Red Seal Heavy Duty Equipment Technician Practice Exam

Which risk is associated with working near live electrical equipment?

1. Electric shock

2. Mechanical injuries

3. Exhaust fumes

4. Chemical burns

The correct answer is: Electric shock

Working near live electrical equipment presents a significant risk of electric shock, which occurs when a person comes into contact with an energized source of electricity. Electric shock can lead to serious injuries, including burns, muscle spasms, nerve damage, or even fatality depending on the voltage and duration of exposure. The effects of electric shock can vary widely; even a small amount of current can interfere with the body's electrical signals, potentially leading to severe physiological consequences. The other risks mentioned, such as mechanical injuries, exhaust fumes, and chemical burns, are relevant in various contexts but do not specifically pertain to the immediate dangers posed by live electrical equipment. Mechanical injuries typically arise from tools, machinery, and equipment operations, while exhaust fumes are associated with combustion engines and other machinery running on fuel. Chemical burns occur from exposure to hazardous substances, which is not directly linked to electrical hazards. Therefore, the primary risk of working near live electrical equipment is indeed electric shock.