Step 3 · Interview How to interview for each fire protection role.
Everyone who applies will claim the experience. These are the questions that test it, the signals that separate a strong candidate from a plausible one, and the mistake each seat invites.
Fire Alarm Technician
My Trade Talent band Installs, programs, tests and services fire alarm systems: initiating devices, notification appliances, control panels, and the interfaces to elevators, HVAC smoke control and sprinkler supervision. Most of the work is governed by NFPA 72 and witnessed by an authority having jurisdiction.
Questions that find out
- Walk me through an NFPA 72 acceptance test on a new addressable system.
- A device keeps reporting a ground fault intermittently. How do you isolate it?
- How do you handle the elevator recall interface on a retrofit?
What a strong candidate shows
- NICET level stated, and the candidate knows what it did and did not qualify them for
- Names specific panel platforms programmed rather than listing manufacturers seen
- Has run an acceptance test with an AHJ present and can describe how it went wrong once
The mistake this seat invites. Treating this as low-voltage electrical work. The code knowledge and the AHJ relationship are the job; pulling the cable is the easy part.
Fire Sprinkler Fitter
My Trade Talent band Installs and services wet, dry, pre-action and deluge sprinkler systems: hanging and joining pipe, setting heads to the design layout, installing risers and backflow assemblies, and hydrostatic testing before the system is accepted. Works to NFPA 13 and to a fabrication drawing that someone else produced.
Questions that find out
- What changes when you install a dry system in an unheated warehouse rather than a wet system?
- The drawing puts a head where a duct now runs. What do you do?
- Walk me through a 200 psi hydrostatic test and what you watch for.
What a strong candidate shows
- Can read a sprinkler shop drawing and spot where it will not fit the ceiling that is actually there
- Knows why a dry system behaves differently from a wet one in both installation and trouble calls
- Has done hydrostatic testing and can describe a failed test and the fix
The mistake this seat invites. Screening on pipefitting experience alone. The pipe skills transfer; the code, the head spacing rules and the testing discipline do not come with them.
Fire Alarm / Sprinkler Designer
My Trade Talent band Produces the drawings and hydraulic calculations that the installation is built from and the AHJ approves: head layout and spacing, pipe sizing, remote-area calculations, device placement and riser diagrams. The design decides whether the job is buildable and whether it passes.
Questions that find out
- How do you choose the remote area for a hydraulic calculation?
- An AHJ rejects your head spacing in a sloped-ceiling area. What is the likely reason?
- How do you coordinate sprinkler mains against mechanical in a tight plenum?
What a strong candidate shows
- Hydraulic calculation described as judgement about the remote area, not as software output
- Has had designs rejected by an AHJ and can say why and what changed
- Coordinates with ductwork and structure before issuing, not after
The mistake this seat invites. Hiring on CAD or HydraCAD fluency. The software is learnable; knowing which calculation to run and which AHJ will question it is not.
Every role in every trade is in the interview question bank.