Refrigeration Boiler Technician - 3rd shift
Posted Sep 15, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time you prevented a breakdown by catching something early.
What they are checking: Whether they are proactive about spotting warning signs during rounds.
How do you stay alert and careful working overnight in an engine room?
What they are checking: Whether they can stay sharp on third shift where mistakes with ammonia can be very dangerous.
What certifications or training are you working toward next?
What they are checking: Whether they are committed to growing their skills in a trade where knowledge is safety.
What would you do
A boiler trips on low water during third shift. Walk me through your response.
What they are checking: Whether they know the safe restart steps and would find the cause before bringing it back.
You're asked to make a change to the refrigeration system that isn't documented. What do you do?
What they are checking: Whether they follow management of change rules instead of making informal modifications.
About the work
Tell me about your hands-on experience with ammonia compressors, condensers and evaporators.
What they are checking: Whether they truly understand how an industrial ammonia system works from end to end.
What does Process Safety Management mean for your daily work as a refrigeration tech?
What they are checking: Whether they see PSM as part of their routine, including procedures, management of change and documentation.
How do you test boiler safety devices, and how often?
What they are checking: Whether they know the checks that prevent a boiler failure from becoming a disaster.
What personal protective equipment do you need when working on ammonia lines, and why?
What they are checking: Whether they take ammonia's dangers seriously and know the right protection.
How do you handle the oil draining and purging tasks on an ammonia system safely?
What they are checking: Whether they know routine but risky ammonia tasks well enough to do them safely.
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