CUSP - T&D EXAM STUDY GUIDE 2025/2026 VERIFIED Question Bank with Correct Detailed Answers and Rationales || 100% GUARANTEED PASS BRAND NEW VERSION

A transmission crew is sent to replace insulators on a spread leg lattice steel tower. There are three 345 kV lines in the corridor. The line is switched out and three men ascend the tower to ground the phases to the tower steel. After assisting with materials assembly a 4th lineman walks to the tower preparing to climb to the work area. Still on the ground; he touches the tower with his hand and receives a severe shock. What is the most likely reason? - Answer️Grounding of the phases to the tower electrically coupled induction from the phases onto the tower increasing step and touch potential between the tower steel and earth where the lineman was standing. What condition has the greatest effect on induced currents? - Answer️Circuit load on a nearby phase. Equipotential mats and barricades are protective measures that might be used: - Answer️When a truck is grounded to a system neutral. Personal protective grounds are sized on the basis of: - Answer️Time and Current. Bonding a metal aerial basket to grounded phase: - Answer️Equalizes ground potentials between basket and phase. Best practice for covering conductors for the protection of the workers dictates that: - Answer️Both primary and secondary conductors, in reach, not being worked on being covered. Under CSA Standards, which equipment operator classification requires prescribed training and an employer's certification of training and qualification? - Answer️All-terrain forklift. A primary difference between provincial regulations and federal regulations is NOT: - Answer️The provincial regulation includes federal government workers OR provincial regulation may not be as stringent as the federal regulation (none of the above). A forklift triangle of stability is found: - Answer️Between the centerline of the rear axle and the front wheels. The plan for prevention of exposure to hazardous chemicals in the workplace will most likely be found in: - Answer️The hazard communication plan (WHMIS). Where is an employer's procedures for reporting emergencies, evacuations and accounting for employees are found? - Answer️In the Emergency Management Plan The degree of training shall be determined by: - Answer️The risk to the employee for the hazards involved. Which best describe practices that are proven to prevent incidents in the workplace? - Answer️Hazard analysis, engineering controls, safe practices and training. The relationship between safety and productivity is best described by the statement: - Answer️Simply put, when safety improves productivity also improves. When written procedures and training do not cover a complex condition discovered in the field, the worker is put into: - Answer️Knowledge-based decision-making mode. In the classic model, the most successful safety programs are characterized by safety leadership from what groups? - Answer️All employees from executive managers to craft workers. The first step in the process for selecting specific PPE is: - Answer️Hazard assessment that includes identifying risks. A joint safety and health committee is best described as: - Answer️Employers-sanctioned group of supervisors and employee representatives with the authority to review and correct hazards. Of the choices below, which best demonstrates how leaders develop effective employer-employee relationships? - Answer️Being visible, setting the example, communicating goals, consistent accountability for good and bad performance. The acronym MSDS stands for: - Answer️Material Safety Data Sheets Annual total incident rates and lost time data are examples of: - Answer️Lagging Indicators The purpose of root cause analysis is: - Answer️Discovering the single most likely cause of an incident. What is the best example of administrative controls? - Answer️Conduct training and surveys of work sites to reduce at-risk behaviors. In a facility emergency evacuation plan, which element is NOT required? - Answer️Floor markings that indicate pathways to the evacuation exit. In a facility emergency evacuation plan, which elements are required? - Answer️1. Procedures to account for all employees after an evacuation. 2. Procedures for employees who stay behind to operate critical plant operations. 3. Procedures for contacting emergency response. Which is the most likely reason to route traffic away from an excavation on a job site? - Answer️To limit roadway vibration from affecting the excavation. In hierarchy of hazard prevention, the preferred order of controls are: - Answer️Engineering, Administrative, Work Practice and PPE. Hazardous atmospheres pose a danger to both life and health. Which concentrations below might result in a worker experiencing confusion or loss of consciousness? - Answer️12.5 --- 17.5% oxygen in air. What best describes the sound-level requirements for backup alarms on construction site vehicles? - Answer️Louder than that of the surrounding noise levels. A foreman is planning for safety with his crew, but can't find rules for the task in their safety manual. To plan, he begins to analyze the unfamiliar task step by step, relying on years of experience to assure the work will be performed safely. This is an example of: - Answer️Knowledge-based problem-solving. Risk analysis reflects on leadership and can be used to select future crew leaders.: - Answer️when at-risk behaviors are identified, employee exposures can be limited. True or False: A management-driven safety culture that relies on employee participation teams may be described as driven from the top and supported from the bottom. - Answer️True. In determination of why people do what they do, an antecedent is best described as: - Answer️Anything that comes before a behavior that triggers or influences the behavior. A latent error involves: - Answer️Incomplete instruction or procedure that results in an error. In developing a workplace safety culture, what elements of a safety program are most likely to result in success? - Answer️Management and employee ownership of safety, safety training opportunities, goal setting and reward. What best describes a fundamental of safety excellence? - Answer️Safety standards, review and performance are woven into every wohrkplace activity. Which training technique relies on mentoring and experience? - Answer️On-the-job instruction. What best describes a lagging indicator in measuring safety performance? - Answer️Total injury rates and lost time stats are regularly reviewed and published. Safety training is needed when a new employee reports to work or when an employee has been reassigned. What conditions require additional safety training? - Answer️1. New equipment and processes are introduced. 2. New information is available. 3. Procedures have been revised. Why do hazard controls need to be measured and audited? - Answer️To ensure that control methods are working and appropriate for the hazard. What behaviors are examples of leadership values? - Answer️1. Following all rules and procedures. 2. Treating everyone with dignity and respect. 3. Never breaking a promise or commitment. What condition would require re-evaluation of an open trench by a competent person? - Answer️Moisture of mud is discovered in the trench bottom by workers during new excavation. The flash point of a combustible liquid is best described as: - Answer️The temperature at which the liquid produces combustible vapor. From an administrative perspective, what describes acceptable resources for development of safe operating procedures? - Answer️The intent of related performance standards, industry standards and manufacturer's operating standards. According to CAN/ULC S801-14, what is the criteria for a qualified person? - Answer️Recognized degree, extensive knowledge, experience. What best describes upstream indicators used to determine the effectiveness of a safety program or element of the program? - Answer️Leading A gasloine safety can is designed to: - Answer️Contain flammable liquid and seal the filler neck when not in use, creating a sealed container that cannot expel vapors in the presence of a flame. In developing an effective incident prevention program, what would have the most effect? - Answer️Effective job site task hazard analysis. How should leaders inspire people? - Answer️Through positive personal examples, good management practices and a good sense of moral responsibility. Joint safety and health committees ___ . - Answer️Promote a broader base of expertise and experience. the definition of a buffer space in a temporary traffic control zone would include: - Answer️The lateral and longitudinal area that serves as recovery space fro errant vehicles. The language, 'Tags shall prohibit operation of the disconnecting means and shall indicate that employees are at work', is associated with which standards section? - Answer️Lockout tag out. One purpose for including workforce safety review in the design and engineering process is: - Answer️Incorporating safety and training for affected workplace users. To ensure an extension ladder leaned against a wall is at the right angle, the ratio of height at the top of the ladder to the distance the feet are from the eall at the bottom of the ladder should be: - Answer️4:1 Atmospheric hazards include: - Answer️Oxygen deficiency/enriched, toxic gases and flammable atmospheres. Hazards are typically ranked according to likelihood of occurrence. The likelihood scale includes all of the following, EXCEPT: - Answer️Never. Hazards are typically ranked according to likelihood of occurrence. The likelihood scale includes all of the following: - Answer️Frequent, probable and remote. Monitoring is used to assess the effectiveness of controls on identified hazards. Common monitoring modes include: - Answer️Inspections and medical monitoring. Within the system, a latent organizational error is usually discovered: - Answer️During post-incident investigation. During storm restoration workers are on a foreign system. Utility systems are destroyed, system maps are unavailable. As they approach the work, the equipment they must replace they have never worked with before and the construction is unfamiliar. Still, they successfully and safely restore the system without error. Most likely they solved their problems in a: - Answer️Rule-based performance mode. A maintenance crew is working to replace a vibration transmitter on a generator frame. They ran into problems, but used trial and error to find out what was wrong, leading to a plan for repair. This is an example of: - Answer️Knowledge-based performance mode. Against policy, a manager lets workers go without hard hats because he personally decides there are more important things to worry about. This is an example of: - Answer️A latent organizational weakness. Pre-task hazard analysis, crew safety meetings and job site inspections work best toward a safe workplace when conducted by: - Answer️Crew leaders assisted by crew members. A good way for managers to ensure workers understand policy and follow rules is to: - Answer️Visit job sites, take a real interest in employees and talk to workers. If a supervisor observes a worker not wearing their safety glasses when they are required and says nothing to the worker, the supervisor: - Answer️Has reinforced the bad habit that safety glasses are optional. What best describes common elements of trench safety? - Answer️Benching, shoring and sloping. Equipment operators must comply with specifications and limitations in regard to the operation of cranes and derricks. Where are specifications and limitations found? - Answer️Manufacturer operator's manual. The employer shall ensure that the employee in charge conducts a job briefing with the employees involved before they start each job. The briefing will cover at least the following subjects: - Answer️Hazards associated with the job, work procedures involved, special precautions, energy source controls and PPE requirements. What is NOT a requirement for safety glasses by CSA's Z94.3.1 PPE standard? - Answer️Safety glasses must be marked with the legend CSA Z94.3.1. What are the requirements for safety glasses by CSA's Z94.3.1 PPE standard? - Answer️1. Side shields may be fixed, clip-on or slip-on. 2. Safety glasses must be marked with the manufacturer's name or logo. 3. Glasses be proper tint for the work environment. The reason for the standardizing stop sign dimensions, shape and colour is best described by: - Answer️Shape, size and colour is instantly recognizable, causing a programmed safety response. Class A fires include which class of burning materials? - Answer️Paper, wood and cloth. The acronym GFCI stands for: - Answer️Ground Fault Circuit Interrupter Under most provincial Workers Compensation Acts, the prime contractor or owner has: - Answer️The leverage to assure compliance with safety standards by subcontractors. T/F: Only a qualified observer may use hand signals to halt the movement of a crane in an emergency. - Answer️False Static created while fueling a commercial motor vehicle could be controlled by: - Answer️Keeping the fuel nozzle in contact with the fuel spout of the vehicle. When describing core leadership qualities, commanding respect and exhibiting respect for others are important qualities. Other important core qualities include: - Answer️Capable of clear communication, trains effectively, gives feedback and follows up. A truck driver maneuvers a corner and accelerates to posted speed, slows to accommodate traffic ahead, then accelerates again, keeping flow with traffic. Suddenly he hears a siren and sees an ambulance approaching from behind; he touches the brake, looks for a clear space, signals and moves right to allow the emergency vehicle to pass. In correct order, which two decision-making modes has the driver demonstrated? - Answer️Skill-based and rule-based Hazard controls are measured, audited and evaluated: - Answer️To ensure that the control methods designed for the hazard are appropriate and effective. T/F: Bonding can be defined as the physical act of electrically connecting two or more pieces of equipment together to ensure they are as close as possible to the same electrical potential. - Answer️True In rural areas, the neutral is grounded much less frequently. As a result, the neutral may often be at potential ____ than that of ground. - Answer️Higher T/F: An isolated (de-energized) line can accidentally be re-energized from equipment failure, human error, induction and a lightning strike. - Answer️True T/F: Wood poles have varying levels of resistance depending on such factors as age, moisture, and wood preservatives. - Answer️True T/F: Grounding jumpers should be sized according to the maximum available fault current at the point of grounding. - Answer️True T/F: Except for a running ground, all grounds shall be installed using a live line tool (hot stick). - Answer️True T/F: You should always jumper the side phases to the center phase. You should never jumper an outside phase to the other outside phase. - Answer️True If you are a ground rod, install it as ___ ___ the work area as possible, preferably away from the roadside. - Answer️Close to. In the event of a fault connection, large electrical ground gradients can be generated around the ground rod. These in turn can result in dangerous _____ potentials. - Answer️Step T/F: In a substation, all non-energized substation components are electrically bonded to a mat beneath the substation. - Answer️True T/F: In a proper conductor stringing setup, the conductor, the equipment, and the ground gradient mat are electrically connected so they can be as close as possible to the same potential - Answer️True T/F: When stringing conductors, there must be a running ground installed on each conductor and sub-conductor. - Answer️True T/F: Before installing ground clamps on a conductor or buss, the conductor or buss and the clamp must be cleaned using a wire brush. - Answer️True When installing a grounding cluster bracket, the cluster bracket should be installed as ___________ the line workers feet as possible. - Answer️Close to When installing grounds, the ground end connection must be installed __________ using a live line tool. - Answer️First When removing grounds, the ground end connection must be removed _________ using a live line tool. - Answer️Last T/F: Grounds, when installed should be as short and straight as possible. Ground cables should never be coiled because of the act of coiling the ground can lower the cables ability to conduct current. - Answer️True T/F: Grounding equipment found to be defective shall e removed from service. - Answer️True T/F: De-energizing and grounding a circuit or apparatus guarantees that there is no potential on the device. - Answer️False T/F: As little as 1/10 of an ampere can cause heart fibrillation. - Answer️True T/F: "Fuzzing" the line is a reliable way of determining if a circuit is energized. - Answer️False T/F: Workers on the ground may be exposed to hazardous differences in potential. - Answer️True As per CAN/ULC S801, on an electrical distribution overhead utility line circuit, verification of voltage absence can be achieved by: - Answer️Using an approved voltage detector. Isolation and tagging (no locks) is acceptable on an overhead distribution circuit under some of the following conditions, EXCEPT for: - Answer️The isolation can be operated from the ground directly at the base of a structure. Isolation and tagging (no locks) is acceptable for an overhead distribution circuit under some of the following conditions: - Answer️1. The isolation point is a physical and visual like a line cut or riser removed. 2. The isolation point can only be operated by the operating authority or qualified worker. 3. The isolation point is protected from unauthorized access such as vertical height spacing. Consider that a circuit has been isolated, tagged and grounded. workers returning the next day must: - Answer️Visually check grounds to verify they are in good order, secure and test for voltage. For lockout purposes, energy isolating devices shall be labelled or marked using a standardized nomenclature and format to indicate their function. Identification shall include: - Answer️The equipment type, energy type, and magnitude. Utilities often use a permitting system due to special circumstances of which conventional lockout is impracticable. The following is NOT a justified approach to this process: - Answer️The isolation points are only simple single step actions. A high voltage utility or electrical company is authorized to use Complex Lockout (tag permitting) under what regulatory condition: - Answer️A variance application has been approved by the provincial authority. Utilities often use a permitting system due to special circumstances of which conventional lockout is impracticable. The following are justified approaches to this process: - Answer️1. The isolation points are located in remote areas with difficult or restricted access. 2. The length of time to perform the lockout is impracticable. 3. Excessive numbers of persons required to lockout. Work on a distribution line must consider the following items when performing isolation and de-energizing of the circuit.: - Answer️1. Whether there are multiple sources of energy (loop feed) on the circuit. 2. Is the line isolating device capable of interrupting load. 3. Is the line to be subject to inductive or capacitive charge. According to the CAN/ULC S801, what is the LEAST DESIRABLE type of fall protection: - Answer️Fall Arrest System (FAS) Within Z259.14 standards fall restriction equipment (FRE) may only be leather in subcomponents or elements that are NOT exposed to: - Answer️A dynamic load. As per Z259 standards, energy absorbing lanyards shall be classified according to their ability to absorb the kinetic energy from a fall as follows: - Answer️Class E4 (4.0 kN) and Class E6 (6.0 kN) energy absorbing lanyards. Assuming that the fall protection system is correctly being used, in what scenario might the worker still contact the ground if they fell: - Answer️Working 16 feet up in a bucket truck on distribution secondary services using a six foot shock absorbing lanyard, connected to the approved bucket anchor. What is NOT defined as a requirement of temporary vertical life lines as per Z259 standards: - Answer️100% polypropylene fibers provide the greatest breaking strength. Requirements of temporary vertical life lines, as per Z259 standards: - Answer️1. Shall be made from synthetic fibers with breaking strength of 27 kN or greater. 2. They shall be free of splices and knots, except at the terminations. 3. They shall be installed to protect against abrasion and sharp edges. Working on an energized lattice tower requires emergency response consistent with the associated hazards. What is NOT required as part of the emergency planning: - Answer️Daily practice of tower rescue method. Working on an energized lattice tower requires emergency response consistent with the associated hazards, including: - Answer️1. A means to contact the operating authority to de-energize the circuit. 2. Rescue equipment readily available to quickly and safely lower the worker. 3. Regular rescue practices on tower rescue at an appropriate frequency. Z259.14 wooden pole choker devices that are designed and tested to restrict a workers fall distance under dry, wet, and icy conditions are classified as: - Answer️Type AB device. The voltage limits and mechanical strength of a live line tool is best specified by: - Answer️The manufacturers requirements. Live line tools can be modified to meet the needs of the work. What is NOT an acceptable strategy for tool modification: - Answer️A utility worker has evaluated the tool modification and approved the change. Live line tools can be modified to meet the needs of the work. Acceptable strategies for tool modification include: - Answer️1. Changes to the tool do not violate other applicable standards. 2. The tool has been inspected and tested by a professional engineer. 3. The tool modification was approved by an engineer using applicable standards. Insulating hot rope (live line rope) is tested in accordance to ASTM F1701. The purpose of this test is to: - Answer️Determine the current leakage under dry and wet rope conditions. Live line rigid cover in compliance with CAN/ULC-61229 includes the following pieces or protective insulating equipment EXCEPT for: - Answer️Insulating line hose. Live line rigid cover in compliance with CAN/ULC-61229 includes the following pieces or protective insulating equipment, including: - Answer️1. Conductor cover (air guard). 2. Pole guard. 3. Switch and insulator shields. This statement is true, regarding the application of cover-up on energized high voltage lines: - Answer️If left overnight, a visual inspection must be performed at minimum prior to use. What is NOT a fundamental principle of live line work tools: - Answer️Valid lab test dates provide sufficient verification of tool dielectric properties. Live line work tool fundamentals include: - Answer️1. Insulating quality of protective tools shall be validated through checks, inspections and tests. 2. The voltage class of tools shall correspond to the voltage being worked on. 3. Prior to severing the conductor, current is verified as flowing through the rated jumper. The dielectric properties of live line tools and equipment are affected by the following factors: - Answer️Air density, humidity and corona. CSAZ1006 requires the Entry Supervisor to execute certain duties in the field prior to entering a confined space, NOT INCLUDING: - Answer️Conducting a comprehensive risk assessment to understand the associated risks of the space. CSAZ1006 requires the Entry Supervisor to execute certain duties in the field prior to entering a confined space, including: - Answer️1. Ensuring those entering the space are trained and competent. 2. Verifying that rescue procedures are in place and communication is established. 3. Ensure that acceptable conditions are maintained for the duration of the entry. Energized electrical cables inside underground chambers can be disturbed and produce a hazardous environment. What precautions should be taken? - Answer️1. Ensure that cables are held in place prior to undoing or cutting fasteners. 2. Don't climb onto cables, junctions, connections, splices or supports. 3. Verify equipment condition if required to move cables, junctions or splices. The roll of the attendant of a confined space electrical vault shall NOT do the following: - Answer️Enter the space to provide assistance when required. The roll of the attendant of a confined space electrical vault shall do the following: - Answer️1. Maintain effective communication with workers in the space. 2. Keep an eye on potential hazards developing in and around the space. 3. Control unauthorized access into the space. It is permissible to use an external retrieval rescue system under what following condition: - Answer️There are no significant obstructions to the path of rescue. The frequency requirements for calibration of direct-read atmosphere testing equipment is: - Answer️As per the manufacturers recommendations. What must be conducted each time prior to entry into an energized electrical space: - Answer️A risk assessment shall be performed to determine the energy source hazards and controls. The content of the confined space permit (where required) DOES NOT need to contain: - Answer️Managers approval for entry into the space. The content of the confined space permit (where required) must contain the following: - Answer️1. The date and location entry. 2. Scope of work to be performed inside the space. 3. Record worker entry and exit. A minimum of ___ cal/cm2 is to be worn by electrical workers. - Answer️8 cal/cm2 A worker wearing an FR shirt with a rating of 12 cal/cm2 plus an undershirt that is made of non-melting fabrics can have a combined total cal/cm2 of ___. - Answer️12 cal/cm2 Arc FR clothing shall be cleaned according to what? - Answer️Manufacturers recommendations. Arc flash rated clothing shall be worn when: - Answer️There is a hazard of arc flash. ATPV stands for: - Answer️Arc Thermal Protective Value When performing arc flash assessments, why should consideration be given to low fault energy: - Answer️Low fault currents can result in very long clearing times. In a discussion about differences in potential; a second point of contact might be best described as: - Answer️Ina pad-mount transformer, the phase conductor on a URD cable grounded 700ft away and the ground rod in the pad mount transformer; and/or co-worker in a 2 man bucket. The specific operational description of a distribution underground 600 amp elbow that includes the designation 'dead-break' means: - Answer️The elbow can only be connected or disconnected when the circuit is 'dead'. The number of lifetime operations allowed for a circuit interruption device is generally contingent on: - Answer️The number of operations at a rated current limit, as specified by the manufacturer. An arc flash hazard is determined by (3) factors: - Answer️Available current, distance of the employee to the arc, and duration of the arc. The correct definition for 'insulated': - Answer️Separated from other conducting surfaces by a dielectric (including air) offering high resistance to the passage of electrical current. In regards to Minimum Approach Distances (MAD), what conditions need to be taken into consideration in addition to voltage levels? - Answer️Altitude correction factor.