CES CES Emergency Response & Incident Management 1 — Questions and Answers
Question 1: What is the first action a blaster-in-charge must take upon discovering a misfire (failed detonation) after a blast?
- Immediately drill into the misfired hole to investigate
- Wait the required waiting period (at least 30 minutes for electric, 1 hour for fuse), then approach cautiously following established misfire procedures (Correct answer)
- Flood the blast area with water and walk away
- Contact the explosive manufacturer immediately before taking any other action
Correct answer: Wait the required waiting period (at least 30 minutes for electric, 1 hour for fuse), then approach cautiously following established misfire procedures
Federal and industry misfire procedures require a mandatory waiting period before approaching, then following specific steps such as introducing water or firing a secondary charge down the collar.
Question 2: Under 27 CFR Part 555, who is required to notify ATF when explosive materials are lost or stolen?
- Only the end-user customer
- The licensee or permittee must report theft or loss to ATF and local law enforcement within 24 hours of discovery (Correct answer)
- Only the manufacturer of the explosive
- Reporting is voluntary and not legally required
Correct answer: The licensee or permittee must report theft or loss to ATF and local law enforcement within 24 hours of discovery
ATF regulations require federal explosives licensees and permittees to report theft or loss of explosives to ATF and local law enforcement within 24 hours.
Question 3: What is the immediate hazard concern when an explosive storage magazine catches fire?
- Only smoke inhalation from burning cardboard packaging
- Mass detonation of the stored explosives, generating lethal blast wave, fragmentation, and fire (Correct answer)
- Toxic fumes from burning blasting caps only
- Electrical shorts from detonator wire insulation
Correct answer: Mass detonation of the stored explosives, generating lethal blast wave, fragmentation, and fire
A magazine fire presents a risk of mass detonation that can kill personnel and damage structures far beyond the magazine site.
Question 4: What does ICS (Incident Command System) provide during a post-blast emergency involving injuries?
- A standardized command structure that coordinates emergency responders and manages resources effectively (Correct answer)
- A checklist for filling out ATF Form 5400.4 after an incident
- A system to determine legal liability for the blast contractor
- A computer software suite for calculating blast energy
Correct answer: A standardized command structure that coordinates emergency responders and manages resources effectively
ICS provides a scalable, standardized management structure used by emergency responders to coordinate roles, communications, and resources at incident scenes.
Question 5: When a premature blast injures workers, what is the blaster-in-charge legally required to document?
- Only the number of workers present at the time
- A complete incident report including cause, circumstances, injuries, witnesses, and corrective actions, submitted to ATF and applicable state authorities (Correct answer)
- A verbal apology to the injured workers
- Only OSHA 300 log entries if a fatality occurred
Correct answer: A complete incident report including cause, circumstances, injuries, witnesses, and corrective actions, submitted to ATF and applicable state authorities
ATF and OSHA regulations require detailed incident reporting for explosive accidents, including cause investigation, injury data, and corrective measures.
Question 6: What is the purpose of a 'post-blast inspection' following a production blast?
- To verify all explosives detonated, check for misfires, assess fragmentation, and identify any damage outside the blast zone (Correct answer)
- To collect spent casings for recycling
- To measure the cost of explosives consumed during the blast
- To update the crew payroll for the shift
Correct answer: To verify all explosives detonated, check for misfires, assess fragmentation, and identify any damage outside the blast zone
Post-blast inspection confirms complete detonation, identifies misfires requiring remediation, and documents any unintended damage for liability and operational improvement.
CES CES Emergency Response & Incident Management 1
What is the first action a blaster-in-charge must take upon discovering a misfire (failed detonation) after a blast?