CAT Problem-Solving and Critical Thinking 5

Question 1

A monitored alarm system repeatedly sends false alarms to the central station from a single zone. The customer refuses to let you inspect the zone. What is the best professional response?

Accepted Answer

Document the customer's refusal, bypass the zone temporarily, and inform them of liability implications

Answer

Immediately cancel the monitoring contract

Answer

Disconnect the entire system

Answer

Ignore the issue and let the monitoring center handle it

Question 2

A fire alarm panel annunciates a 'ground fault' trouble. What does this indicate and where should the technician look?

Accepted Answer

A conductor in the wiring has made unintended contact with a grounded surface, creating a current path to ground

Answer

The panel needs firmware update

Answer

The backup battery is reversed

Answer

A smoke detector head needs cleaning

Question 3

A technician is installing an alarm system in a historic building where drilling through walls is prohibited. Which approach best solves the wiring challenge?

Accepted Answer

Use a wireless alarm system with battery-powered sensors

Answer

Refuse the installation

Answer

Run exposed conduit on all interior surfaces

Answer

Use only door contacts and skip motion detectors

Question 4

During testing, a siren produces sound but at a significantly lower volume than specified. What is the most likely cause?

Accepted Answer

Voltage drop due to undersized or excessively long wire run to the siren

Answer

The siren is the wrong color for the installation

Answer

The control panel software needs updating

Answer

The siren is facing the wrong direction

Question 5

A customer reports that arming the system in 'stay' mode still triggers their bedroom motion detector when they move around at night. What is the most likely programming error?

Accepted Answer

The bedroom motion detector zone is not programmed as an interior follower zone excluded from stay mode

Answer

The keypad is faulty

Answer

The siren is too sensitive

Answer

The panel clock is set incorrectly

Question 6

A technician arrives to service an alarm system and finds the panel flooded with trouble conditions after a lightning storm. What should be done first?

Accepted Answer

Inspect the panel for surge damage, check all wiring for shorts or burns, and test communication paths before restoring the system

Answer

Replace all sensors immediately

Answer

Reboot the panel and clear all troubles without inspection

Answer

Call the monitoring center to put the account on test

Question 7

A technician notices that an end-of-line resistor is missing from a normally closed zone during a routine inspection. What is the security implication?

Accepted Answer

Without the EOLR, a cut wire would not generate a trouble alarm, allowing the zone to be defeated without detection

Answer

No implication — resistors are optional on normally closed zones

Answer

The zone will false alarm constantly

Answer

The panel will not power on