Podcast
Questions and Answers
What is the unit of measurement for voltage?
What is the unit of measurement for voltage?
- Amps
- Hertz
- Volts (correct)
- Ohms
Which of the following materials is an insulator?
Which of the following materials is an insulator?
- Glass (correct)
- Aluminum
- Copper
- Iron
What is the minimum distance that must be maintained for a voltage of 150,000–250,000 V according to the Canadian Electrical Code’s Safe Limits of Approach?
What is the minimum distance that must be maintained for a voltage of 150,000–250,000 V according to the Canadian Electrical Code’s Safe Limits of Approach?
- 4.5 m (15 ft) (correct)
- 6 m (20 ft)
- 1 m (3 ft)
- 3 m (10 ft)
What is the term used to describe a sudden release of electrical energy bridging a gap between two conductors?
What is the term used to describe a sudden release of electrical energy bridging a gap between two conductors?
Which of the following materials has a value of resistance between that of insulators and conductors?
Which of the following materials has a value of resistance between that of insulators and conductors?
Loose connections and overloaded electrical conductors or motors cause which of the following?
Loose connections and overloaded electrical conductors or motors cause which of the following?
What is the term used to refer to the difference in potential voltage when touching an energized source?
What is the term used to refer to the difference in potential voltage when touching an energized source?
What term is used to describe a flow of electrical charge, typically measured in amperes (A)?
What term is used to describe a flow of electrical charge, typically measured in amperes (A)?
In the electrical industry, anything below 750 V is commonly referred to as:
In the electrical industry, anything below 750 V is commonly referred to as:
Which term describes the process of joining together two conductors that do not carry currents?
Which term describes the process of joining together two conductors that do not carry currents?
What is the recommended approach for rescue teams when a vehicle contacts overhead power lines?
What is the recommended approach for rescue teams when a vehicle contacts overhead power lines?
What should operators of equipment used during trenching and excavation activities do in relation to buried power and communication lines?
What should operators of equipment used during trenching and excavation activities do in relation to buried power and communication lines?
What precaution should mine rescue teams take before conducting rescue operations in electrical emergencies?
What precaution should mine rescue teams take before conducting rescue operations in electrical emergencies?
What is the recommended action for response vehicles upon arriving at the incident scene involving electrical hazards?
What is the recommended action for response vehicles upon arriving at the incident scene involving electrical hazards?
What should be established in all directions from downed power lines as part of controlling the incident scene in electrical emergencies?
What should be established in all directions from downed power lines as part of controlling the incident scene in electrical emergencies?
What should be guarded against when working near energy sources in electrical emergencies?
What should be guarded against when working near energy sources in electrical emergencies?
What should be used when working near energy sources as per site-specific isolation procedures?
What should be used when working near energy sources as per site-specific isolation procedures?
What should be avoided while raising or lowering ladders, elevated work platforms, and booms near power lines?
What should be avoided while raising or lowering ladders, elevated work platforms, and booms near power lines?
What kind of streams should not be used on fires in energized electrical equipment?
What kind of streams should not be used on fires in energized electrical equipment?
What should be heeded when wires are down during an electrical emergency?
What should be heeded when wires are down during an electrical emergency?
What is the primary objective of Chapter 4 in the Western Canada Mine Rescue Manual?
What is the primary objective of Chapter 4 in the Western Canada Mine Rescue Manual?
What are the key competencies that trainees are expected to demonstrate upon completion of Chapter 4?
What are the key competencies that trainees are expected to demonstrate upon completion of Chapter 4?
Which of the following factors affects the severity of electrical injuries?
Which of the following factors affects the severity of electrical injuries?
What is the range of voltages at which transmission lines operate?
What is the range of voltages at which transmission lines operate?
How does moisture on the skin affect the severity of electrical injuries?
How does moisture on the skin affect the severity of electrical injuries?
What are the injuries that can result from electrocution at heights?
What are the injuries that can result from electrocution at heights?
How is electric power generated in the context of this chapter?
How is electric power generated in the context of this chapter?
According to Chapter 4, what decreases the body’s resistance and increases the severity of electrical injuries?
According to Chapter 4, what decreases the body’s resistance and increases the severity of electrical injuries?
What is the primary factor that kills or injures when it comes to exposure to electricity?
What is the primary factor that kills or injures when it comes to exposure to electricity?
At what current level does an individual experience a slight tingling sensation from electrical exposure?
At what current level does an individual experience a slight tingling sensation from electrical exposure?
What is the range of current where an individual cannot let go and death is possible?
What is the range of current where an individual cannot let go and death is possible?
What type of injury can result from exposure to a large electric arc?
What type of injury can result from exposure to a large electric arc?
What should emergency personnel do if a fallen wire lies under a vehicle with occupants?
What should emergency personnel do if a fallen wire lies under a vehicle with occupants?
What is a major cause of fatalities in the industry for crane operators?
What is a major cause of fatalities in the industry for crane operators?
What is the primary factor that creates hazards when electrical equipment or wires become faulty?
What is the primary factor that creates hazards when electrical equipment or wires become faulty?
What should rescuers do upon arrival at a substation or generator fire?
What should rescuers do upon arrival at a substation or generator fire?
What should be done if a wire springs up after being released when a vehicle moves away from it?
What should be done if a wire springs up after being released when a vehicle moves away from it?
Under what condition does an arc flash hazard exist?
Under what condition does an arc flash hazard exist?
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