Question 1

What is the primary purpose of exterior security lighting on DoD installations?

Accepted Answer

The primary purpose of exterior security lighting is to illuminate sensitive areas and deter and detect intruders. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "By illuminating these areas, exterior security lighting aids us in deterring and detecting intruders." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 2

What are the physical components of a light fixture?

Accepted Answer

The physical components of a light fixture include the lamp, ballast, and lens. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "A light fixture consists of a lamp, a ballast, and a lens." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 3

What is the role of a ballast in a light fixture?

Accepted Answer

A ballast is used to obtain the necessary circuit conditions of voltage, current, and waveform for starting and operating the light source. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "A ballast is a device used with an electric discharge light source to obtain the necessary circuit conditions of voltage, current, and waveform for starting and operating." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 4

How does low-level lighting benefit security forces?

Accepted Answer

Low-level lighting allows security forces to see for long distances and minimizes their visibility to intruders. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "Low level lighting must be used on security forces to minimize their visibility to intruders." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 5

What is light trespass and how can it be minimized?

Accepted Answer

Light trespass occurs when light from one area spills over into an adjoining area, and it can be minimized by using shielded light fixtures and avoiding over lighting areas. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "Light trespass can cause interference with the security of the adjoining area." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 6

What is the significance of vertical illuminance in security applications?

Accepted Answer

Vertical illuminance is important for identification at security checkpoints, as it allows security personnel to see faces clearly. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "Vertical illuminance on people's faces is important for identification at security checkpoints." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 7

What is the recommended action when light fixtures are in poor condition?

Accepted Answer

Light fixtures that are in poor condition should be replaced, especially if they create hazardous situations. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "If the light fixtures are in poor condition, especially those creating hazardous situations, they should be replaced." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 8

What type of lighting should be used to keep security forces in relative darkness?

Accepted Answer

Continuous lighting with glare projection should be used to keep security forces in relative darkness. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "With glare projection, lamps are mounted on poles inside the protected area and directed outward to make it difficult to see inside the area." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 9

What is the average rated life of incandescent lamps?

Accepted Answer

The average rated life for incandescent lamps ranges from 750 to 3,500 hours. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "The average rated life for incandescent lamps is 750 to 3,500 hours." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 10

What is the main consideration for lamp efficacy?

Accepted Answer

Lamp efficacy refers to the amount of light produced by a light source for every watt of energy consumed. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "Lamp efficacy or efficiency refers to the amount of light produced by a light source for every watt of energy." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 11

What type of light fixture is used to control light trespass and direct glare?

Accepted Answer

Cut-off light fixtures are used where control of light trespass and direct glare is important. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "Cut-off light fixtures are used where control of light trespass and direct glare is important." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

Question 12

What is the purpose of using solid state lighting (SSL) in exterior security?

Accepted Answer

Solid state lighting (SSL) is used for its efficiency and long lifespan compared to traditional lighting technologies. [Source: CDSE — Exterior Security Lighting (PY109.16) Student Guide — "The most energy efficient technologies are solid state lighting (SSL) light-emitting diode (LED) and induction lighting systems." https://www.cdse.edu/Portals/124/Documents/student-guides/PY109-guide.pdf]

exterior security lighting

Know questions we're missing?

Want to study these as flashcards?