Colorado Quarry Operations Certification
Practice Examination 100 Questions with
Correct Answers Plus Explanation 2026/27
Instant Pdf Download
Section 1: Regulatory Framework and Certification Requirements
(Questions 1-15)
1. Under 2 CCR 407-2-6, who must be certified to conduct surface
blasting operations in Colorado?
a) Any employee of the mining company
b) A certified blaster
c) A mine foreman
d) A state inspector
Correct Answer: b) A certified blaster
Explanation: The regulation requires that each blasting operation be
conducted under the direction of an individual who has been
certified by the Department .
2. How long is a blaster certification valid in Colorado?
a) 1 year
b) 2 years
c) 3 years
d) 5 years
Correct Answer: d) 5 years
Explanation: Certifications expire five years after issuance and may
be recertified for another five-year period .
,3. What are the requirements to obtain blaster certification in
Colorado?
a) Submit an application and pass the exam
b) Have practical field experience, successfully complete a training
course, and pass an examination
c) Only pass the written examination
d) Complete a self-study course only
Correct Answer: b) Have practical field experience, successfully
complete a training course, and pass an examination
Explanation: Applicants must demonstrate practical field experience
qualifying them to accept responsibility for blasting operations,
successfully complete a blaster training course, and achieve a
passing grade on the Division examination .
4. If an applicant fails the blaster certification examination a second
time, what is required?
a) Wait six months and retake the exam
b) Complete the blaster training course again and reapply before
retaking the examination
c) Take a different examination
d) Appeal the decision to the Division
Correct Answer: b) Complete the blaster training course again and
reapply before retaking the examination
Explanation: If the applicant fails the examination a second time,
they must complete the blaster training course again and reapply
for certification before retaking the examination .
5. For recertification of a blaster, the applicant must submit an
application at least how many days prior to expiration?
, a) 30 days
b) 45 days
c) 60 days
d) 90 days
Correct Answer: c) 60 days
Explanation: For recertification, the blaster must submit an
application at least 60 days prior to expiration of the certification .
6. Under 2 CCR 407-2-6, a certified blaster may delegate blasting
responsibilities to:
a) Any experienced crew member
b) A mine foreman
c) Another certified blaster only
d) A trainee under supervision
Correct Answer: c) Another certified blaster only
Explanation: A certified blaster may not delegate the responsibility
for blasting operations to any individual who is not a certified
blaster .
7. What is the on-site documentation requirement for a certified
blaster?
a) A copy of the mining permit
b) The blaster certificate must be produced upon request to authorized
representatives
c) A daily log of blasting activities
d) A list of all blasting crew members
Correct Answer: b) The blaster certificate must be produced upon
request to authorized representatives
Practice Examination 100 Questions with
Correct Answers Plus Explanation 2026/27
Instant Pdf Download
Section 1: Regulatory Framework and Certification Requirements
(Questions 1-15)
1. Under 2 CCR 407-2-6, who must be certified to conduct surface
blasting operations in Colorado?
a) Any employee of the mining company
b) A certified blaster
c) A mine foreman
d) A state inspector
Correct Answer: b) A certified blaster
Explanation: The regulation requires that each blasting operation be
conducted under the direction of an individual who has been
certified by the Department .
2. How long is a blaster certification valid in Colorado?
a) 1 year
b) 2 years
c) 3 years
d) 5 years
Correct Answer: d) 5 years
Explanation: Certifications expire five years after issuance and may
be recertified for another five-year period .
,3. What are the requirements to obtain blaster certification in
Colorado?
a) Submit an application and pass the exam
b) Have practical field experience, successfully complete a training
course, and pass an examination
c) Only pass the written examination
d) Complete a self-study course only
Correct Answer: b) Have practical field experience, successfully
complete a training course, and pass an examination
Explanation: Applicants must demonstrate practical field experience
qualifying them to accept responsibility for blasting operations,
successfully complete a blaster training course, and achieve a
passing grade on the Division examination .
4. If an applicant fails the blaster certification examination a second
time, what is required?
a) Wait six months and retake the exam
b) Complete the blaster training course again and reapply before
retaking the examination
c) Take a different examination
d) Appeal the decision to the Division
Correct Answer: b) Complete the blaster training course again and
reapply before retaking the examination
Explanation: If the applicant fails the examination a second time,
they must complete the blaster training course again and reapply
for certification before retaking the examination .
5. For recertification of a blaster, the applicant must submit an
application at least how many days prior to expiration?
, a) 30 days
b) 45 days
c) 60 days
d) 90 days
Correct Answer: c) 60 days
Explanation: For recertification, the blaster must submit an
application at least 60 days prior to expiration of the certification .
6. Under 2 CCR 407-2-6, a certified blaster may delegate blasting
responsibilities to:
a) Any experienced crew member
b) A mine foreman
c) Another certified blaster only
d) A trainee under supervision
Correct Answer: c) Another certified blaster only
Explanation: A certified blaster may not delegate the responsibility
for blasting operations to any individual who is not a certified
blaster .
7. What is the on-site documentation requirement for a certified
blaster?
a) A copy of the mining permit
b) The blaster certificate must be produced upon request to authorized
representatives
c) A daily log of blasting activities
d) A list of all blasting crew members
Correct Answer: b) The blaster certificate must be produced upon
request to authorized representatives
