Session Exam Questions PM 07 PDF

**1-10: General Concepts** 1. **What does OSH stand for?** a\) Occupational Safety and Health b) Occupational Studies and Health c) Organization of Safety and Health d) Occupational Standard of Health\ **Answer**: a) Occupational Safety and Health 2. a\) Protecting workers' rights b) Preventi...

**1-10: General Concepts** 1. **What does OSH stand for?** a\) Occupational Safety and Health b) Occupational Studies and Health c) Organization of Safety and Health d) Occupational Standard of Health\ **Answer**: a) Occupational Safety and Health 2. a\) Protecting workers' rights b) Preventing work-related injuries and illnesses c) Increasing productivity d) Improving working conditions\ **Answer**: b) Preventing work-related injuries and illnesses 3. a\) Prevention of accidents b) Promotion of physical health c) Encouragement of risk-taking d) Protection of workers from hazards\ **Answer**: c) Encouragement of risk-taking 4. **Which organization is responsible for OSH standards in the United States?** a\) National Institute for Occupational Safety and Health (NIOSH) b) Occupational Safety and Health Administration (OSHA) c) American National Standards Institute (ANSI) d) Environmental Protection Agency (EPA)\ **Answer**: b) Occupational Safety and Health Administration (OSHA) 5. **What is a \"hazard\" in terms of OSH?** a\) A dangerous event b) Any source of potential damage or harm c) An employee who causes harm d) A safe working condition\ **Answer**: b) Any source of potential damage or harm 6. **Which of the following is an example of a physical hazard?** a\) Noise b) Stress c) Chemicals d) Poor lighting\ **Answer**: a) Noise 7. **Which OSH document helps in identifying hazards and assessing risk?** a\) Risk Assessment b) Safety Data Sheet (SDS) c) Hazardous Materials Inventory d) Job Safety Analysis (JSA)\ **Answer**: d) Job Safety Analysis (JSA) 8. **What is the primary role of a safety officer in an organization?** a\) Enforce disciplinary measures b) Monitor workers' performance c) Ensure a safe working environment d) Handle workers\' grievances\ **Answer**: c) Ensure a safe working environment 9. **Which type of personal protective equipment (PPE) is used to protect workers from falling objects?** a\) Safety goggles b) Safety shoes c) Hard hats d) Hearing protection\ **Answer**: c) Hard hats 10. **Which of the following is true about safety training programs?** a\) They are optional for most workers b) They should only be conducted when an accident occurs c) They must be done regularly and updated for all workers d) Only supervisors need to attend them\ **Answer**: c) They must be done regularly and updated for all workers **11-20: Health and Hygiene** 11. **What is the primary function of industrial hygiene?** a\) To assess physical work environments b) To monitor and control exposure to harmful agents c) To enforce health-related laws d) To conduct health surveys among workers\ **Answer**: b) To monitor and control exposure to harmful agents 12. **Which of the following is considered an ergonomic hazard?** a\) Poor air quality b) Repetitive motion injuries c) Exposure to chemicals d) Poor lighting\ **Answer**: b) Repetitive motion injuries 13. **Which of the following is a biological hazard?** a\) Dust particles b) Bacteria and viruses c) Noise pollution d) High temperatures\ **Answer**: b) Bacteria and viruses 14. **The "hierarchy of controls" begins with which of the following?** a\) Administrative controls b) Personal protective equipment c) Elimination of hazards d) Substitution of hazards\ **Answer**: c) Elimination of hazards 15. **Which of the following diseases is often caused by exposure to asbestos?** a\) Asthma b) Mesothelioma c) Silicosis d) Tuberculosis\ **Answer**: b) Mesothelioma 16. **Which is an example of an environmental hazard?** a\) Loud noise b) Excessive lighting c) Workplace stress d) Poor air quality\ **Answer**: d) Poor air quality 17. **Which chemical is known for causing respiratory problems and is often found in industrial settings?** a\) Lead b) Asbestos c) Benzene d) Carbon monoxide\ **Answer**: b) Asbestos 18. **Which of the following is a common method for controlling exposure to hazardous chemicals in the workplace?** a) Personal protective equipment b) Ventilation systems c) Administrative procedures d) All of the above\ **Answer**: d) All of the above 19. **What is the purpose of a Safety Data Sheet (SDS)?** a\) To provide instructions on emergency procedures b) To describe the safe handling and disposal of chemicals c) To outline safety training requirements d) To list all workplace hazards\ **Answer**: b) To describe the safe handling and disposal of chemicals 20. **Which of the following is NOT a health hazard in the workplace?** a\) Chemical exposure b) Temperature extremes c) Physical inactivity d) Safe lifting techniques\ **Answer**: d) Safe lifting techniques **21-30: Risk Assessment and Management** 21. **Which method is used to assess the severity of risks in OSH?** a\) Incident reporting b) Risk matrix c) Worker surveys d) Random checks\ **Answer**: b) Risk matrix 22. **What does a risk assessment help identify?** a\) Financial liabilities b) Workplace hazards c) Employee benefits d) Employee turnover rates\ **Answer**: b) Workplace hazards 23. **Which of the following is part of the risk management process?** a\) Identifying hazards b) Implementing controls c) Reviewing effectiveness d) All of the above\ **Answer**: d) All of the above 24. **Which tool is commonly used to assess the likelihood of a risk occurring?** a\) SWOT analysis b) Risk assessment matrix c) Fishbone diagram d) Control chart\ **Answer**: b) Risk assessment matrix 25. **Which of the following is an example of an administrative control to manage risk?** a\) Changing work procedures b) Providing personal protective equipment c) Installing ventilation systems d) Substituting hazardous substances\ **Answer**: a) Changing work procedures 26. **What is the primary focus of a job hazard analysis?** a\) To create a new safety training program b) To identify potential hazards in specific job tasks c) To assess the company's overall safety culture d) To create a work schedule\ **Answer**: b) To identify potential hazards in specific job tasks 27. **What is an example of a hazard control measure?** a\) Machine maintenance b) Offering health insurance c) Employee counseling d) Hiring more staff\ **Answer**: a) Machine maintenance 28. **What is the first step in conducting a risk assessment?** a\) Implementing control measures b) Reviewing past accidents c) Identifying hazards d) Evaluating risk levels\ **Answer**: c) Identifying hazards 29. **Which of the following is true about the risk matrix?** a\) It is used to evaluate the cost of safety measures b) It categorizes risks based on severity and likelihood c) It only applies to financial risks d) It is only used in high-risk industries\ **Answer**: b) It categorizes risks based on severity and likelihood 30. **What should a risk assessment team include?** a\) Only safety officers b) Workers and supervisors familiar with the tasks c) Only management staff d) Consultants and contractors\ **Answer**: b) Workers and supervisors familiar with the tasks **31-40: Workplace Safety** 31. **Which of the following is a common safety concern in construction sites?** a\) Fire hazards b) Heavy machinery accidents c) Falling objects d) All of the above\ **Answer**: d) All of the above 32. **What does the acronym \"PPE\" stand for?** a\) Personal Performance Evaluation b) Personal Protection Equipment c) Public Protective Environment d) Preventative Personal Equipment\ **Answer**: b) Personal Protection Equipment 33. **Which of the following is considered a mechanical hazard?** a\) Noise b) Vibrations c) Machinery with moving parts d) Exposure to toxic fumes\ **Answer**: c) Machinery with moving parts 34. **What is the purpose of a fire extinguisher in the workplace?** a\) To prevent fire hazards b) To fight small fires before they spread c) To notify emergency services d) To store hazardous materials safely\ **Answer**: b) To fight small fires before they spread 35. **Which of the following can lead to slips, trips, and falls in the workplace?** a\) Poor housekeeping b) Wet floors c) Uneven surfaces d) All of the above\ **Answer**: d) All of the above 36. **When is it important to use lockout/tagout procedures?** a\) When operating heavy machinery b) During maintenance of hazardous machinery c) During training of new employees d) When conducting inspections\ **Answer**: b) During maintenance of hazardous machinery 37. **Which of the following is a safety concern related to electrical hazards?** a\) Burns and electrocution b) Eye strain c) Muscular injuries d) Respiratory issues\ **Answer**: a) Burns and electrocution 38. **In which situation should workers be trained in the use of personal protective equipment (PPE)?** a\) Before beginning any task involving a hazard b) Only after an injury has occurred c) During company orientation d) Every six months\ **Answer**: a) Before beginning any task involving a hazard 39. **Which of the following is a control measure for reducing noise hazards?** a\) Noise barriers b) Earplugs c) Quiet machinery d) All of the above\ **Answer**: d) All of the above 40. **What type of hazard does a forklift represent?** a\) Physical hazard b) Biological hazard c) Chemical hazard d) Ergonomic hazard\ **Answer**: a) Physical hazard **41-50: Emergency Preparedness** 41. **What should be included in an emergency evacuation plan?** a\) Evacuation routes b) Safe assembly points c) Emergency contact numbers d) All of the above\ **Answer**: d) All of the above 42. **Who is responsible for conducting emergency drills?** a\) Safety managers b) Employees c) Fire departments d) Government agencies\ **Answer**: a) Safety managers 43. **What is the first thing you should do during a workplace fire emergency?** a\) Call 911 b) Use a fire extinguisher c) Evacuate the building d) Try to extinguish the fire yourself\ **Answer**: c) Evacuate the building 44. **What is the role of first-aid kits in workplace emergencies?** a\) To provide workers with medication b) To treat injuries before professional help arrives c) To prevent all injuries d) To monitor workers\' health regularly\ **Answer**: b) To treat injuries before professional help arrives 45. **Which of the following is necessary for handling hazardous spills in the workplace?** a\) Immediate evacuation b) Emergency spill kits c) Regular safety audits d) Informing the local authorities\ **Answer**: b) Emergency spill kits 46. **Which of the following is the correct action during a chemical spill?** a\) Allow the chemical to evaporate b) Evacuate the area and contact emergency responders c) Spread sand over the spill d) Ignore the spill and continue working\ **Answer**: b) Evacuate the area and contact emergency responders 47. **Which of the following is an essential part of a fire prevention strategy?** a\) Installing fire alarms b) Regularly checking fire extinguishers c) Maintaining clear emergency exits d\) All of the above\ **Answer**: d) All of the above 48. **Who should be trained in emergency first aid at a workplace?** a\) Only managers b) Only safety officers c) A select group of employees d) All employees\ **Answer**: d) All employees 49. **What is a critical factor in managing a workplace emergency?** a\) Following standard operating procedures b) Ignoring minor injuries c) Rescheduling meetings d) Delegating responsibilities\ **Answer**: a) Following standard operating procedures 50. **In the event of an earthquake at the workplace, what should employees do?** a\) Run to the exit immediately b) Drop, cover, and hold on c) Wait for instructions from the supervisor d) Gather personal belongings\ **Answer**: b) Drop, cover, and hold on **51-60: Workplace Culture and Legal Issues** 51. **Which law regulates workplace safety in the United States?** a\) Civil Rights Act b) Occupational Safety and Health Act (OSHA) c) Family and Medical Leave Act d) Workers Compensation Act\ **Answer**: b) Occupational Safety and Health Act (OSHA) 52. **What is the purpose of a workplace safety committee?** a\) To develop employee benefits b) To monitor safety and address hazards c) To enforce rules d) To collect fines\ **Answer**: b) To monitor safety and address hazards 53. **Which of the following is an employer's responsibility under OSH legislation?** a\) Provide PPE to employees b) Ignore safety violations c) Hire only unionized workers d) Allow employees to work without breaks\ **Answer**: a) Provide PPE to employees 54. **Under OSHA, what is the maximum fine for a serious violation?** a\) \$5,000 b) \$10,000 c) \$15,000 d) \$15,000 per day\ **Answer**: b) \$10,000 55. **What is the purpose of workers\' compensation insurance?** a\) To pay for medical expenses due to workplace injuries b) To pay bonuses to employees c) To fund safety training programs d) To compensate for employee vacations\ **Answer**: a) To pay for medical expenses due to workplace injuries 56. **Which of the following is a common violation of OSH standards?** a\) Failure to provide adequate safety equipment b) Providing employees with extra breaks c) Offering health benefits d) Reporting injuries to authorities\ **Answer**: a) Failure to provide adequate safety equipment 57. **What is an example of a retaliation against workers reporting safety concerns?** a\) Giving a promotion b) Reducing work hours c) Conducting a training program d) Providing more PPE\ **Answer**: b) Reducing work hours 58. **What should an employee do if they believe there is an unsafe work condition?** a\) Ignore the issue b) Report it to their supervisor or safety officer c) Work around the hazard d) Try to fix the hazard themselves\ **Answer**: b) Report it to their supervisor or safety officer 59. **Which of the following is a key feature of a strong safety culture?** a\) Management commitment to safety b) Workers\' reluctance to report hazards c) A lack of safety policies d) High turnover rates\ **Answer**: a) Management commitment to safety 60. **Which is a primary aim of the OSH Act of 1970?** a\) Improve employee wages b) Ensure safe and healthful working conditions c) Eliminate taxes for employers d) Create union jobs\ **Answer**: b) Ensure safe and healthful working conditions **61-70: Workplace Safety Best Practices** 61. **What should workers do if they notice an unsafe condition at work?** a\) Report it to management b) Wait until it becomes dangerous c) Ignore it and continue working d) Attempt to fix it without proper training\ **Answer**: a) Report it to management 62. **Which of the following best promotes a culture of safety?** a\) Workers reporting hazards b) Ignoring safety issues c) Reprimanding employees for safety violations d\) Focusing only on productivity\ **Answer**: a) Workers reporting hazards 63. **What is the first step in addressing workplace safety issues?** a\) Fire the responsible workers b) Conduct a hazard assessment c) Increase employee wages d\) Change safety policies\ **Answer**: b) Conduct a hazard assessment 64. **Which of the following activities is a safety best practice in manufacturing?** a\) Keeping walkways clear b) Allowing workers to work without breaks c) Ignoring equipment malfunctions d) Reducing safety inspections\ **Answer**: a) Keeping walkways clear 65. **Which of the following is a best practice for ensuring mental health in the workplace?** a\) Providing stress-relief resources b) Encouraging long working hours c) Ignoring mental health issues d) Punishing employees for taking sick leave\ **Answer**: a) Providing stress-relief resources 66. **What is the primary benefit of regular workplace safety audits?** a\) To improve company profits b) To identify potential hazards and prevent accidents c) To assess employee performance d) To comply with tax regulations\ **Answer**: b) To identify potential hazards and prevent accidents 67. **Which of the following is a best practice for preventing repetitive strain injuries?** a\) Proper workstation ergonomics b) Long hours of continuous work c) Lack of regular breaks d) Ignoring body posture\ **Answer**: a) Proper workstation ergonomics 68. **Which of the following is part of a safe lifting technique?** a\) Using your back to lift heavy objects b) Lifting with your legs, not your back c) Lifting objects quickly d\) Lifting with one hand only\ **Answer**: b) Lifting with your legs, not your back 69. **What should be included in a workplace safety policy?** a\) Reporting procedures for accidents and near misses b) A reward system for ignoring safety regulations c) Details of the employee's work tasks d) A strategy to cut safety costs\ **Answer**: a) Reporting procedures for accidents and near misses 70. **Why is employee involvement crucial in safety programs?** a\) To ensure compliance with laws b) To improve the effectiveness of safety measures c) To reduce production costs d) To ensure maximum profits\ **Answer**: b) To improve the effectiveness of safety measures **71-80: Specific Safety Hazards** 71. **What is the primary danger of working with toxic chemicals?** a\) Burns from exposure b) Skin infections c) Long-term health issues such as cancer d) Poor work performance\ **Answer**: c) Long-term health issues such as cancer 72. **Which of the following workplace conditions may cause heat stress?** a\) High temperatures b) Humidity c) Heavy physical exertion d) All of the above\ **Answer**: d) All of the above 73. **Which of the following is a hazard related to confined spaces?** a\) Oxygen deficiency b) Ventilation issues c) Toxic gases d) All of the above\ **Answer**: d) All of the above 74. **What type of safety hazard does welding pose?** a\) Chemical exposure b) Fire and explosion c) Burns from hot metal d) All of the above\ **Answer**: d) All of the above 75. **Which is an example of a psychological hazard at work?** a\) Noise b) Work overload c) Slippery floors d) Poor lighting\ **Answer**: b) Work overload 76. **What is the primary concern when working with powered tools?** a\) Loud noise b) Vibration exposure c) Mechanical injuries d) High temperatures\ **Answer**: c) Mechanical injuries 77. **What is one way to protect workers from hazardous noise?** a\) Limiting exposure time b) Using hearing protection c) Installing noise barriers d) All of the above\ **Answer**: d) All of the above 78. **What should workers do if exposed to hazardous substances?** a\) Wait for symptoms to appear b) Report to their supervisor immediately c) Continue working d) Ignore the exposure\ **Answer**: b) Report to their supervisor immediately 79. **What is a common chemical hazard in laboratories?** a\) Spilled water b) Flammable solvents c) Noise pollution d) Lack of ventilation\ **Answer**: b) Flammable solvents 80. **Which of the following is an important factor in controlling exposure to radiation in the workplace?** a\) Wearing a helmet b) Reducing exposure time c) Regular breaks d) Keeping a safe distance from sources of radiation\ **Answer**: b) Reducing exposure time **81-90: Workplace Inspections** 81. **How often should workplace safety inspections be conducted?** a\) Once every year b) After an accident occurs c) Regularly and as needed d) Only after a complaint is filed\ **Answer**: c) Regularly and as needed 82. **Which of the following is a key factor during a workplace safety inspection?** a\) Looking for visible hazards b) Asking employees about their complaints c) Reviewing past safety reports d) All of the above\ **Answer**: d) All of the above 83. **What is the purpose of a safety audit?** a\) To check employee performance b) To identify hazards and improve safety c) To ensure the company meets financial targets d) To evaluate company marketing strategies\ **Answer**: b) To identify hazards and improve safety 84. **What should an inspector do if they identify a serious hazard?** a\) Ignore the hazard and continue the inspection b) Report it immediately and recommend corrective actions c) Tell workers to fix it themselves d) Wait until the next inspection to address it\ **Answer**: b) Report it immediately and recommend corrective actions 85. **Which of the following should be inspected regularly in a manufacturing plant?** a\) Fire exits b) Equipment and machinery c) Electrical systems d) All of the above\ **Answer**: d) All of the above 86. **How can safety inspections help reduce accidents?** a\) By identifying hazards before they cause harm b) By ensuring employees are punished for mistakes c) By increasing production rates d) By ignoring minor safety issues\ **Answer**: a) By identifying hazards before they cause harm 87. **Who should be involved in a safety inspection process?** a\) Only safety officers b) Only senior management c) Supervisors and workers d) Only external auditors\ **Answer**: c) Supervisors and workers 88. **Which of the following is a benefit of having regular safety inspections?** a\) Identifying opportunities to increase profits b) Reducing the likelihood of workplace accidents c) Increasing work hours d) Reducing employee salaries\ **Answer**: b) Reducing the likelihood of workplace accidents 89. **What should be the first step in any safety inspection?** a\) Looking for hidden issues b) Reviewing company policies c) Identifying potential hazards d) Counting the number of workers\ **Answer**: c) Identifying potential hazards 90. **What is the main purpose of reporting safety violations?** a\) To punish workers b) To improve safety standards and prevent accidents c) To collect fines d) To get approval for new equipment\ **Answer**: b) To improve safety standards and prevent accidents **91-100: Best Practices and Emerging Trends** 91. **Which of the following is an emerging trend in workplace safety?** a\) Increased use of technology for safety monitoring b) Reducing the number of safety regulations c) Limiting safety training d) Ignoring employee feedback\ **Answer**: a) Increased use of technology for safety monitoring 92. **Which of the following is a key aspect of a safety management system?** a\) Risk identification and assessment b) Ignoring minor hazards c) Reducing employee involvement in safety decisions d) Increasing production targets\ **Answer**: a) Risk identification and assessment 93. **Which of the following is essential for continuous improvement in workplace safety?** a\) Routine safety audits and inspections b) Ignoring workers\' safety concerns c) Reducing safety budgets d) Eliminating all safety training programs\ **Answer**: a) Routine safety audits and inspections 94. **What is a best practice for reporting safety incidents?** a\) Reporting incidents as soon as possible b) Waiting for others to report c) Ignoring minor accidents d\) Not informing supervisors\ **Answer**: a) Reporting incidents as soon as possible 95. **What role does technology play in modern workplace safety?** a\) It has no role in workplace safety b) It helps monitor safety compliance and improve hazard detection c\) It replaces all safety training programs d) It reduces the need for regular inspections\ **Answer**: b) It helps monitor safety compliance and improve hazard detection 96. **Which of the following is a key benefit of employee safety training?** a\) Increased productivity b) Reduced workplace injuries and illnesses c) Higher wages for employees d\) Decreased safety compliance\ **Answer**: b) Reduced workplace injuries and illnesses 97. **What is an example of an emerging workplace safety technology?** a\) Smart sensors to detect environmental hazards b) Paper-based incident reports c) Regular manual inspections d) None of the above\ **Answer**: a) Smart sensors to detect environmental hazards 98. **Why is employee wellness important in OSH?** a\) It improves overall job satisfaction and performance b) It is only relevant in medical settings c) It reduces the need for safety programs d) It makes employees work longer hours\ **Answer**: a) It improves overall job satisfaction and performance 99. **What is a major challenge in improving workplace safety?** a\) Lack of resources and commitment from leadership b) Excessive safety regulations c) Overtraining employees d) None of the above\ **Answer**: a) Lack of resources and commitment from leadership **100. What is the primary purpose of a workplace safety culture?** a\) To minimize the number of safety regulations b) To enhance employee engagement and well-being\ c) To ignore employee complaints d) To avoid regulatory compliance\ **Answer**: b) To enhance employee engagement and well-being Here are 50 quiz questions about electrical schemes, designed for college students: **100-110: Basic Concepts** 100. **What is an electrical circuit?** a\) A path for current to flow b) A type of wire c) A power supply d) A tool used for measuring resistance **Answer**: a) A path for current to flow **101. Which of the following symbols represents a resistor in an electrical schematic?** a\) A circle with an \"R\" b) A zigzag line c) A rectangle d) A triangle **Answer**: b) A zigzag line **102. What does a capacitor do in a circuit?** a\) Stores energy b) Resists the flow of current c) Converts electrical energy into light d) Provides power to the circuit **Answer**: a) Stores energy **103. In a parallel circuit, the voltage across each component is:** a\) Different b) Zero c) The same d) Increased by a factor of two **Answer**: c) The same **104.What is the function of a fuse in an electrical schematic?** a\) To regulate the current flow b) To store energy c) To protect the circuit by breaking the connection when current is too high d) To reduce the voltage **Answer**: c) To protect the circuit by breaking the connection when current is too high **105. Which of the following is represented by a straight line in an electrical schematic?** a\) A conductor or wire b) A resistor c) A battery d) A switch **Answer**: a) A conductor or wire **106. What is the unit of electrical power?** a\) Volts b) Amps c) Ohms d) Watts **Answer**: d) Watts **107.How are resistors connected in a series circuit?** a\) End-to-end b) In parallel branches c) In a closed loop d) In any random order **Answer**: a) End-to-end **108.What is the purpose of a diode in a circuit?** a\) To allow current to flow in both directions b) To store electrical charge c) To convert AC to DC d\) To regulate the current flow **Answer**: c) To convert AC to DC **109.Which of the following is the most common use for a transistor in an electrical circuit?** a\) Amplification b) Power generation c) Voltage regulation d) Energy storage **Answer**: a) Amplification **110-120: Circuit Components** **110.Which of the following symbols represents a battery in an electrical schematic?** a\) A circle with two lines b) A long and short parallel line c) A zigzag line d) A rectangle with a line through it **Answer**: b) A long and short parallel line **111.How is an inductor symbolized in a schematic diagram?** a\) A circle with a line b) A series of loops or coils c) A zigzag line d) A triangle pointing down **Answer**: b) A series of loops or coils **112.What is the unit of capacitance?** a\) Farad b) Ohm c) Volt d) Ampere **Answer**: a) Farad **113.What type of component is represented by a triangle symbol with a line on one side in a circuit?** a\) A ground connection b) A diode c) A transistor d) A capacitor **Answer**: c) A transistor **114.In an electrical schematic, how is a switch typically represented?** a\) A circle b) A rectangle c) A break in a line with a small gap d) A triangle with an arrow **Answer**: c) A break in a line with a small gap **115. Which component in a schematic is used to control the current in a circuit?** a\) Resistor b) Capacitor c) Inductor d) Switch **Answer**: a) Resistor **116.Which of the following symbols indicates a ground connection in a circuit diagram?** a\) A triangle pointing down b) A vertical line with three horizontal lines at the bottom c) A straight line d\) A zigzag line **Answer**: b) A vertical line with three horizontal lines at the bottom **117. What does the symbol \"V\" represent in a circuit diagram?** a\) Voltage b) Variable resistor c) Voltage source d) Ventilation fan **Answer**: a) Voltage **118. Which of the following is true about a transformer in an electrical schematic?** a\) It is used to increase or decrease voltage b) It stores electrical energy c) It amplifies signals d) It regulates current **Answer**: a) It is used to increase or decrease voltage **119.What is the role of a relay in an electrical circuit?** a\) To store charge b) To switch electrical circuits on or off c) To amplify a signal d) To control voltage levels **Answer**: b) To switch electrical circuits on or off **120-130: Circuit Analysis** **120.In a series circuit, the total resistance is:** a\) The sum of all individual resistances b) The inverse of the sum of the inverses c) The same as the individual resistance d) Zero **Answer**: a) The sum of all individual resistances **121.In a parallel circuit, the total resistance is:** a\) The sum of all individual resistances b) The inverse of the sum of the inverses of the individual resistances c) The same as the individual resistance d) Zero **Answer**: b) The inverse of the sum of the inverses of the individual resistances **122. What is Kirchhoff\'s Voltage Law?** a\) The total voltage around any closed loop is zero b) The sum of currents entering a junction is equal to the sum of currents leaving c) The total current in a circuit is always constant d) The resistance is the same in all parts of a series circuit **Answer**: a) The total voltage around any closed loop is zero **123. What is the formula for calculating electrical power?** a\) P = I × R b) P = I × V c) P = V × R d) P = R × V **Answer**: b) P = I × V **124.Which of the following is an example of an active component in an electrical circuit?** a\) Resistor b) Inductor c) Diode d) Transistor **Answer**: d) Transistor **125.What is the equivalent resistance for three resistors of equal value in parallel?** a\) The value of one resistor b) The value of the sum of the resistors c) Half of the value of one resistor d\) One-third of the value of one resistor **Answer**: d) One-third of the value of one resistor **126. What is the main purpose of a ground in an electrical circuit?** a\) To provide a return path for current b) To store electrical energy c) To increase the voltage d) To amplify the current **Answer**: a) To provide a return path for current **127.What is the unit of electrical current?** a\) Volt b) Ampere c) Ohm d) Watt **Answer**: b) Ampere **128.What happens to the total current in a parallel circuit as more branches are added?** a\) It decreases b) It remains constant c) It increases d) It fluctuates randomly **Answer**: c) It increases **129.How can you calculate the total voltage in a series circuit?** a\) By adding the voltage across each component b) By dividing the voltage across each component c) By multiplying the voltage across each component d) By using Ohm\'s Law for the entire circuit **Answer**: a) By adding the voltage across each component **130-140: Advanced Concepts** **130.What is the function of a voltage regulator in a circuit?** a\) To maintain a constant voltage level b) To store electrical charge c) To amplify the signal d\) To convert DC to AC **Answer**: a) To maintain a constant voltage level **131. Which of the following is a typical application of an operational amplifier in a circuit?** a\) Amplifying signals b) Storing electrical energy c) Filtering high-frequency noise d) Generating voltage **Answer**: a) Amplifying signals **132.Which of the following components can be used to limit the current in a circuit?** a\) Capacitor b) Resistor c) Inductor d) Transistor **Answer**: b) Resistor **133. What is the primary purpose of a voltage divider in a circuit?** a\) To divide the current equally b) To create a specific output voltage from a higher input voltage c) To store charge d) To increase power efficiency **Answer**: b) To create a specific output voltage from a higher input voltage **134.What is the purpose of a Zener diode in an electrical circuit?** a\) To allow current to flow in both directions b) To regulate voltage in a circuit c) To store electrical energy d) To amplify signals **Answer**: b) To regulate voltage in a circuit **135.In a Wheatstone bridge circuit, the primary goal is to measure:** a\) Resistance b) Voltage c) Current d) Power **Answer**: a) Resistance **136.What type of filter is used to block high-frequency signals in an electrical circuit?** a\) Low-pass filter b) High-pass filter c) Band-pass filter d) Notch filter **Answer**: a) Low-pass filter **137.What is the primary function of a rectifier in a circuit?** a\) To store electrical energy b) To convert AC to DC c) To amplify signals d) To regulate voltage **Answer**: b) To convert AC to DC **138.What is an RLC circuit?** a\) A circuit consisting of a resistor, inductor, and capacitor b) A circuit consisting of only resistors c\) A circuit with a relay, light, and capacitor d) A circuit with resistors, lamps, and capacitors **Answer**: a) A circuit consisting of a resistor, inductor, and capacitor **139.What is the purpose of a surge protector in an electrical circuit?** a\) To increase voltage b) To store electrical charge c) To protect equipment from voltage spikes d\) To reduce the current in a circuit **Answer**: c) To protect equipment from voltage spikes **140-150: Practical Applications** **140.Which of the following is used to convert DC voltage to AC voltage?** a\) Rectifier b) Inverter c) Transformer d) Diode **Answer**: b) Inverter **141.What is the main function of a circuit breaker?** a\) To regulate voltage b) To break the circuit in case of an overload c) To store energy d) To convert DC to AC **Answer**: b) To break the circuit in case of an overload **142.Which of the following is an example of a passive component in a circuit?** a\) Transistor b) Resistor c) Op-amp d) Battery **Answer**: b) Resistor **143.Which instrument is commonly used to measure current in a circuit?** a\) Voltmeter b) Ammeter c) Oscilloscope d) Multimeter **Answer**: b) Ammeter **144.How is the power dissipated in a resistor calculated?** a\) P = I × V b) P = V² / R c) P = R × I d) Both a and b **Answer**: d) Both a and b **145.What is the function of a contactor in a circuit?** a\) To switch high-power devices on and off b) To store electrical energy c) To regulate voltage d) To filter out noise from a signal **Answer**: a) To switch high-power devices on and off **146.What is the typical use of a potentiometer in an electrical circuit?** a\) To measure current b) To store electrical energy c) To adjust resistance or voltage d) To filter high-frequency noise **Answer**: c) To adjust resistance or voltage **147.What type of circuit is typically used for amplifying weak signals?** a\) Voltage divider circuit b) Op-amp circuit c) Rectifier circuit d) Series circuit **Answer**: b) Op-amp circuit **148.What is the most important safety consideration when working with electrical circuits?** a\) Using a fuse b) Avoiding overloads c) Disconnecting power before working on the circuit d\) Using higher voltage components **Answer**: c) Disconnecting power before working on the circuit **149.What type of circuit is most commonly used for power distribution?** a\) Series circuit b) Parallel circuit c) Series-parallel circuit d) Complex circuit **Answer**: b) Parallel circuit **150-151: Basic Concepts** **150.What is the primary purpose of an electrical circuit?** a\) To store energy b) To provide a path for current to flow c) To increase the voltage d) To control current flow **Answer**: b) To provide a path for current to flow **151. Which symbol is used to represent a resistor in an electrical schematic?** a\) A zigzag line b) A circle c) A square d) A triangle **Answer**: a) A zigzag line **152. What unit is used to measure electrical resistance?** a\) Ohm b) Ampere c) Volt d) Watt **Answer**: a) Ohm **153.In a parallel circuit, the voltage across each component is:** a\) Different b) Zero c) The same d) Increased by a factor of two **Answer**: c) The same **154.Which component is used to break an electrical circuit in case of excess current?** a\) Resistor b) Fuse c) Capacitor d) Transistor **Answer**: b) Fuse **155.What is the basic function of a capacitor in an electrical circuit?** a\) To store electrical energy b) To conduct current c) To amplify a signal d) To store charge **Answer**: a) To store electrical energy **156.What is the unit of electrical current?** a\) Volt b) Ampere c) Ohm d) Watt **Answer**: b) Ampere **157.Which of the following represents a switch in an electrical schematic?** a\) A circle b) A break in the wire c) A zigzag line d) A rectangle **Answer**: b) A break in the wire **158.Which of the following is a passive electrical component?** a\) Diode b) Resistor c) Transistor d) Battery **Answer**: b) Resistor **159.What is the unit of electrical power?** a\) Volt b) Ampere c) Watt d) Ohm **Answer**: c) Watt **160-180: Understanding Circuits** **160.How are resistors connected in a series circuit?** a\) In parallel b) End-to-end c) In a closed loop d) Randomly **Answer**: b) End-to-end **161.What does a voltage source do in a circuit?** a\) Provides a path for current b) Amplifies a signal c) Supplies electrical energy d) Stores electrical charge **Answer**: c) Supplies electrical energy **162.In a series circuit, the current is:** a\) The same throughout all components b) Higher in the beginning of the circuit c) Different in each component d) Zero across the circuit **Answer**: a) The same throughout all components **163.What is the role of an inductor in an electrical circuit?** a\) To store energy in the form of a magnetic field b) To store electrical charge c) To regulate voltage d\) To amplify current **Answer**: a) To store energy in the form of a magnetic field **164.What is a common use for a diode in a circuit?** a\) To allow current to flow in only one direction b) To store energy c) To control the current flow d\) To amplify signals **Answer**: a) To allow current to flow in only one direction **165.What happens to the total resistance in a parallel circuit?** a\) It increases b) It stays the same c) It decreases d) It becomes zero **Answer**: c) It decreases **166.What is the function of a relay in a circuit?** a\) To store energy b) To switch high-power components on and off c) To measure current d) To filter noise **Answer**: b) To switch high-power components on and off **167.How can a transformer be used in an electrical system?** a\) To convert AC to DC b) To increase or decrease voltage c) To store electrical energy d) To regulate current **Answer**: b) To increase or decrease voltage **168.What is the symbol for a battery in an electrical schematic?** a\) A circle with a plus sign b) A pair of parallel lines with one longer than the other c) A zigzag line d\) A rectangle with two lines **Answer**: b) A pair of parallel lines with one longer than the other **169.What is Ohm\'s Law?** a\) Power equals voltage times current b) Current equals voltage divided by resistance c) Voltage equals current times resistance d) Resistance equals voltage divided by current **Answer**: b) Current equals voltage divided by resistance **170-179: Advanced Concepts** **170.What does a voltage divider circuit do?** a\) Divides current b) Divides voltage c) Divides power d) Regulates resistance **Answer**: b) Divides voltage **171.What is the main use of a fuse in an electrical circuit?** a\) To reduce power b) To allow current to flow c) To protect the circuit by breaking the connection if current is too high d) To increase voltage **Answer**: c) To protect the circuit by breaking the connection if current is too high **172.What is the symbol for a ground connection in a schematic?** a\) A vertical line with three horizontal lines at the bottom b) A straight line with a zigzag c) A triangle pointing down d) A circle with a line through it **Answer**: a) A vertical line with three horizontal lines at the bottom **173.What is the difference between AC and DC?** a\) AC flows in one direction, DC changes direction b) AC changes direction, DC flows in one direction c\) AC is used in batteries, DC is used in power lines d) There is no difference **Answer**: b) AC changes direction, DC flows in one direction **174.What is the purpose of a circuit breaker?** a\) To regulate current b) To disconnect the circuit in case of overload or fault c) To amplify the current d\) To increase voltage **Answer**: b) To disconnect the circuit in case of overload or fault **175.Which of the following components can regulate voltage?** a\) Transistor b) Capacitor c) Zener diode d) Inductor **Answer**: c) Zener diode **176.What is the primary function of an operational amplifier (Op-Amp)?** a\) To amplify signals b) To control voltage c) To store charge d) To generate electrical energy **Answer**: a) To amplify signals **177.What does the symbol for a light bulb look like in a schematic?** a\) A circle with a cross inside b) A rectangle with two lines c) A circle with an X inside d) A zigzag line inside a circle **Answer**: a) A circle with a cross inside **178.What is the purpose of a potentiometer in a circuit?** a\) To measure current b) To adjust resistance c) To filter high frequencies d) To store energy **Answer**: b) To adjust resistance **179.In a series circuit, if one component fails, what happens?** a\) The entire circuit continues to work b) Only the failed component stops working c) The entire circuit stops working d) The current increases **Answer**: c) The entire circuit stops working **180-189: Safety and Troubleshooting** **180. What is the safest way to disconnect power when working on an electrical circuit?** a\) Switch off the power at the circuit breaker b) Cut the wire with scissors c) Use a voltmeter to check the voltage d) Remove the fuse from the fuse box **Answer**: a) Switch off the power at the circuit breaker **181.What is the primary reason for grounding electrical circuits?** a\) To increase power b) To prevent electric shock c) To regulate current flow d) To increase voltage **Answer**: b) To prevent electric shock **182.What is a short circuit?** a) A circuit with too many resistors b) A circuit where current bypasses the load and flows directly through a conductor c) A circuit with no current flow d) A type of energy storage circuit **Answer**: b) A circuit where current bypasses the load and flows directly through a conductor **183.What should you do if you encounter a burnt-out fuse in a circuit?** a\) Replace it with a higher-rated fuse b) Replace it with a piece of wire c) Inspect the circuit for faults and replace the fuse with the correct rating d) Ignore the fuse and continue working **Answer**: c) Inspect the circuit for faults and replace the fuse with the correct rating **184.Why should you avoid overloading a circuit?** a\) It increases efficiency b) It can cause the circuit to overheat and create fire hazards c) It saves energy d\) It makes the circuit work faster **Answer**: b) It can cause the circuit to overheat and create fire hazards **185.What is the role of a multimeter in electrical troubleshooting?** a\) To measure current, voltage, and resistance b) To store electrical energy c) To switch circuits on and off d) To regulate voltage **Answer**: a) To measure current, voltage, and resistance **186.What safety equipment should be worn when working with electrical systems?** a\) Safety gloves and goggles b) A hard hat and steel-toe boots c) Safety gloves and insulated tools d\) Earplugs and face shields **Answer**: c) Safety gloves and insulated tools **187.What is the first step when troubleshooting an electrical circuit?** a\) Turn off the power and inspect the circuit for visible problems b) Test the circuit with a multimeter c\) Replace components until the problem is fixed d) Increase the voltage **Answer**: a) Turn off the power and inspect the circuit for visible problems **188.Which of the following can help prevent electrical fires in a home?** a\) Overloading circuits b) Using the correct fuse size for appliances c) Running wires under carpets d\) Installing additional outlets without proper wiring **Answer**: b) Using the correct fuse size for appliances **189.What is a common cause of electrical shocks in the workplace?** a\) Faulty insulation on wires b) Properly grounded systems c) Using low-voltage systems d\) Avoiding electrical testing **Answer**: a) Faulty insulation on wires **190-199: Practical Applications** **190.Which of the following is a typical application of a transformer?** a\) Amplifying signals b) Changing the voltage level c) Converting AC to DC d) Filtering high-frequency signals **Answer**: b) Changing the voltage level **191. What does a surge protector do in a circuit?** a\) It increases current b) It prevents voltage spikes from damaging equipment c) It regulates power distribution d) It stores electrical charge **Answer**: b) It prevents voltage spikes from damaging equipment **192.What is the function of a dimmer switch in a lighting circuit?** a) To increase voltage b) To adjust the brightness of the light c) To store electrical energy d) To regulate current flow **Answer**: b) To adjust the brightness of the light **193.What is the main purpose of an electrical schematic diagram?** a\) To show how components are physically arranged b) To provide safety information c) To show how components are electrically connected d) To provide voltage values **Answer**: c) To show how components are electrically connected **194.How do you calculate the total resistance in a series circuit?** a\) By adding the individual resistances b) By dividing the individual resistances c) By using the inverse formula d) By measuring with a multimeter **Answer**: a) By adding the individual resistances **195.What type of circuit is commonly used in home electrical wiring?** a\) Series circuit b) Parallel circuit c) Complex circuit d) Oscillating circuit **Answer**: b) Parallel circuit **196.What is the function of an arc fault circuit interrupter (AFCI)?** a\) To prevent short circuits b) To detect and prevent electrical arcing c) To regulate voltage d\) To protect against power surges **Answer**: b) To detect and prevent electrical arcing **197.What is a common method for protecting circuits from overloads?** a\) Using a fuse or circuit breaker b) Adding extra resistors c) Increasing the voltage d) Using larger wires **Answer**: a) Using a fuse or circuit breaker **198.What type of wiring is typically used for high-power circuits?** a\) Low-voltage wiring b) Heavy-duty gauge wiring c) Thin-gauge wiring d) Flexible wiring **Answer**: b) Heavy-duty gauge wiring **199.How can you ensure proper grounding of a circuit?** a\) By using a three-pronged plug b) By increasing the current c) By using thinner wires d) By bypassing the ground connection **Answer**: a) By using a three-pronged plug **200. Labor protection in the Republic of Kazakhstan is enshrined in the... of the Republic of Kazakhstan, which guarantees the right of citizens to work,... , health protection, as well as... in old age, in case of illness or partial....** A\) Legislation / business trip / health support/ injury B) Occupational safety / vacation/ payment support / work **C) Constitution / rest / material support / disability** D) Occupational safety / vacation/ health support / payment. **201.... of the Republic of Kazakhstan prohibits termination of an employment contract on the initiative of the... with... women, women with children under the age of three, single mothers raising a child under the age of... (a disabled child under eighteen), and other persons raising the specified category of children without a....** A\) Article 145 of the labor protection / employee/ young/ 12 / father B) **Article 185** **of the Labor Code** / **employer / pregnant ** **pregnant** ** overtime** / **business trip** / **written consent** B) employee / young / night / heavy / business trip / children C) employer / pregnant / night / heavy / other work / written consent D) employer / young / night / overtime / business trip / mother **204. Breaks for... the child are included in working.... During the... , women (fathers, adoptive parents, adoptive parents) are paid the... salary.** A\) resting / place / day / minimum B) feeding / conditions / day / maximum C) **feeding / hours/ breaks / average** D) ) day / conditions / resting / maximum **205**. **For... under the age of... , who come to work after graduating from organizations of secondary, technical and vocational... , as well as those who have... vocational training in production,... production rates may be approved.** A\) **employees / 18 / education / completed / reduced** B) employers / 16 / academy / average / increased C) students / 18 / education / completed / minimum D**)** employees / 20 / education / not graduating / reduced **206. It is... to involve workers under 18 years of age to... them on a... and to work performed on a... , as well as to... them from paid....** A\) allowed / send / other work / medical basis/ pay / monthly leave B) **forbidden / send / business trip** / **rotational basis/ recall / annual leave** C) allowed / send / vocation / medical basis/ send / annual leave D) forbidden / leave / business trip / reasonable basis/ recall / monthly leave **207.... working hours are established for them for... of educational organizations... study with work during the... year, at the age of 14 to 16 years -... hours a day, at the age of 16 to 18 years -... hours a day.** A\) **Reduced / students / combining / academic /2.5** / **3.5** B) Reduced / women / combining / academic /1.5 / 2.5 C) Reduced / students / full / calendar /1.5 / 2.5 D) Reduced / students / combining / calendar /3.5 / 4.5 **208. The... for violation of the rules and regulations of... is imposed only on persons of... and... personnel.** A\) lower-paid job / administrative / criminal / managerial B) lower-paid job / law / disciplinary / administrative C) penalty / labor protection / administrative / managerial D) **penalty / labor protection / administrative / managerial** **209. With employees under 18 years of age, it is allowed to conclude an agreement on full liability.** A\) True **B) False** **210.** 1. **Which of the following is NOT listed as an ancillary facility?** a\) Smoking rooms b) Restrooms **c) Conference rooms** d) Showers **211. What is the minimum height from floor to ceiling in household buildings and built-in structures?** A\) 2.0 m **B) 2.5 m** C) 3.0 m D) 3.5 m **213. What is the purpose of vestibules in building entrances?**\ A) To enhance aesthetic appeal B) To provide additional seating **C) To serve as a transitional space**\ D) To store cleaning equipment **214. What should the temperature be in shower rooms during the cold season?**\ A) 16 °C B) 23 °C **C) 25 °C** D) 20 °C **215. What is the required air movement speed in the doorway of administrative and household premises connected with production facilities?**\ A) At least 0.1 m/s **B) At least 0.3 m/s** C) At least 0.5 m/s D) At least 1.0 m/s **216. What is the required temperature in dressing rooms of street clothes during the cold season?\ A) 16 °C** B) 18 °C C) 20 °C D) 25 °C **217. What types of poisoning can result from exposure to harmful substances?**\ A) Mild or moderate poisoning **B) Acute or chronic poisoning** C) Temporary or permanent poisoning\ D) Physical or chemical poisoning **218. Harmful substances can affect a person:\ ** A) Only during the work process **B) Both during work and throughout life** C) Only in the first few hours of exposure D) Only if consumed accidentally **219. Auxiliary rooms and devices are divided into five groups:** **1)** sanitary facilities and devices; **2)** premises of a **...** ; **3)** premises for cultural services; **4)** premises of management and public organizations. **220. Which of the following are not sensitizing substances?**\ A) Compounds of mercury B) Platinum compounds C) Water and oxygen D) Aldehydes (e.g., formaldehyde) **221. Exposure to mutagenic substances can affect offspring in:**\ A) Only the first generation **B) The second and third generations as well** C) None of the offspring generations D) Only the generation exposed to the substance **222. According to the degree of impact on the human body, all harmful substances are divided into... classes. A) 4** B) 5 C) 6 D) only 3 **223.... is a very common hazardous and harmful production factor in various industries.** **224.** Which of the following is an example of the main harmful effects of substances?\ A**) Irritating and asphyxiant effects** B) Sweet and sour effects C) Solid and liquid states, Cooling and heating effects D) all the above\ **225. The effect of harmful substances on the human body is due to their physical and... properties.** **226. What is the acceptable range of air humidity when working with vibrating tools?\ **A) 20--40% **B) 40--60%** C) 60--80% D) 80--100% **227. Which of the following is prohibited when working with vibrating tools?**\ A) Using tools in humid conditions **B) Allowing overtime work with vibrating tools** C) Repairing vibrating tools indoors D) Training individuals over 18 years to use vibrating tools **228. How should wastewater from equipment be drained into the sewage system?\ **A) In an open way **B) In a closed way** C) Through uncovered pipelines D) By mixing with other wastewater **229. Wastewater standards for release into the city sewerage system are determined by:**\ A) Local weather conditions B) International treaties **C) The rules provided by regulations** D) The size of the equipment producing the wastewater **230.** Before releasing wastewater into the city sewerage system, it must be... ,.... **23**1. **Which of the following is listed as a cause of accidents?** a) Overheating of equipment **b) Failure of protective equipment** c) Human error d) Incorrect installation **232.** **Which path is considered less dangerous for the current flow?** a) Hand-to-foot path **b) Leg-to-leg path** c) Body-to-ground path d) Arm-to-arm path **233.** **What factor makes accidents involving step voltage more severe?** a) High electrical resistance **b) Convulsive muscle contractions causing a fall** c) Poor protective equipment d) Sudden power surges **234. What is step voltage defined as?** a) The voltage between two points at any distance from each other **b) The voltage between two points at a step distance of 0.8 meters** c) The voltage in a closed circuit d) The voltage between two conductors on the same line **235. At what approximate distance from the point where the conductor touches the ground can the potential of the soil be considered equal to zero?** a) 0.8 meters b) 10 meters **c) 20 meters** d) 100 meters **236. Which of the following is a factor that influences the risk of electrical shock when touching live parts? a) The circuit of the network itself** b) The color of the insulation c) The height of the electrical installation d) The time of day **237. What role does the neutral mode of the network play in the defeat of a person by electric shock?** a) It has no effect on the electric shock risk **b) It helps in reducing the current flowing through the body** c) It increases the chance of a fatal electric shock d) It affects the voltage of the network **238.** **Which of the following situations is NOT mentioned as a cause for an electric shock?** a) Single-phase (single-pole) touch of live parts while not isolated from the ground b) Simultaneous contact with two energized live parts **c) Contact with an insulated electrical part** d) Approaching unprotected live parts while not isolated from the ground **239.** **Which combination of conditions would most likely make a premises classified as particularly hazardous in terms of electric shock risk?** a) Premises with high humidity and proper insulation of electrical components **b) Premises with high relative humidity and a chemically active environment that deteriorates insulation, or where multiple hazardous conditions exist simultaneously** c) Premises with normal temperature and humidity levels but with outdated electrical equipment d) Premises with a high voltage electrical system and the absence of protective measures **240. Which of the following best describes the concept of \"premises with increased danger\"?** a) Premises that have electrical equipment but lack proper grounding or insulation. **b) Premises where electrical installations are used in hazardous conditions like high humidity, chemical exposure, or other factors that degrade insulation.** c) Premises where electrical installations are in perfect condition with no environmental risks. d) Premises where there is minimal electrical usage and equipment is rarely serviced. **241. Why is it impossible to classify any premises as entirely safe from electric shock?** **a) Because all premises have some level of electrical installation risk due to the potential for failure in insulation or grounding**. b) Because all premises with electrical systems have faulty wiring that poses a constant danger. c) Because only industrial premises require strict safety measures, not residential or commercial. d) Because the voltage levels in electrical installations are unpredictable and beyond human control. **242. How are electrical installations classified from the perspective of safety measures?** a) Based on the type of electrical machines they use **b) Based on the voltage and the type of neutral grounding in the network** c) Based on the materials used for their construction d) Based on whether they are installed indoors or outdoors **243. Which type of electrical installation would be most likely to use safety measures to mitigate high fault currents?** a) Electrical installations with voltage up to 1000 V with insulated neutral b) Electrical installations with voltages above 1000 V in networks with insulated neutral **c) Electrical installations with voltages above 1000 V in networks with effectively grounded neutral\ **d) Electrical installations with voltage up to 1000 V with grounded neutral **244. According to GOST 12.1.038-82, what is the maximum permissible current strength that can flow through the human body for a duration exceeding 1 second without causing harm?** a) 6 mA for direct current and 15 mA for alternating current **b) 6 mA for alternating current at 50 Hz and 15 mA for direct current** c) 6 mA for alternating current at 60 Hz and 12 mA for direct current d) 15 mA for alternating current and 6 mA for direct current **245. According to GOST 12.1.038-82, how does the type of current (alternating vs. direct) affect the permissible level for human exposure in industrial electrical installations?** **a) Alternating current can cause more harm than direct current at the same strength** b) Direct current has a higher permissible limit than alternating current c) Alternating current has a lower permissible limit than direct current d) The permissible limit for both alternating and direct current is the same **246. What should be used to release a victim if the voltage in the network exceeds 1000 V?** A) Rubber gloves **B) A bar and insulating pliers** C) A wooden stick only D) Bare hands **247. What is a key danger to remember if the wire is on the ground?** A) Arc flash B) Electrocution from touching the wire **C) Step voltage** D) Power surges **248. If the victim touches one wire, what is often sufficient to prevent further danger?** A) Disconnect all power sources **B) Ground that wire alone** C) Apply first aid immediately D) Move the victim quickly **249. What is recommended to do to prevent harm while freeing a victim from electric current?** **A) Wrap your hands with dielectric material** B) Use your bare hands to grab the victim C) Operate with both hands simultaneously D) Remove the victim\'s clothing first **250.** **Which of the following is an example of auxiliary protective equipment?**\ A) Shields and barriers **B) Goggles and gloves** C) Cage fences D) Temporary barrier