Get app
Get app

In which vehicles is it mandatory to have a free/available indicator light?

Traffic safety: Plates

In which vehicles is it mandatory to have a free/available indicator light?
The free indicator lighting is mandatory in taxis because these vehicles must constantly inform other drivers about their movements to ensure road safety.

Select an answer

Related questions to practise next

Keep exploring the same topic and move deeper into the Spanish driving theory test.

Must trailers with a GVW of 900 kg carry a license plate different from that of the towing vehicle?
Traffic safety: Plates Must trailers with a GVW of 900 kg carry a license plate different from that of the towing vehicle? Open question
Can the front license plate be placed on the left or right side of the vehicle’s front longitudinal median plane?
Traffic safety: Plates Can the front license plate be placed on the left or right side of the vehicle’s front longitudinal median plane? Open question
See the app before you download

This is what ProntoTest looks like on your phone

Study real DGT questions in English and check the Spanish meaning with instant translation when you need it.

Real app screen inside the phone
Questions available in English
Fast translation into English while you practise
Why continue with ProntoTest

Turn one answer into real exam progress

Structured learning

Move from one doubt to a clearer study flow with theory, topic-based questions, exam simulations and mistake review in one app.

Tests always within reach

Practise on your phone whenever you have a few minutes, then pick up exactly where you left off without jumping between scattered resources.

Progress you can actually track

See your results, spot weak topics and use your mistake history to study with purpose and improve faster.

Quick answers before you continue

Can I keep studying in the app after this free question?

Yes. The public page is only the entry point. In the app you can continue with more questions, explanations, translations and progress tracking.

Can I also use the web version after this?

Yes. Web access works together with the app: install ProntoTest, sign in on mobile, and then open the web version by scanning the login QR from the app.

Is this page useful if I want the Spanish theory test in English?

Yes. The English version is written for people preparing the Spanish DGT theory test in English and includes a translation toggle plus app CTA.

Do you explain the correct answer?

Yes. Each public question includes a hint and an explanation block so the page is useful even before you open the app.