hoisted?
• Which devices are used for making electrical and mechanical connections in a fuse?
• Link rated loads are valid for what angle of sling legs?
• What is the angle between the vertical part of the sling and the part surrounding the load called?
• How are short-circuit calculations performed regarding overcurrent protective devices?
• Is it true that if the transfer switch for a generator switches the grounded conductor, it must be grounded as a separately derived system?
• What is capsizing in regard to fiber rope?
• When is a signalperson required during a lift?
• How can the overall center of gravity for a load with defined sections be found?
• True or False: Qualified riggers need training in hand signals.
• What typically encapsulates the conductive link in a fuse?
• Which safety factor is accepted as a minimum for slings, according to best practices?
• Which option describes common methods of grounding systems over 1,000 volts?
• What is hook drift in hoisting operations?
• What must be true for equipment grounding conductors installed with feeders of more than 1,000 volts?
• A cab is a control unit that hangs down from the hoists of smaller industrial cranes.
• Is the live end of a rope defined as the loose end?
• What is the main risk when pulling rope from a coil without untwisting?
• Harmless overloads are commonly created by which phenomenon?
• Can chain slings be shortened by twisting or using bolts?
• What is the primary advantage of synthetic slings?
• What is the defining feature of a freestanding tower crane?
• If a rope is pulled from a coil without untwisting it, what could happen?
• What should always be avoided when rigging with slings?
• How is a grounded conductor typically identified?
• Multiple-leg chain slings are also known as?
• What characterizes a load that is recognized as top-heavy?
• What is a periodic inspection?
• What type of eyebolts have a shoulder and a fully threaded shank?
• What factor can cause momentary high inrush currents during motor starting?
• What is the term for a sprocket-like wheel with chain-link pockets?
• When is it required to size a system bonding jumper for a separately derived system?
• What is NOT a characteristic of a solidly grounded electrical system?
• Which of the following is a device that measures linear force by evaluating torque?
• Is the copper ribbon or tape shield of a medium-voltage cable allowed to serve as the required equipment grounding conductor for a circuit supplied by a 1,500-volt system?
• Is it permissible to use a 600-volt AC rated fuse on a 300-volt DC application?
• What device prevents side loading on eyebolts due to misalignment?
• What is the primary purpose of a sling's reach measurement?
• Are the largest types of cranes typically used for the maintenance industries?
• What occurs due to the tightening of a loop that is restrained from untwisting?
• Which factor is considered the most critical in rigging and lifting?
• Which types of manila rope may be used for lifting applications?
• Is it true that a short-circuit condition typically has a lower current magnitude than an overload current?
• Which of the following signals is used to indicate a stop during crane operation?
• What is the term for the wire wrapping that binds the end of a wire rope?
• At what percentage of rated capacity are slip clutches typically set?
• If a branch-circuit rated fuse does not have an interrupting rating marked, what is its default rating?
• What is the primary function of the signalperson during a lift?
• What are the two standard ampere ratings for a dual-element time-delay fuse for a 10-horsepower motor?
• What can occur if overcurrent protective devices do not react quickly enough to a fault current?
• For flexible metal conduit used in a Class I, Division 2 location, what must it comply with to serve as an effective path for ground-fault current?
• What happens when the trip unit detects an overcurrent in a circuit breaker?
• What does a six-by-seven rope indicate?
• What is the minimum size for the grounded conductor when there is no load on it in a separately derived system?
• In a symmetrical arrangement of four or more support points, each point supports what fraction of the load weight?
• How are tower crane types categorized?
• What is required of the impedance grounding conductor in a grounded system?
• Webbing is available in multiple widths and numbers of what, which determine its strength?
• Which term refers to the low electrical resistance of the fuse link during operation?
• How does moisture affect the longevity of slings made from materials other than chain?
• Do standards have any authority unless adopted by a governing body?
• Why do short-circuit studies calculate a bolted 3-phase fault condition?
• What is the required conductor ampacity for ungrounded conductors supplying a capacitor?
• What is the purpose of the trip unit in a circuit breaker?
• Which hitch effectively doubles the rated load of the sling if the legs remain within 5° of vertical?
• What happens to the links of a chain if they are overloaded?
• What can significantly affect the longevity of a rope's usability?
• Which statement regarding the fault current of an arcing short-circuit condition is accurate?
• What is a treatment on woven material that helps prevent unraveling called?
• What is one major characteristic of double braid rope?
• An impedance grounded system rated 480 volts to 1,000 volts is permitted under what condition?
• What are the UL classes of fuses that include branch-circuit fuses?
• Is the following statement true or false? A square knot is ideal for tying two different sized ropes together.
• Which type of circuit breakers is specifically mentioned for use in AC systems only?
• Which of the following statements about overcurrent protective devices is true?
• In rigging, what does a beam clamp do?
• What is the typical factor of momentary high inrush currents during motor starting compared to normal running current?
• What is the purpose of a safety factor in rigging?
• What signal should be used when the load needs to move horizontally closer to the crane while maintaining elevation?
• Where should synthetic fiber slings be stored to prevent degradation?
• In hoisting operations, what does a slip clutch do?
• What is the primary function of overload relays in motor circuits?
• Which of the following statements about chain costs relative to wire rope is true?
• What is the strength rating that is typically specified for rope?
• What is created when a rope crosses over itself after a turn around an object?
• What should the signalperson monitor when giving the "extend telescoping boom" signal?
• Which type of slings is vulnerable to degradation from ultraviolet light?
• How can a flat-bottomed load be moved across a smooth floor?
• When evaluating a fuse without an interrupting rating, what additional factors should be considered?
• What does asymmetrical rigging indicate?
• What happens to a crane's rated capacity when it operates with an extended boom?
• What are natural fibers vulnerable to?
• Why is it important to have a coordinated selection of equipment and OCPDs?
• What is a significant drawback of using screw-pin shackles?
• Hardware components are typically more durable than which of the following?
• What does a prelift check serve to identify?
• Is an equipment bonding jumper required to be installed inside or outside of flexible metal conduit in a hazardous location?
• How are rough terrain platforms typically constructed?
• What is the main purpose of a limit switch in hoist operations?
• What describes a premises wiring system where power is sourced from equipment other than a service?
• What is the maximum instantaneous trip circuit breaker setting for a 460-volt, 25-horsepower motor?
• Which statement is true regarding torque in the context of hoisting?
• According to NEC guidelines, what standard permits selecting the next standard ampere rating for a conductor?
• What does a motor's service factor of 1.15 indicate about its rated horsepower?
• In a separately derived system, what determines the size of the grounded conductor?
• What does the load triangle indicate?
• What safety hazards may arise from installing electrical equipment with insufficient short-circuit current ratings?
• When using a lifting beam, what must be considered in the load calculation?
• In the NEC, a system over 1,000 volts that is solidly grounded at one point is referred to as what?
• How is a system bonding jumper for a separately derived system sized?
• What type of accuracy do electronic trip units provide?
• What is the purpose of a pry bar in rigging?
• What mechanism prevents a hoist from lifting a load that is over its rated capacity?
• What happens if natural fibers are exposed to moisture?
• Which statement accurately reflects NEC 240.21's requirements for overcurrent protection?
• What must personnel involved in rigging be aware of?
• What type of hoisting typically uses portable cranes capable of being moved to different locations?
• Why is it important to directly connect all metallic shielding?
• What should be avoided when winding rope onto a drum?
• What type of rope consists of completely separate inner and outer braids, which may be made from different materials?
• Which type of rope typically has a higher safety factor due to its construction?
• What is the term for the single turn of rope at the end of one drum wrap?
• Which of the following can potentially affect how a load should be rigged?
• What happens if the slip clutches are set incorrectly?
• What is a frequent inspection?
• Which terms do NOT have the same meaning as "rated load"?
• What type of hook allows for movement without twisting the hoisting line?
• True or False: A cat's paw hitch provides mechanical advantage when tightening.
• A lattice-boom crane is characterized by what construction?
• How can an operator determine the fault current of a circuit?
• Hardware and attachments require gradual drying in fresh, circulating air before storage. Is this statement true or false?
• True or False: The SCCR for a switchboard can be higher than the SCCR of its individual sections.
• Which table in the NEC is required for sizing the grounding electrode conductor for a grounded 12,470-volt system?
• What is indicated by the presence of gaps when inspecting brake linings?
• How does the improper storage of hardware and attachments typically affect their longevity?
• What is the primary purpose of grounding and bonding for communications systems and equipment?
• What type of hoist uses an air motor to provide input torque to a gear drive?
• When is a cable assembly shield permitted to serve as the required equipment grounding conductor?
• What is a mechanical advantage of a telescoping boom crane?
• Is it required to inspect equipment even if it hasn’t been used?
• When working with hoists, what does 'left-lay' refer to?
• How much greater than the flange should the wheel width of a trolley be adjusted during installation?
• What is an exception to the designated signalperson rule during a lift?
• What is the maximum size dual-element time-delay fuse allowed for a 10-horsepower, single-phase motor?
• The rated capacity of a crane is typically higher when the boom is over the side compared to when it is over the rear or front.
• What is a key factor to consider when determining the rated capacity of a crane?
• What is the total material weight of a load consisting of 20 pieces of 4 foot x 10 foot steel sheets that are 1/4 inch thick?
• Chain is often preferred in excavation work due to its resilience against what?
• What determines the strength of a chain and its attachments?
• To determine the load weight, if a load is made from thick, solid parts, its volume is multiplied by the material's what?
• What is an example of minor damage that does not require removal from service?
• What is the method for indicating the "crawler crane travel, both tracks" signal?
• Which organization sets the minimum requirements for safety in the workplace?
• What is typically the first step in selecting an overcurrent protective device?
• Which of the following scenarios emphasizes the importance of planning in lifting operations?
• What is the consequence of insufficient motor braking in hoist operation?
• In Class I, Division 2 locations, what type of conduit is permitted when used with listed threadless fittings?
• What does the term "reach" refer to in hoisting practice?
• Is it acceptable to hoist loads over areas with unauthorized personnel present?
• What construction type do non-time-delay fuses usually employ?
• What bonding means are required to be installed from hazardous locations to a separately derived system?
• Which statement about the center of gravity is true?
• What is one benefit of a current-limiting OCPD?
• What type of grounded electrical system has a direct electrical connection to ground with no intentional impedance?
• What is a primary function of molded case circuit breakers?
• What is the primary risk associated with kinking in ropes?
• What does the size number of a roundsling indicate?
• What is the minimum recommended sling angle?
• What information must identification tags always include regarding the hitch rated load?
• Are written inspection records required for hardware used in rigging?
• Which of the following is true regarding electric hoist systems?
• Is a written plan or special precautions typically required for common lifts?
• What does the term "interrupting rating" specifically refer to?
• What is a type of knot used specifically to tie the ends of two ropes together?
• What characteristic describes symmetry in objects?
• What is the portion of a rope that is not involved in making a knot called?
• What is the significance of understanding the center of gravity in lifting?
• Eyebolts should primarily be checked for what before use?
• Which type of eyebolts should be used for lifting applications?
• What is loading that applies an abrupt force to an object?
• What is the primary focus of electrical safety standards such as NEC?
• What term describes the tension at which a material is expected to break?
• What is the main goal of using hoisting equipment in construction?
• What is the primary purpose of an identification tag on rigging equipment?
• What tool can personnel use to easily rotate or hold a hoisted load?
• What happens if hardware components are stored together in groups?
• Individuals who cannot understand printed instructions or communicate effectively should be allowed to operate a crane.
• What is the purpose of the service factor indicated on a motor's nameplate?
• What is the primary intent of NEC Section 110.10 regarding equipment and overcurrent protective devices (OCPDs)?
• Should knots in slings be untied after they have been pulled tight under load?
• What is the benefit of having links that can rotate freely during inspection?
• What is a primary application of the bowline knot?
• Which of the following is NOT a consideration in selecting equipment regarding SCCR?
• A round turn is typically finished with which type of hitch?
• What is a fixed device used for attaching a hoist to the bottom of a beam?
• Can slings be shortened by knotting or twisting?
• What structural advantage does a jib crane provide?
• What is the consequence of a rope being overloaded beyond its limits?
• Can chain tolerate some degree of failure from its elements while maintaining strength capacity?
• What type of protection does grounding and bonding aim to provide against voltage surges?
• What is the term for a rope's tendency to rotate and untwist when under load?
• What is the minimum size for the bonding jumper for a metal water piping system served by a separately derived system with 4/0 AWG copper conductors?
• Which type of conductor connects a grounding electrode to the bonded components of a separately derived system?
• What is the primary reason for using back splicing on a rope?
• Where must the grounding electrode conductor for a separately derived system be connected?
• What type of load is a latch on a hook best suited to manage?
• Why are there various types of circuit breakers available in the market?
• How should removed brake linings be inspected for deformation?
• What is a continuous line of fibers twisted together known as?
• What weaving technique involves four pairs of alternately twisted strands to create a rope?
• Which of the following correctly describes the fiber rope’s interior inspection?
• True or false: A mobile crane typically has a fixed boom length.
• When should a rope with a break in an entire strand be removed?
• Roundslings can stretch in length when under load. What is the typical percentage of stretch?
• True or false: A top-running crane with an underhung hoist has limited versatility compared to other cranes.
• What is one reason that short-circuit calculations are necessary for electrical systems?
• What is the correct winding direction for a left-lay rope if it is anchored on the left?
• What is the first step to determine fault current in a system?
• As a boom is lowered toward the horizontal, what happens to the load radius and rated capacity?
• An overcurrent that has a flow outside the normal conduction path is classified as what?
• What should be done if the inspection document shows a component must be removed from service?
• What is the purpose of product standards for overcurrent protective devices (OCPD)?
• What type of inspection must equipment meet prior to being used?
• What is a fracture in metal caused by stress and fatigue of repeated forces called?
• What is an adjustable-length attachment used for connecting other rigging components?
• For which type of systems is the NEC concerned with the grounded electrical requirements?
• Which type of operations typically involves permanently installed cranes and hoists, mainly indoors?
• How are OCPD time-current characteristics typically represented?
• When are the services of a qualified engineer necessary?
• What is one potential outcome of not securing a coiled rope properly?
• What is a primary source of fault current contribution?
• All metallic shields, including ribbon tape shields, must be directly connected to which option?
• Are standard safety factors applicable for both steady and dynamic loading?
• What color markers are on polyester webbing?
• What type of cranes are designed to be small and light for road usage?
• Which knot is often recommended for quick release in rigging?
• When using a shackle to form a choker hitch, how should it be connected?
• Is replacing damaged equipment usually more economical than repairing it?
• Are periodic inspections required if the equipment has not been used?
• What should be done if a minor issue arises while the load is suspended?
• True or False: Each job involved with hoisting requires separate training or certification.
• During normal circuit operation, how does the fuse link behave?
• A jib crane is defined as what?
• Type VI web slings are used for what purpose?
• What happens when the fault current is in the current-limiting range of an OCPD?
• Is a qualified signalperson needed to ensure sufficient load-bearing capacity?
• What does Short-Circuit Current Rating (SCCR) pertain to?
• What happens to natural fiber ropes when they are exposed to moisture over time?
• Which component is used in most lever-operated hoists to prevent reverse rotation?
• Which type of lifting equipment is generally considered safest when made of alloy steel?
• What is the general rule regarding hand signals in rigging?
• What is the minimum certified tensile strength of Class 7 webbing per ply?
• In terms of safety, what should a circuit breaker be able to do when a predetermined overcurrent occurs?
• What is an overlap of webbing material that is sewn together known as?
• What is necessary for conducting an arc-flash incident energy hazard analysis?
• Which of the following statements is correct regarding motor branch-circuit protection?
• What defines an endless sling?
• What defines a circuit breaker in terms of operation?
• What device is used to close off the opening of a hook?
• Are screw-pin shackles suitable for most lifting applications?
• What is the minimum size for a copper bonding jumper if the secondary ungrounded phase conductors are 600 kcmil?
• What is the first step in the inspection process for a sling?
• For a 25-horsepower motor with a 32-ampere nameplate current rating, what is the maximum trip setting permitted for the overload protective device?
• Which AC system is permitted to be grounded but not required?
• What is another name for a figure eight knot?
• Which type of surge protection device discharges or bypasses surge current?
• Which statement best describes the nature of SCCR as it pertains to equipment standards?