Grade Control Geologist practice interview
Ore and waste definition, production sampling, short-term geological models and reconciliation with plant and mine results. Practise the 6 questions interviewers ask for this role with follow-ups. Paid plans add scored feedback on every answer.
Free with an Intaviu account: 320 credits a month, at 10 credits a minute of practice. Private: interview creators never see them.
- Mid level
- 20 minutes
- 6 questions
- Scored feedback on paid plans
About the role
This interview focuses on the decisions that keep ore and waste moving to the right destinations. The panel wants a geologist who can defend boundaries, maintain reliable sampling, update short-term interpretations and investigate reconciliation gaps. Your answers should connect geological judgement with production realities.
How to prepare
- Revise ore boundary marking, dilution, ore loss and the effect of selective mining limits.
- Prepare an example of finding and correcting a sampling or assay quality problem.
- Review how you reconcile model estimates with mining movements and plant feed results.
- Practise explaining a disputed dig decision to production staff in direct, practical language.
- Think through how new structures or lithological contacts should change a short-term model.
Common mistakes
- Treating assay values as reliable without checking sampling and laboratory controls.
- Drawing geological boundaries that cannot be followed safely by mining equipment.
- Blaming the plant for reconciliation gaps before checking movement, dilution and model assumptions.
- Giving production teams late or ambiguous dig instructions.
What to expect
A real first-round interview
6 questions the way interviewers ask for this role, with follow-ups when an answer needs more.
Spoken, like the real thing
Speak your answers in your browser or the free desktop app, with live captions. You can ask the interviewer to repeat anything.
Scored on 5 areas
The things this interview weighs most. With a paid plan, your report shows how you did on each one.
A private report
On Plus, Pro and Premium: every answer scored, your strongest lines quoted and what to say differently next time. Interview creators never see it.
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