DTT HGV Tachograph Rules 3

Question 1

What does 'Mode 1' (rest symbol — bed icon) on a digital tachograph indicate?

Accepted Answer

The driver is on a qualifying rest period

Answer

Mode 1 (the rest/bed symbol) on a digital tachograph records a rest period. This counts toward the driver's daily and weekly rest requirements under EU Regulation 561/2006.

Question 2

What is the tachograph mode symbol for 'other work'?

Accepted Answer

A hammer or crossed hammers (tools)

Answer

Other work is represented by a hammer or crossed hammers on the tachograph. This covers non-driving work activities such as loading, unloading, administration, or vehicle maintenance.

Question 3

What happens to tachograph data if a driver removes their card from the digital unit mid-shift?

Accepted Answer

The vehicle's internal memory continues recording all data — it is not lost

Answer

The vehicle's tachograph unit has its own internal memory (VU) that records continuously regardless of whether a driver card is inserted. Removing the card mid-shift does not delete or stop recording.

Question 4

Which authority is primarily responsible for enforcing tachograph regulations in Ireland?

Accepted Answer

An Garda Síochána and the Road Safety Authority (RSA)

Answer

Tachograph compliance is enforced by An Garda Síochána at roadside checks and by RSA inspectors at roadside or depot inspections. Both authorities have legal powers to demand records and issue penalties.

Question 5

What is a 'tachograph centre' and what is its role?

Accepted Answer

An RSA-approved workshop that installs, calibrates, and repairs tachographs

Answer

A tachograph centre is an RSA-approved workshop authorised to install, calibrate, seal, and repair tachograph equipment. Only approved centres may perform these tasks — tampered seals indicate illegal interference.

Irish DTT Truck/Bus Practice Test

Irish DTT Truck/Bus Practice Test

DTT HGV Tachograph Rules 3