Question

question 18 of 19

what event triggers the activation of security lights to deter crime?

a specific time of night
the sound of a window breaking
detection of movement
a manual switch by police

Explanation:

Analyze the purpose of security lights

Security lights designed to deter crime are typically motion-activated. When an intruder enters a monitored area, their movement triggers the sensors, instantly illuminating the space to startle the intruder and alert others.

Evaluate the given options

• "A specific time of night": This describes timer-controlled lighting, which is useful but does not dynamically react to an intruder's presence.
• "The sound of a window breaking": This typically triggers acoustic glass-break sensors connected to silent or audible alarms, not standard security lights.
• "Detection of movement": This directly triggers motion-activated security lights (PIR sensors), which is the standard mechanism for deterring trespassers.
• "A manual switch by police": This is not an automated trigger mechanism for deterring active crimes on private property.

Answer:

• (A) A specific time of night
• (B) The sound of a window breaking
• (C) Detection of movement (Correct answer)
• (D) A manual switch by police