CME Safety and Emergency Procedures 2 — Questions and Answers
Question 1: When performing CPR on a victim of electrical shock, how many chest compressions per minute should be administered according to current AHA guidelines?
- 60 compressions per minute
- 80 compressions per minute
- 100–120 compressions per minute (Correct answer)
- 140 compressions per minute
Correct answer: 100–120 compressions per minute
The American Heart Association recommends 100–120 chest compressions per minute during CPR.
Question 2: Under OSHA 29 CFR 1910.147, which condition must be met before an authorized employee removes a lockout/tagout device they did not install?
- A supervisor verbally authorizes removal
- The original employee is verified to be off-site or unavailable
- A specific documented procedure is followed including attempts to locate the employee (Correct answer)
- The energy-isolating device is verified de-energized by a second person
Correct answer: A specific documented procedure is followed including attempts to locate the employee
OSHA requires a specific documented procedure—including efforts to locate the installing employee—before another authorized employee removes the device.
Question 3: Which class of fire extinguisher is specifically rated for energized electrical equipment fires?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C extinguishers use non-conductive agents and are rated for energized electrical equipment fires.
Question 4: A worker contacts an energized 480V conductor and is thrown clear. After calling 911, what is the rescuer's immediate priority?
- Remove wet clothing to prevent further shock
- Begin CPR only if the victim is unresponsive and not breathing (Correct answer)
- Move the victim away from the electrical hazard using a non-conductive object if safe
- Administer water to treat burns
Correct answer: Begin CPR only if the victim is unresponsive and not breathing
The rescuer should ensure the scene is safe, then begin CPR immediately if the victim is unresponsive and not breathing normally.
Question 5: According to NFPA 70E, what is the minimum approach boundary within which all exposed energized conductors operating at 601–2,500V must be treated as energized?
- Restricted approach boundary
- Limited approach boundary (Correct answer)
- Prohibited approach boundary
- Arc flash boundary
Correct answer: Limited approach boundary
The limited approach boundary is the closest distance at which unqualified persons are permitted and within which all conductors must be treated as energized.
Question 6: When using a Class II GFI (Ground Fault Interrupter) in a construction environment, at what ground fault current level does the device trip?
- 0.5 mA
- 4–6 mA (Correct answer)
- 10 mA
- 15 mA
Correct answer: 4–6 mA
Personnel-protection GFCIs trip at 4–6 mA of ground fault current to prevent lethal electrocution.
Question 7: Which OSHA standard mandates an Emergency Action Plan (EAP) for workplaces with more than 10 employees, covering procedures for employee evacuation?
- 29 CFR 1910.119
- 29 CFR 1910.38 (Correct answer)
- 29 CFR 1910.147
- 29 CFR 1910.333
Correct answer: 29 CFR 1910.38
OSHA 29 CFR 1910.38 requires a written Emergency Action Plan for facilities with more than 10 employees.
CME Safety and Emergency Procedures 2
When performing CPR on a victim of electrical shock, how many chest compressions per minute should be administered according to current AHA guidelines?