At a junction in Rijswijk an ambulance approaches with its blue beacon on. You hear no siren. Must you give this ambulance priority?
No, without the siren as well it is not a priority vehicle
Yes, as an emergency service an ambulance is a priority vehicle
Yes, the blue beacon makes it a priority vehicle
Explanation
False — the signals decide, not the organisation. Only with blue light and two-tone siren together is a vehicle a priority vehicle, an ambulance included (Book p.116).