FSD FSD Troubleshooting & Repair

Question 1

What is the most common cause of fire damper failure during an inspection?

Accepted Answer

Corroded or seized blades preventing full closure

Answer

Corrosion or seized blades are the leading cause of fire damper failure, preventing the damper from fully closing when activated.

Question 2

When a smoke damper fails to close upon activation signal, what should be checked first?

Accepted Answer

The actuator and its power supply connection

Answer

The actuator and its power supply should be checked first since a failed or unpowered actuator is the most direct cause of a smoke damper not responding to a closure signal.

Question 3

A bent or damaged blade on a fire damper most commonly indicates what condition?

Accepted Answer

Previous improper access or mechanical impact during maintenance

Answer

Bent blades typically result from technicians forcing the damper open during maintenance without proper tools, or from physical impact during construction activities.

Question 4

If a fusible link has activated but the damper still did not close, what is the most likely cause?

Accepted Answer

The damper blades are seized due to corrosion or debris

Answer

When the fusible link releases but the damper remains open, seized blades from corrosion or debris accumulation are the most likely obstruction preventing closure.

Question 5

What is the correct action when a damper is found stuck in the open position during inspection?

Accepted Answer

Tag it as deficient, notify the building owner, and initiate corrective work

Answer

A stuck-open damper must be tagged as a deficiency, the building owner notified, and a corrective action plan initiated to restore the damper to operational status.

(FSD) Fire and Smoke Damper Certification Practice Test

(FSD) Fire and Smoke Damper Certification Practice Test

FSD FSD Troubleshooting & Repair