In the UK, the Association for Project Management and the government's GovS 002 standard are the reference points below. In an interview, use the vocabulary of the employer, and ask which method the team follows.
The Association for Project Management defines project management as the application of processes, methods, skills, knowledge and experience to achieve specific project objectives within agreed parameters, and says it differs from general management because its deliverables are constrained to a finite timescale and budget. APM adds that it means satisfying the differing needs of a project's stakeholders and that projects needing formal management require the management of risks.
The government's project delivery standard, GovS 002, sets out the same ground for public sector work: risk and issue management with named owners, stakeholder engagement plans, change control with recorded requests and impact assessment, benefits management with owners, assurance and learning from experience. Even if you apply for a private sector post, panels listen for these habits.