Inspection & Testing Procedures Flashcards
7 cards from real FSD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Inspection & Testing Procedures flashcards as text
When inspecting a smoke damper tied to a stairwell pressurization system, what additional functional test should be performed beyond a standard open/close cycle?
Answer: Verify the damper can sustain closure against the pressurization differential
Stairwell pressurization creates significant differential pressure; the damper must hold its closed position against that pressure to be effective.
Which scenario correctly describes a 'dynamic closure' test for a smoke damper?
Answer: The damper is closed while the fan is running and air is flowing through the duct
A dynamic closure test verifies that the damper can close against live airflow, simulating real emergency conditions.
After completing repairs on a deficient fire damper, what step must occur before the inspection record is closed out?
Answer: The damper must be retested and pass all applicable functional tests
Any repaired damper must be retested to confirm the repair resolved the deficiency and the unit now meets all requirements.
During inspection of a multi-blade fire damper, one blade fails to reach the fully closed position due to a bent frame. Which rating consideration applies?
Answer: The damper fails because the assembly cannot meet its listed fire rating with gaps
Any gap caused by frame damage prevents the damper from achieving the airtight closure required by its fire rating, resulting in failure.
What is the significance of a UL 555 listing mark on a fire damper during inspection?
Answer: It confirms the damper has been tested and listed as a fire damper meeting recognized performance standards
UL 555 is the standard for fire dampers; the listing mark confirms the damper has passed testing for fire-resistance performance.
An inspector notes that the sleeve (frame) of a fire damper extends less than the minimum required distance into the wall opening. What is the risk?
Answer: The damper may not maintain the integrity of the fire-rated assembly during a fire
Insufficient sleeve embedment can allow fire and hot gases to bypass the damper through gaps between the sleeve and the wall assembly, compromising the rating.
When an inspector cannot physically cycle a fire damper due to lack of an access door, what is the correct classification of that damper?
Answer: Fail — inaccessible dampers cannot be inspected and must be corrected
NFPA 80 requires that all fire dampers be accessible for inspection; a damper that cannot be accessed is a code violation and must be cited as a failure.