ISA Utility Specialist (Chapters 1-7) Questions And Answers, Exams of Health Physics

Download ISA Utility Specialist (Chapters 1-7) Questions And Answers and more Exams Health Physics in PDF only on Docsity! ISA Utility Specialist (Chapters 1-7) Questions And Answers In the U.S., enforcement of safety work rules resides with: - correct answer Occupational Safety & Health Administration (OSHA) Utility pruning is the pruning of trees located in the vicinity of power lines for the purpose of __________ __________ __________. - correct answer ensuring reliable service A comprehensive vegetation management program should be __________ rather than reactive, & based on principals of __________ vegetation management. - correct answer proactive; integrated What is a volt? - correct answer a unit of electrical force Major storms or __________ weather events are the usual cause of power outages over large areas. - correct answer catastrophic Without __________, messages can have multiple meanings. - correct answer context ISA BMPs provide a practical guide for implementing __________ __________. - correct answer industry standards ISA Utility Specialist (Chapters 1-7) Questions And Answers Electrical resistance determines how much __________ is required to move electricity along a conductor and is measured in __________. - correct answer energy; ohms When communicating, a person's experience & __________ will influence how the person reacts. - correct answer perceptions Crew mobilization for a storm event is much more rapid from a __________ status. - correct answer standby NERC standards are specific to what line voltages? - correct answer 200 kV & above An important first step in any vegetation management program should be to asses system conditions, which is often done through an __________. - correct answer inventory Which type of cuts are less unacceptable? - correct answer internodal cuts (e.g. topping) ISA Utility Specialist (Chapters 1-7) Questions And Answers On a storm site, cutting should not begin until all risks have been assessed & the __________ approach has been decided & adopted. - correct answer safest Actively __________ can facilitate understanding a customer's perceptions and demonstrate the utility representative's sincere interest in a customer. - correct answer listening As clearance work progresses, __________ between crews & dispatcher is critically important to determine locations of downed or damaged lines. - correct answer communication __________ negotiation uses the best aspects from both hard & soft bargaining. - correct answer interest-based An energized wire or conductor in a circuit is also known as a __________. - correct answer phase Fast-growing, problem species are sometimes known as __________ __________. - correct answer cycle busters Flush cuts damage which tissues? - correct answer the trunk ISA Utility Specialist (Chapters 1-7) Questions And Answers Clearing for a new distribution line is likely to be paid for by a __________ budget. - correct answer capital Surface temperatures at the point of contact with high voltage can reach __________ degrees F. - correct answer 1,000 __________ __________ occurs when someone touches an energized fixture. __________ __________ can occur when a person touches a conductive object that is in contact with an energized fixture. - correct answer direct contact; indirect contact A grid-based scheduling system is most likely to be used by highly __________ utilities. - correct answer urbanized Why is utility pruning done? - correct answer to maintain safety and rights-of-way Reactive maintenance is often called __________. - correct answer hotspotting True or False? ISA Utility Specialist (Chapters 1-7) Questions And Answers Guy wires are intended to help support poles but may become unintentionally energized. - correct answer true One of the highest personal risks in a storm is __________. - correct answer fatigue When trying to negotiate mutually agreeable solutions & gain commitment based on customer interests, the focus should be on __________, no on specific individuals. - correct answer issues A __________ is similar to a fuse or cutout, but it resets after a predetermined time period. - correct answer re-closer Always consider that all lines are __________. - correct answer energized Tree replacement programs are an important aspect of many utility customer relations programs & focus on selecting: - correct answer the right tree for the right place If a structurally weak tree were on or close to the utility right-of-way, __________ __________ & __________ would be considered targets. - correct answer utility lines & equipment ISA Utility Specialist (Chapters 1-7) Questions And Answers Besides pruning, __________ & __________ treatments are often part of an integrated vegetation management program. - correct answer mechanical & herbicide When installing underground conductors, __________ should be used in tree root protection zones. - correct answer tunneling Crew members should always refer customer relations questions about the status of power restoration to: - correct answer the utility The __________ has been adopted by most states & regulatory bodies throughout the U.S. as the recognized document providing safety provisions for those working with or near electric supply equipment. - correct answer NESC (National Electrical Safety Code) Customer relations are important during a storm response, but are necessarily a lower priority than: - correct answer safety & power restoration Because most electrical lines are located on private property, utilities typically secure __________ to facilitate maintenance of their lines. - correct answer easements ISA Utility Specialist (Chapters 1-7) Questions And Answers The safety acronym S.T.A.R. is valuable for preventing errors, & stands for: - correct answer Stop, Think, Act, Review Distribution transformers typically __________ primary circuit voltage for the end user. - correct answer reduce Vegetation can be chemically controlled in a selective manner with either a selective __________, or a selective __________. - correct answer herbicide; application True or False? There are no published safety data related specifically to utility arboriculture. - correct answer true Communication between vegetation managers, contractors, supervisors, & workers should be both __________ & __________. - correct answer written & verbal Mowing often __________ woody stem count. - correct answer increases Amp: - correct answer the measure of electrical current ISA Utility Specialist (Chapters 1-7) Questions And Answers When responding to a storm emergency, the highest priority for crews should be to: - correct answer work on the circuits feeding hospitals Because customers are well-informed & expect professionalism, a __________ __________ is the best utility representative to discuss line clearance with them. - correct answer utility arborist Service lines and secondary distribution lines usually carry voltage between __________-__________ volts. - correct answer 120-240 Contract tree crew members can reduce customer concerns about utility work on their property by: - correct answer dressing & conducting themselves professionally When arriving on a storm site, the highest priority for the crew foreman is to: - correct answer immediately identify & locate downed electrical lines Long-term planning is __________, while short-term planning is __________. - correct answer strategic; tactical ISA Utility Specialist (Chapters 1-7) Questions And Answers Research has shown that trees are more likely to cause outages on __________-phase lines than on __________-phase lines. - correct answer three; single Utility pruning is mainly conducted to provide __________ from power lines. - correct answer clearance Preventing vegetation-caused outages receives highest priority on __________ __________. - correct answer transmission circuits The minimum approach distance for non-qualified line clearance personnel from energized conductors 50 kV and less: - correct answer 10 feet A revision of the ANSI Z133 standard intended to be the standard reference for those engaged in tree care work: - correct answer ANSI Z133.1-2000 An easement agreement typically gives a utility a __________ __________ & __________ on the property owned by another party. - correct answer defined interest & use ISA Utility Specialist (Chapters 1-7) Questions And Answers The condition that allows electricity to flow from one object to another is called: - correct answer potential When significant work such as removals or herbicide use is to take place, __________ __________ is necessary. - correct answer written authorization The time when crews return to normal working hours after being on-call or on 24-7 status: - correct answer stand down A results-based strategy designed to target trees as close as possible to the time that they interfere with facilities is known as __________- __________-__________ management. - correct answer just-in-time What does the "I" stand for in IVM - correct answer Integrated Which clause of the Occupational Safety & Health Act requires that employers to provide their employees with working conditions that are free of known dangers? - correct answer General Duty clause Utility pruning should use __________ & __________ pruning principals - correct answer natural & targeted ISA Utility Specialist (Chapters 1-7) Questions And Answers Each worker is responsible for their own __________. - correct answer safety For arboricultural operations in the U.S., the most important standard to follow when implementing a safety program is: - correct answer ANSI Z133 A __________ __________ structure is a prioritized outline of job components that must be completed for a successful project outcome. - correct answer work breakdown Crown reduction removes main branches to lower limbs no less than __________ the diameter of the original limb. - correct answer 1/3 What brush factor best determines low volume foliar versus high volume foliar application appropriateness & selection? - correct answer density What is a Watt? - correct answer a measure of electrical power A tool used to determine the severity & likelihood of a risk: - correct answer 5 x 5 Matrix ISA Utility Specialist (Chapters 1-7) Questions And Answers Herbicides are the best option to reclaim tall, overgrown or ignored urban brush areas. - correct answer false If the coating on a weatherproofed conductor falls off, the conductor will often __________. - correct answer deteriorate The __________ __________ __________ is a systematic method for command, control, & coordination of emergency response. - correct answer incident command system When you're using __________-__________ __________, you "focus on interests, not positions". - correct answer interest-based negotiations Most utilities, municipalities, & large tree contracting firms have designated storm processes & a designated __________ __________ __________ where conditions are monitored & decisions are made. - correct answer emergency operations center Under Easement Law, the owner is entitled to certain rights that are necessary for the: - correct answer full enjoyment of the easement True or False? ISA Utility Specialist (Chapters 1-7) Questions And Answers IVM is a system of managing plant communities on rights-of-ways. - correct answer true Time & material contracts are generally __________ risk factors for contractors & __________ risk for utilities. - correct answer low; high The theory of incident prevention that considers most incidents to be caused by unsafe acts is called the __________-__________ theory. Pioneered by Herbert Heinrich - correct answer behavior-based __________ __________ __________ can be used to reduce growth and lengthen time between cycles. - correct answer tree growth regulators Ohm's Law describes the relationship between: - correct answer voltage, current, & resistance __________ __________ contracts are gaining popularity because the responsibility for productivity, work planning, & scheduling rests with the contractor. - correct answer unit price ISA Utility Specialist (Chapters 1-7) Questions And Answers Utilities will experience resistance to the performance of vegetation management work on a customer's property. This resistance is typically referred to as: - correct answer an easement dispute Personnel from external organizations who travel to a storm area are generally paid the higher of either their __________ __________ rates or the established __________ __________ rates. - correct answer home pay; local pay Manual methods for vegetation control will be done with... - correct answer hand-used tools Which pruning style is most effective in preventing regrowth when pruning hardwoods? - correct answer crown reduction The __________ __________ is an illustration of Heinrich's principles of accident prevention. - correct answer accident pyramid Effective public relations programs include timely communication of: - correct answer Industry BMPs ISA Utility Specialist (Chapters 1-7) Questions And Answers All of the following are approaches to work planning: - Cycle-based - Results-based - Crisis management - correct answer true Formula for power: - correct answer Power = Volts x Current (P = V x I) Internal & external __________ is key to a successful IVM program. - correct answer communication Clearance for decurrent hardwoods growing directly under conductors is best obtained by __________ __________. - correct answer crown reduction SWOT analysis is a strategic planning tool & an acronym, meaning: - correct answer Strengths, Weaknesses, Opportunities, Threats The theory that considers workplace injuries to be caused by /a/ number of contributing factors, rather than /the/ number of contributing factors: - correct answer multiple causation theory ISA Utility Specialist (Chapters 1-7) Questions And Answers A __________ is another name for a generating plant, and is the source of most power in the U.S. The most common sources for this power are __________ __________, __________ or __________ turbines, & __________ __________. - correct answer powerhouse; fossil fuels, wind or water turbines, & nuclear reactors A safety __________-__________ is a proactive measure in which all operations are brought to a halt until relevant safety information can be provided to response workers. - correct answer stand-down Information sent to landowners of the intention of a utility to undertake line clearance work on their trees: - correct answer notification Relative to the cost of routine maintenance, reactive maintenance can cost __________ times as much. - correct answer five Organizations such as electric utilities may declare an __________ independent of official government declarations. - correct answer emergency Tree-caused physical damage to conductors, electrical equipment, and/or supporting structures is an example of a __________ failure. - correct answer mechanical ISA Utility Specialist (Chapters 1-7) Questions And Answers A measure of the performance of a utility in terms of the length of time customers are off line as a result of a service interruption - correct answer customer minutes lost (CML) Excurrent trees: - correct answer one main leader (e.g. pines, spruce) A __________-__________ organization is a group that takes a systematic approach to safety, recognizing that humans are imperfect & that errors have to be considered in the context of the system in which they occurred. - correct answer high-reliability Formula for Customer Minutes Lost (CML): - correct answer length of interruptions in minutes X number of customers off line The process of exchange of views & offers in order to reach an agreement: - correct answer negotiation What are the three parts to the constraint triangle? - correct answer time, cost, & scope ISA Utility Specialist (Chapters 1-7) Questions And Answers On the Saffir-Simpson Hurricane Wind Scale, a storm must be at least which category to be considered major? - correct answer 3 Death from electric shock is known as: - correct answer electrocution Type of preventative maintenance that uses field data to diagnose & monitor a condition or system. - correct answer predictive maintenance (aka on-condition maintenance) The voltage between the feet of a person standing near an energized, grounded object: - correct answer step-potential A method of applying herbicides or TGRs to trees through the soil by excavating a shallow trench in the soil around the base of the trunk & pouring the compound into the trench - correct answer soil drench A method of negotiation in which one party concedes to many positions, even to their own disadvantage, on order to accommodate the other party: - correct answer soft bargaining ISA Utility Specialist (Chapters 1-7) Questions And Answers Soil removed during trenching should be stored where? - correct answer on the side of the trench that is away from the tree Contact with only __________ milliamps can make a person unable to release their grip. __________ milliamps can cause respiratory paralysis. __________ milliamps can cause ventricular fibrillation, leading to death. - correct answer 16; 20; 100 Governments sometimes mandate clearance distances, maintenance intervals, inspection intervals, or require available resources to be focused on: - correct answer the worst-performing circuits (in terms of VM) A standardized method for improving the overall effectiveness of emergency response is known as the __________ command system. - correct answer incident Vegetation that has recently been mowed & before regrowth - correct answer cut stubble ISA Utility Specialist (Chapters 1-7) Questions And Answers A process of negotiation whereby both parties concede some ground to reach a mutually acceptable solution: - correct answer interest-based negotiation __________ amps may cause cardiac arrest & organ damage, & __________-__________ amps will likely kill outright. High voltage contact usually kills outright regardless of amperage. - correct answer 2; 15-20 Utility pruning should be performed at intervals that minimize the need for __________ responses, but not so frequently that costs exceed benefits. - correct answer reactive Circuits that carry the highest voltage to other parts of the distribution network are called: - correct answer primary circuits Advantages of providing temporary accommodations for a large-scale disaster response: - correct answer - Oversight - Economies of scale - Communication A method of applying herbicides or TGRs to trees through the soil via injection directly into the root zone - correct answer soil injection ISA Utility Specialist (Chapters 1-7) Questions And Answers storm recovery Machines designed to cut vegetation by means of a moving blade, chain, or other cutting device - correct answer flail-type cutter Two classifications of arborists that work inside 10-foot minimum approach distances: - correct answer incidental & qualified Regulations that address & specify minimum clearance distances & also address proper planning, construction techniques, defensible space, vegetation control, & land uses; developed by the International Fire Code Institute: - correct answer Urban-Wildland Interface Code (UWIC) Crisis management is an indicator of chronic __________. - correct answer underfunding A model for the production of reaction zones - correct answer Compartmentalization of Decay in Trees (CODIT) ISA Utility Specialist (Chapters 1-7) Questions And Answers The potential between live conductors or between live & nuetral conductors is known as __________-to-__________ potential. - correct answer phase-to-phase A method to minimize tree-caused outage by conducting a detailed analysis of the system, vegetation conditions, outage history, infrastructure, etc. & identifying a range of preventable maintenance that have the potential to provide greater reliability & cost efficiency than just pruning/removing vegetation - correct answer reliability- centered management (RCM) __________ line clearance applies when an electric hazard exists but work is not being done for the utility. __________ line clearance applies to being in proximity to electric hazards on behalf of the utility. - correct answer incidental; qualified The rights that provide the utility the privilege of installing & maintaining its facilities in public roadways: - correct answer franchise rights Completing all necessary line clearance on a feeder or circuit basis: - correct answer circuit work ISA Utility Specialist (Chapters 1-7) Questions And Answers Disaster Management Cycle: - correct answer Planning>Response>Recovery/Lessons Learned>Mitigation>process starts over What is a phase? - correct answer an energized wire The most commonly used Tree growth regulators (TGRs) work by inhibiting the production of __________. - correct answer gibberellin An individual who is familiar with the equipment & hazards in line clearance & has demonstrated the ability to perform the techniques involved: - correct answer qualified line-clearance arborist The length of a branch or trunk to be considered when evaluating the combination of forces that could lead to failure: - correct answer lever arm Most utilities list __________ __________ as a reason for maintaining vegetation, but customers often underestimate the risk. - correct answer public safety Protective equipment is designed to shield the system from: - correct answer faults, short circuits, & current surges ISA Utility Specialist (Chapters 1-7) Questions And Answers __________ __________ are designed to redirect electrical surges to the ground instead of allowing them to continue down the circuit. - correct answer lightning arrestors Mixing of chemicals should be done with a buffer of at least __________ ft from a body of water or wetland. - correct answer 100 ft __________ __________ provide defense against inadvertent re- energization. - correct answer protective grounds A tropical cyclone with wind speeds 74 mph or greater: - correct answer hurricane Issuing press releases that describe upcoming projects & their importance to quality service are __________ efforts that can offset negative media coverage. - correct answer proactive British Standards Institute Recommendations for Tree Work - correct answer BS3998 A tree or branch coming into contact with an energized conductor, causing a short circuit is an example of an __________ failure. - correct answer electrical ISA Utility Specialist (Chapters 1-7) Questions And Answers Relationships that indicate when tasks in the work breakdown structure begin & end: - correct answer dependencies Level _____ assessments review large populations of trees from a specified perspective to identify trees with obvious defects (e.g. walk- bys, drive-bys, aerial patrols); aka limited visual assessments - correct answer 1 If a downed line is laying across a vehicle, it is best for the people inside to: - correct answer stay inside A typhoon is a regional term for: - correct answer a severe tropical cyclone Repeatedly answering questions that are similar, such as those that may be asked of a contractor in the field, can lead to __________. - correct answer desensitization Two types of failure modes: - correct answer mechanical & electrical Three types of dependencies: - correct answer mandatory, discretionary, & external ISA Utility Specialist (Chapters 1-7) Questions And Answers An interruption in the flow of electricity that could lead to fire or an outage - correct answer electrical shorts A survey of the volume of work; may be done by comprehensive inventories or sampling: - correct answer workload assessment The Saffir-Simpson Scale is a classification scheme for __________ intensity based on maximum surface __________ __________ & the type & extent of __________. - correct answer hurricane; wind speed; damage Customer-friendly language should keep __________ to a minimum because it can intimidate customers & confuse the message. - correct answer jargon Which type of dependency is one in which one task cannot begin until another activity has ended? - correct answer mandatory dependency slightly enlarged portion of a stem where leaves & buds arise - correct answer node ISA Utility Specialist (Chapters 1-7) Questions And Answers Cutting back a tree to buds, stubs, or laterals not large enough to assume apical dominance; also known as rounding over, heading, or heading back (a bad practice) - correct answer topping What communication method is most effective for engaging with customers in real time about utility emergencies? - correct answer social media A local storm produced by a cumulonimbus cloud & accompanied by lightning & thunder: - correct answer thunderstorm A wire connection between energized conductors & other electrical equipment (e.g. transformers): - correct answer tap __________ __________ are scheduling tools that provide a visual means of tracking a project. - correct answer Gantt charts The maximum incompatible plant pressure (species, density, etc.) allowable before unacceptable consequences develop: - correct answer tolerance level The process by which personnel become indifferent or disconnected from customers & their concerns: - correct answer desensitization ISA Utility Specialist (Chapters 1-7) Questions And Answers A complex of thunderstorms that travels more than 240 miles, with wind speeds greater than 58 mph: - correct answer derecho In electric generation, the number of magnet revolutions per second: - correct answer Hertz Expenditures that do not generate income: - correct answer cost center *Tree Age:* - Young = _____% of life expectancy - Mature = _____-_____% of life expectancy - Overmature = _____% of life expectancy - correct answer <20%; 20-80%; >80% Specialty pruning technique used on large, maturing trees that results in the development of callus at the cuts; used to maintain trees at a specific height - correct answer pollarding To be __________ is to be understanding, aware of, & sensitive to the feelings, thoughts, & experiences of others. - correct answer empathetic ISA Utility Specialist (Chapters 1-7) Questions And Answers Expenditures that generate revenue: - correct answer profit center Repeated momentary interruptions in the same place due to the same cause: - correct answer intermittent faults For clearing dense vegetation during initial establishment or reclaiming neglected or overgrown rights-of-way, __________ control methods are most efficient & cost effective. - correct answer mechanical Six-level numerical, damage-based classification of estimated wind speeds, usually applied to tornadoes: - correct answer Enhanced Fujita Scale Process of branch removal in which the cuts are made in relation to the positions of the branch collar & branch bark ridge; also know as target pruning - correct answer natural pruning A __________ is a bypass of an intended conducting path. The current bypassing the designed conducting path is called a __________ __________. - correct answer fault; short circuit ISA Utility Specialist (Chapters 1-7) Questions And Answers Transmission circuit breakers operate in response to abnormally high __________, abnormally low __________, & unequal __________. - correct answer amperage; voltage; current __________-__________ __________ uses aerial photographs or satellite imagery followed by ground checks to determine the nature of plant communities on a site. - correct answer cover-type mapping The area where a branch joins another branch or the trunk: - correct answer branch collar Pre-arranged cooperation between utilities to ensure a certain level of response is available in the event of emergencies: - correct answer mutual assistance program In response to the 2003 blackout, NERC developed a standard that requires North American utilities to have systematic programs that effectively prevent outages on the bulk transmission system. This standard is called: - correct answer FAC-003 ISA Utility Specialist (Chapters 1-7) Questions And Answers __________ & __________ contracts are based on hourly rates for labor & equipment, & payment is for time worked. - correct answer time & material The tree protection zone for a mature tree with a moderate tolerance to disturbance should be __________ ft per inch of DBH. - correct answer 1 ft The increased growth of remaining unpruned shoots after pruning - correct answer shoot invigoration An energized conductor or wire in a circuit is called a __________. - correct answer phase (identified as ∅) __________-__________ contracts are time & material contracts modified to promote productivity & work quality. - correct answer performance-based The area of a pipeline right-of-way above the pipe & extending both ways to a specified distance: - correct answer pipe zone Storm response requiring movement of crews from outside the immediate vicinity is called __________-__________ response. Storm ISA Utility Specialist (Chapters 1-7) Questions And Answers response that doesn't require this is called __________-__________ response. - correct answer large-scale; small-scale Secondary or subordinate branches - correct answer laterals The value which if exceeded could expose a widespread area to instability or cascading outages: - correct answer interconnection reliability operating limit (IROL) Type of contract where vendors submit a single price for a set amount of work: - correct answer lump-sum contract (aka fixed-price contract) An example of a cultural control technique in a right-of-way is: - correct answer planting food crops Method of reducing the height or spread of a tree by performing appropriate pruning cuts - correct answer crown reduction The most common VM rule adopted by states in the U.S. is the: - correct answer National Electrical Safety Code (NESC) ISA Utility Specialist (Chapters 1-7) Questions And Answers utilities Four characteristics of trusted leaders: - correct answer - Constancy - Congruity - Reliability - Integrity Four steps to establish Tree Protection Zone: - correct answer - Evaluate species tolerance - Identify tree age (young, mature, overmature) - Find the distance from the trunk that should be protected based on trunk diameter - Calculate the optimum radius for the tree protection zone Pruning to develop structure, form, & appearance of topped or damaged woody plants: - correct answer restoration pruning The removal of branches from the middle of the crown of a tree to provide clearance, but some branches are left overhanging the wires - correct answer through-pruning Goals should be based on: - correct answer key performance indicators ISA Utility Specialist (Chapters 1-7) Questions And Answers (KPIs) A protective device that limits the number of customers that lose service after a fault: - correct answer line sectionalizer The ability in some plants to suppress growth of nearby species through the release of chemicals: - correct answer allelopathy A rule of thumb where 90% of the time 3 cuts cuts can give 90% of the required clearance - correct answer 90-3-90 Rule True or False? Aluminum wire is more conductive than copper wire. - correct answer false What does SMART stand for? - correct answer Specific, Measurable, Achievable, Relevant, Timely True or False? Oil-based pesticides are less easily absorbed through the skin than water-soluble pesticides. - correct answer false; they are MORE easily absorbed than water-soluble solutions ISA Utility Specialist (Chapters 1-7) Questions And Answers A plant growth substance that controls cell elongation - correct answer gibberellin Another name for an employee evaluation: - correct answer performance appraisal What is electromotive force? - correct answer another name for voltage Most herbicides used in VM are in which toxicity category? - correct answer Category IV: Relatively nontoxic An upright, adventitious shoot arising from the trunk or branches, also (incorrectly) called a sucker - correct answer water sprouts __________-__________-__________ laws prohibit mandatory union membership as a condition of employment. - correct answer right-to- work The common return path for an electrical circuit is the __________ wire. The common return path for an electrical system is the __________ wire. - correct answer ground; neutral ISA Utility Specialist (Chapters 1-7) Questions And Answers The most common cause of tree-related service interruptions is: - correct answer mechanical tear down failure Systematic process used to identify, analyze, & evaluate tree risk: - correct answer tree risk assessment Trees or branches that fall from outside utility easement have a __________ impact on service reliability than trees growing into & contacting power lines. - correct answer greater The main requirements of FAC-003 are that vegetation is to be managed to keep it from growing inside __________ distance, maintenance to be __________, control centers to be notified of __________ __________, corrective actions must be taken against __________ __________, vegetation inspected __________, & annual completion of __________. - correct answer flashover; documented; imminent threats; work constraints; annually; work Six steps of IVM: - correct answer - Set objectives ISA Utility Specialist (Chapters 1-7) Questions And Answers - Evaluate the site - Define action thresholds - Evaluate & select control methods - Implement control methods - Monitor treatment & quality assurance __________ uses reduction cuts to reduce branch length relative to other similar branches. - correct answer subordination An electric facility that is used to route power through various circuits (it does not change voltage): - correct answer switchyard Minimum vegetation clearance distance (MVCD) is the calculated distance between conductors & vegetation to prevent __________- __________, for various __________ & __________, that is used to design __________ facilities. - correct answer spark-over; altitudes & voltages; transmission Trees that have been rounded over or topped in the past but later converted to directional pruning may have extensive __________ growth on decayed stubs. - correct answer epicormic ISA Utility Specialist (Chapters 1-7) Questions And Answers The distance inside of which vegetation cannot encroach: - correct answer MVCD The target of IVM is: - correct answer incompatible plants As more of a tree's crown is removed, subsequent shoot growth is likely to __________. - correct answer increase The electrification of a wire by passing it through a moving electromagnetic field: - correct answer induction A __________ is a substance that has an oral LD₅₀ lower than 50 mg per kg of body weight, or a dermal LD₅₀ lower than 200 mg per kg of body weight. - correct answer poison Maintenance that is performed before an occurrence such as a service interruption is termed __________, while maintenance that is performed in response to such an occurrence is termed __________. - correct answer preventive; reactive Graphical representation of alternating current: - correct answer sine waves ISA Utility Specialist (Chapters 1-7) Questions And Answers Vegetation, height, density, or other conditions that trigger specific control methods are called __________ __________. - correct answer action thresholds An example of the laws intended to prevent fires caused by trees contacting wires is the: - correct answer Urban-Wildland Interface Code True or False? The NERC Transmission VM Program requires utilities to have documented VM programs in place. - correct answer true The population of trees that could now or in the future interfere with the operation of utility facilities: - correct answer utility forest A __________ __________ is electrical potential over a specified distance. - correct answer voltage gradient The wire-border zone philosophy is applied through __________- __________ conversion. - correct answer cover-type Hedges are often maintained by periodic __________. - correct answer shearing ISA Utility Specialist (Chapters 1-7) Questions And Answers System that automatically collects data & enables remote control switching operations: - correct answer supervisory control and data acquisition (SCADA) What are the three primary climatic factors that influence herbicide & TGR degradation? - correct answer moisture, temperature, & sunlight A __________ __________ cut removes the smaller of two branches at a union. A __________ cut removes the larger of the two branches. - correct answer branch removal; reduction The sum of inductive resistance & capacitive resistance: - correct answer impedance Low-volume foliar broadcast treatments put out _____-_____ gal/ac of herbicide solution. - correct answer 5-25 A __________ cut removes a branch either between nodes, or to a smaller lateral branch. - correct answer heading ISA Utility Specialist (Chapters 1-7) Questions And Answers Electricity is usually generated at distribution voltage, typically between _____-_____ kV - correct answer 7.5-13.8 kV Which part of the body most readily absorbs pesticides? - correct answer eyes Shoot arising from a dormant bud or from newly-formed adventitious tissue: - correct answer epicormic shoots The utility system's __________ allows the efficient transmission of electricity to areas of greatest need at a particular moment, which also makes the system more susceptible to __________. - correct answer interactivity; blackouts __________ __________-__________ is a technique in which non- translocatable herbicides are applied to control specific branches growing toward utility facilities. - correct answer chemical side-pruning Pruning practice in which an excessive number of interior lateral branches are removed, resulting in a concentration of growth at branch end: - correct answer lion tailing ISA Utility Specialist (Chapters 1-7) Questions And Answers Name for palm leaves: - correct answer frond Each of the two coils in a transformer has a different number of turns. The ratio of one to the other is the __________ ratio, while the proportion of the primary to secondary voltage is the __________ ratio. - correct answer turns; voltage Proper mixing protocol: - correct answer - Half-fill the tank with diluents (water or oil) - Add concentrate or diluted concentrate - Add any supplemental adjuvants - Add remainder of diluents If they aren't removed, frequent pruning will be required for __________ trees because they cannot be reduced in height or directionally pruned - correct answer palm Secondary wire that has two insulated conductors and a neutral wire wrapped around a supportive cable: - correct answer triplex wire ISA Utility Specialist (Chapters 1-7) Questions And Answers A chemical is classified as relatively nontoxic when it has an oral LD₅₀ of _____ mg/kg or more, or a dermal LD₅₀ of _____ mg/kg or more. - correct answer 5,000; 20,000 When should a tree be removed? - correct answer when it costs as much or more to prune it, when it poses unacceptable risk, or when the species doesn't respond well to pruning Which type of current is typically used in power supplies? - correct answer alternating current IVM is an __________-based, systematic process of modifying plant communities & controlling __________ vegetation on a site, with an underlying philosophy derived from integrated __________ management. - correct answer ecosystem; incompatible; pest __________ __________ uses certain herbicides selectively applied to the side of the right-of-way. - correct answer chemical pruning Transmission lines terminate at __________. - correct answer substations ISA Utility Specialist (Chapters 1-7) Questions And Answers Handling & use of ready-to-use & diluted concentrate formulations in closed delivery systems: - correct answer closed chain of custody Voltage use by North American utilities ranges from _____ V-_____ kV. - correct answer 120 V-765 kV Acute toxicity of pesticides is determined through tests involving a large number of animals. The oral or dermal lethal dose that kills half the animals within the two-week test period is known as the __________ (measured in __________). The inhalation concentration that kills half the animals within the two-week test period is known as the __________ (measured in __________). - correct answer LD₅₀ (mg/kg of body weight) LC₅₀ (mg/l or ppm) __________ __________, the principal protective devices in distribution substations, are designed to operate in as little as 10 Hz. - correct answer circuit breakers The lower the LD₅₀ or LC₅₀, the __________ toxic the pesticide. - correct answer more Electrical flow in an unintended direction: - correct answer backfeed