Machine operator phone screen questions
Machine operator is a broad title, so the screen has to pin down which machines, how much setup the candidate can do, and whether they can measure parts. A candidate who runs a CNC lathe and one who tends a packaging line are different hires.
Eight questions, and what to listen for
Ask them in this order. The first two sort the pool; the middle ones show judgment; the last ones settle logistics before anyone books an interview.
- 1
Which machines have you operated, and for how long on each?
Listen for: Named machines (CNC mill or lathe, press brake, injection molding, packaging line) with time on each. Vague answers usually mean machine tending, which is fine if that is the order.
- 2
Do you set up the machine, or do you run it after someone else sets it up?
Listen for: An honest answer. Setup operators earn more and are harder to find; flag them.
- 3
Which measuring tools do you use to check parts?
Listen for: Calipers, micrometers, height gauges, go/no-go gauges. A candidate who checks parts every run names them without thinking.
- 4
Can you read a blueprint or work order and find the tolerances?
Listen for: Yes with an example, or a clear limit.
- 5
Walk me through lockout/tagout before you clear a jam or change tooling.
Listen for: Shut down, isolate energy, lock, tag, verify zero energy. Reaching in without locking out is a hard no.
- 6
What do you do when parts start coming out of tolerance?
Listen for: Stop or flag it, check the tool and offsets, tell the lead, quarantine bad parts. Listen for ownership.
- 7
Which shifts can you work, including nights and overtime?
Listen for: Exact availability. Night shifts on machine work are the hardest to fill.
- 8
Can you stand for a full shift and lift up to 50 pounds, with or without reasonable accommodation, and when could you start?
Listen for: A plain yes or a stated limit, and a date. Do not probe for reasons.
Red flags on the call
- Cannot name a machine they have run
- Describes clearing jams without lockout/tagout
- Keeps running when parts go out of tolerance
- Shift availability does not match the order
Keep it short
Five questions, four to six minutes. Machine operator candidates are usually applying to several jobs at once; a screen they can finish between shifts gets finished. Save the deeper questions for the interview, where the candidate has already answered these once.
Ask whether the candidate can perform an essential task with or without reasonable accommodation; do not ask about disability or medical history. Avoid age, family, religion, national origin and other protected characteristics. See the EEOC's hiring-question guidance.
Run this exact screen for every machine operator who applies
Create a role in PhoneScreen with these five questions, share the link, and every candidate gets the same screen the moment they call. You read the scorecards. First 10 screens are free.
- 1Which machines have you operated, and for how long on each?
- 2Do you set up the machine, or run it after someone else sets it up?
- 3Which measuring tools do you use to check parts?
- 4Walk me through lockout/tagout before you clear a jam or change tooling.
- 5Which shifts can you work, and when could you start?
Common questions
How do we verify skills the phone screen cannot test? +
Use the screen to sort, then verify at the plant with a short measuring test or a supervised run. Screening first means the plant only tests candidates whose machines and shifts already match.
Can we score setup operators separately from machine tenders? +
Yes. The setup question is scored on its own, so you can sort the list by it and send setup operators to the orders that need them.
Screening for staffing agencies · More roles: janitor and custodian, manufacturing production worker, forklift operator, caregiver, CDL truck driver, line cook · Why the same questions for everyone