COLORADO (DENVER) ACCESS CONTROL SUPERVISOR - CONTRACTOR EXAM 490_CO_D
PRACTICE TEST
1. What is the primary purpose of an Access Control Supervisor certification in Denver,
Colorado?
A) To authorize general electrical work
B) To ensure individuals supervising the installation, maintenance, and repair of low-
voltage access control systems are qualified
C) To allow work on fire alarm systems
D) To certify locksmiths
Answer: B
Explanation: This specific certification under Denver's licensing framework is for
supervisors of access control (security) systems, ensuring they have the requisite
knowledge of codes, safety, and installation practices.
2. In Denver, which department issues the Access Control Supervisor license?
A) Denver Fire Department
B) Department of Excise and Licenses
C) Community Planning and Development (CPD)
D) Public Works
Answer: B
Explanation: The Department of Excise and Licenses (or the specific licensing division)
issues trade licenses for contractors, including Access Control Supervisors.
3. Which Denver license classification typically covers low-voltage alarm and access
control work?
A) Electrical Contractor
B) Fire Suppression Contractor
C) Low-Voltage (LV) Contractor
,D) Plumbing Contractor
Answer: C
Explanation: Low-Voltage Contractor licenses cover systems like security, access control,
telecommunications, and data, operating below a certain voltage threshold.
4. According to the National Electrical Code (NEC), what is the voltage threshold typically
defining a "low-voltage" or "power-limited" circuit for signaling and communications?
A) 24 volts
B) 50 volts
C) 100 volts
D) 600 volts
Answer: B
Explanation: NEC Article 725 (Class 1, 2, and 3 circuits) and other low-voltage articles
generally reference circuits of 50 volts or less, with specific power limitations.
5. NEC Article 725 covers:
A) Communication Circuits
B) Remote-Control, Signaling, and Power-Limited Circuits
C) Fire Alarm Systems
D) Optical Fiber Cables
Answer: B
Explanation: Article 725 is specifically for "Remote-Control, Signaling, and Power-Limited
Circuits," which includes many access control system components.
6. NEC Article 760 covers:
A) Communication Circuits
B) Remote-Control, Signaling, and Power-Limited Circuits
,C) Fire Alarm Systems
D) Optical Fiber Cables
Answer: C
Explanation: Article 760 is for "Fire Alarm Systems." It's critical to know that fire alarm work
often requires a separate, specific license.
7. Which NEC article specifically addresses the installation of wiring and equipment for
access control and burglar alarm systems?
A) Article 640
B) Article 725
C) Article 760
D) Article 800
Answer: B
Explanation: While Article 760 is for fire alarms, Article 725 is the primary article governing
power-limited circuits used in security and access control.
8. A "Class 2" circuit as defined by NEC Article 725 is:
A) A line-voltage circuit
B) A power-limited circuit that poses a reduced risk of fire and electric shock
C) A circuit that must be installed in conduit
D) A high-voltage circuit for motors
Answer: B
Explanation: Class 2 circuits have power sources with limits on voltage and current,
providing safety from fire initiation and electric shock, allowing for less restrictive wiring
methods.
9. In Denver, a permit is generally required for the installation of a new access control
system:
, A) Never, it's low-voltage
B) Only for commercial buildings
C) When required by the Building/Fire Code official; typically yes for new installations
D) Only if the cost exceeds $5,000
Answer: C
Explanation: Most jurisdictions, including Denver, require permits for low-voltage system
installations to ensure compliance with codes. The installer (or contractor) is responsible
for obtaining it.
10. The "Authority Having Jurisdiction" (AHJ) for approving an access control system
installation is typically the:
A) Equipment manufacturer
B) Building or Fire Department inspector
C) Property owner
D) System designer
Answer: B
Explanation: The AHJ is the governmental office (Building, Electrical, or Fire Department)
that enforces the code and grants final approval.
11. The primary model building code adopted by Denver is based on the:
A) Uniform Building Code (UBC)
B) International Building Code (IBC)
C) National Building Code
D) Denver Residential Code only
Answer: B
Explanation: Denver, like most of Colorado, has adopted the International Building Code
(IBC) and International Fire Code (IFC), with local amendments.
PRACTICE TEST
1. What is the primary purpose of an Access Control Supervisor certification in Denver,
Colorado?
A) To authorize general electrical work
B) To ensure individuals supervising the installation, maintenance, and repair of low-
voltage access control systems are qualified
C) To allow work on fire alarm systems
D) To certify locksmiths
Answer: B
Explanation: This specific certification under Denver's licensing framework is for
supervisors of access control (security) systems, ensuring they have the requisite
knowledge of codes, safety, and installation practices.
2. In Denver, which department issues the Access Control Supervisor license?
A) Denver Fire Department
B) Department of Excise and Licenses
C) Community Planning and Development (CPD)
D) Public Works
Answer: B
Explanation: The Department of Excise and Licenses (or the specific licensing division)
issues trade licenses for contractors, including Access Control Supervisors.
3. Which Denver license classification typically covers low-voltage alarm and access
control work?
A) Electrical Contractor
B) Fire Suppression Contractor
C) Low-Voltage (LV) Contractor
,D) Plumbing Contractor
Answer: C
Explanation: Low-Voltage Contractor licenses cover systems like security, access control,
telecommunications, and data, operating below a certain voltage threshold.
4. According to the National Electrical Code (NEC), what is the voltage threshold typically
defining a "low-voltage" or "power-limited" circuit for signaling and communications?
A) 24 volts
B) 50 volts
C) 100 volts
D) 600 volts
Answer: B
Explanation: NEC Article 725 (Class 1, 2, and 3 circuits) and other low-voltage articles
generally reference circuits of 50 volts or less, with specific power limitations.
5. NEC Article 725 covers:
A) Communication Circuits
B) Remote-Control, Signaling, and Power-Limited Circuits
C) Fire Alarm Systems
D) Optical Fiber Cables
Answer: B
Explanation: Article 725 is specifically for "Remote-Control, Signaling, and Power-Limited
Circuits," which includes many access control system components.
6. NEC Article 760 covers:
A) Communication Circuits
B) Remote-Control, Signaling, and Power-Limited Circuits
,C) Fire Alarm Systems
D) Optical Fiber Cables
Answer: C
Explanation: Article 760 is for "Fire Alarm Systems." It's critical to know that fire alarm work
often requires a separate, specific license.
7. Which NEC article specifically addresses the installation of wiring and equipment for
access control and burglar alarm systems?
A) Article 640
B) Article 725
C) Article 760
D) Article 800
Answer: B
Explanation: While Article 760 is for fire alarms, Article 725 is the primary article governing
power-limited circuits used in security and access control.
8. A "Class 2" circuit as defined by NEC Article 725 is:
A) A line-voltage circuit
B) A power-limited circuit that poses a reduced risk of fire and electric shock
C) A circuit that must be installed in conduit
D) A high-voltage circuit for motors
Answer: B
Explanation: Class 2 circuits have power sources with limits on voltage and current,
providing safety from fire initiation and electric shock, allowing for less restrictive wiring
methods.
9. In Denver, a permit is generally required for the installation of a new access control
system:
, A) Never, it's low-voltage
B) Only for commercial buildings
C) When required by the Building/Fire Code official; typically yes for new installations
D) Only if the cost exceeds $5,000
Answer: C
Explanation: Most jurisdictions, including Denver, require permits for low-voltage system
installations to ensure compliance with codes. The installer (or contractor) is responsible
for obtaining it.
10. The "Authority Having Jurisdiction" (AHJ) for approving an access control system
installation is typically the:
A) Equipment manufacturer
B) Building or Fire Department inspector
C) Property owner
D) System designer
Answer: B
Explanation: The AHJ is the governmental office (Building, Electrical, or Fire Department)
that enforces the code and grants final approval.
11. The primary model building code adopted by Denver is based on the:
A) Uniform Building Code (UBC)
B) International Building Code (IBC)
C) National Building Code
D) Denver Residential Code only
Answer: B
Explanation: Denver, like most of Colorado, has adopted the International Building Code
(IBC) and International Fire Code (IFC), with local amendments.
