FSD Inspection & Testing Procedures 4 — Questions and Answers
Question 1: An inspector discovers that a fire damper installed in a 2-hour fire-rated wall has a 1.5-hour fire rating. What action is required?
- Document and allow it to remain since it is close to the requirement
- Replace the damper with one rated for 2 hours or higher (Correct answer)
- Add a second damper in series to compensate
- Apply intumescent sealant around the frame to upgrade the rating
Correct answer: Replace the damper with one rated for 2 hours or higher
The damper's fire rating must equal or exceed the fire-resistance rating of the assembly in which it is installed per IBC and NFPA 80.
Question 2: Which of the following best describes the 'reset test' phase of a fire damper inspection?
- Verifying the damper reopens to full rated opening after a manual trip (Correct answer)
- Confirming the fusible link melts at the correct temperature
- Testing the actuator under maximum static pressure
- Checking control wiring continuity
Correct answer: Verifying the damper reopens to full rated opening after a manual trip
The reset test confirms the damper can be restored to its fully open position after being manually tripped, ensuring normal HVAC operation resumes.
Question 3: What condition would cause a fire damper to receive an automatic 'fail' regardless of blade movement during inspection?
- Surface rust on the exterior frame
- Missing or incorrect fusible link (Correct answer)
- Slight misalignment of the access door
- Paint overspray on the blade edges
Correct answer: Missing or incorrect fusible link
A missing or wrong-rated fusible link means the damper cannot activate at the correct temperature, which is an automatic failure.
Question 4: During inspection, an electrically actuated smoke damper does not respond to a signal from the fire alarm control panel. What is the FIRST diagnostic step?
- Replace the damper actuator
- Verify that power and the control signal are reaching the actuator terminals (Correct answer)
- Manually override the damper and close the work order
- Reboot the fire alarm control panel
Correct answer: Verify that power and the control signal are reaching the actuator terminals
Before replacing components, confirm that the correct voltage and control signal are present at the actuator to isolate the fault location.
Question 5: NFPA 80 requires that inspection records be retained for how long?
- Until the next inspection only
- 1 year
- 5 years (Correct answer)
- The life of the building
Correct answer: 5 years
NFPA 80 requires that inspection and testing records be kept for a minimum of 5 years and made available to the AHJ upon request.
Question 6: What is 'curtain blade' design in the context of fire dampers, and why is it relevant to inspection?
- A blade that uses a fabric seal — inspectors check for tears
- Multiple overlapping blades that fold into the damper pocket — inspectors verify full retraction (Correct answer)
- A single solid plate — inspectors verify hinge integrity
- A louvered design — inspectors check louver alignment
Correct answer: Multiple overlapping blades that fold into the damper pocket — inspectors verify full retraction
Curtain blade dampers have multiple folding blades; inspectors must confirm all blades fully retract into the pocket so airflow is not restricted.
Question 7: A damper is located in a ceiling radiation damper (CRD) application. Which additional check is unique to this installation?
- Verifying the damper is oriented with blades horizontal
- Confirming the damper is listed for ceiling radiation damper use and the fusible link faces the ceiling plenum (Correct answer)
- Testing the damper with airflow in both directions
- Checking that the damper is painted to match ceiling tiles
Correct answer: Confirming the damper is listed for ceiling radiation damper use and the fusible link faces the ceiling plenum
CRDs must carry a specific UL listing and be installed with the fusible link on the plenum side to detect heat from a ceiling-space fire.
FSD Inspection & Testing Procedures 4
An inspector discovers that a fire damper installed in a 2-hour fire-rated wall has a 1.5-hour fire rating.
What action is required?