Blasters exam study guide | 2026 Update Questions
with complete solutions.
qualifications for a blasters license?
-21 years old
-3 years blasting experience
-pass an exam
-no felonies or dishonorable discharge
licensed blaster responsibilities
responisible for all blasting activities regardless of whether an assistant does the work
what happens if your blaster's license gets suspended?
must be notified by cal osha, blaster is entitled to a hearing
what is required during transportation of explosives
-licensed blaster must be on scene
-no flamable materials in the area
-vehicle must be marked with a placcard with letters 8" tall
-vehicles must be inspected every 7 days
-carry a fire extinguisher
-never fight the fire
type 1 magazine
long term
-permanently installed
, -50' radius clear of brush and low voltage lines
-100' marked with signs and clear of high voltage lines
-two 5 tumbler locks with different keys covered by metal hoods
3/8" hardened steel walls 3/4" vent
type 2 magazine
temporary storage of explosives
-permanently installed
-2 locks as above
type 3 magazine
portable "day box"
must be emptied at the end of the day.
must be monitored at all times
1 lock is ok
type 4 magazine
permanent storage of low explosive and or blasting agents
type 5 magazine
permanent storage of blasting agents
applies to all magazines
detonators never stored with explosive
-explosives stacked according to type
with complete solutions.
qualifications for a blasters license?
-21 years old
-3 years blasting experience
-pass an exam
-no felonies or dishonorable discharge
licensed blaster responsibilities
responisible for all blasting activities regardless of whether an assistant does the work
what happens if your blaster's license gets suspended?
must be notified by cal osha, blaster is entitled to a hearing
what is required during transportation of explosives
-licensed blaster must be on scene
-no flamable materials in the area
-vehicle must be marked with a placcard with letters 8" tall
-vehicles must be inspected every 7 days
-carry a fire extinguisher
-never fight the fire
type 1 magazine
long term
-permanently installed
, -50' radius clear of brush and low voltage lines
-100' marked with signs and clear of high voltage lines
-two 5 tumbler locks with different keys covered by metal hoods
3/8" hardened steel walls 3/4" vent
type 2 magazine
temporary storage of explosives
-permanently installed
-2 locks as above
type 3 magazine
portable "day box"
must be emptied at the end of the day.
must be monitored at all times
1 lock is ok
type 4 magazine
permanent storage of low explosive and or blasting agents
type 5 magazine
permanent storage of blasting agents
applies to all magazines
detonators never stored with explosive
-explosives stacked according to type
