DTT HGV Tachograph Rules

Question 1

What is the primary purpose of a tachograph in a commercial vehicle?

Accepted Answer

To record driving time, rest periods, and vehicle speed to ensure compliance with EU driver hours regulations

Answer

To track the vehicle's location using GPS

Answer

To monitor fuel consumption and engine performance

Answer

To record cargo weight and load distribution

Question 2

What are the two main types of tachograph in use in Europe?

Accepted Answer

Analogue (chart disc) and digital (smart card)

Answer

Manual log and electronic log

Answer

GPS-based and mechanical

Answer

Paper roll and digital display

Question 3

How often must an analogue tachograph disc be changed?

Accepted Answer

Once every 24 hours — at the latest when the sheet is full

Answer

Every 12 hours or at the start of each new shift

Answer

Once per week or when the disc is full

Answer

Only when the driver changes vehicles

Question 4

What mode symbol represents 'driving' on a digital tachograph display?

Accepted Answer

A steering wheel icon

Answer

A clock face

Answer

A briefcase symbol

Answer

A bed/sleeping icon

Question 5

What information must a driver write manually on an analogue tachograph chart?

Accepted Answer

Name, start location, end location, date, vehicle registration, and odometer readings

Answer

Only their name and date

Answer

Name, employer, and route taken

Answer

Vehicle registration and cargo type only

Question 6

For how long must a driver retain tachograph charts or printouts from digital cards?

Accepted Answer

Charts must be retained for 28 days and available for inspection during that period

Answer

6 months from the date of the journey

Answer

1 year — stored at the employer's premises

Answer

Until the next periodic vehicle inspection