CAT CAT Burglar Alarm Components & Detection

Question 1

A passive infrared (PIR) motion detector works by sensing:

Accepted Answer

Changes in infrared energy emitted by warm moving bodies

Answer

Changes in radio frequency signals in the detection zone

Answer

Reflected ultrasonic sound waves from moving objects

Answer

Changes in visible ambient light levels

Question 2

What type of sensor uses a magnet and a reed switch mounted on a door or window frame?

Accepted Answer

Magnetic contact sensor

Answer

Vibration sensor

Answer

Glass break sensor

Answer

Pressure mat sensor

Question 3

Up to what distance are glass break acoustic detectors typically rated to detect glass breakage?

Accepted Answer

25 feet

Answer

5 feet

Answer

10 feet

Answer

15 feet

Question 4

What are the TWO primary purposes of entry and exit delay settings in a burglar alarm system?

Accepted Answer

Allow authorized users time to enter/exit without triggering an alarm and reduce false alarms

Answer

Reduce power consumption and extend battery life

Answer

Test the communication path and log entry events

Answer

Enable remote arming and prevent accidental zone bypasses

Question 5

A dual-technology motion detector reduces false alarms by combining which two sensing technologies?

Accepted Answer

PIR and microwave

Answer

Ultrasonic and infrared thermography

Answer

Laser grid and radar

Answer

Camera imaging and PIR

Question 6

What does a 'normally closed' (NC) alarm contact mean?

Accepted Answer

The circuit is complete (closed) when the device is undisturbed

Answer

The circuit is open (broken) when the device is undisturbed

Answer

The device requires a key to change its state

Answer

The device only activates when externally powered