DTT HGV Vehicle Inspection and Load Securing

Question 1

What is the purpose of the daily walkaround check for a truck or bus driver?

Accepted Answer

To identify defects, damage, or safety issues before the vehicle is driven — preventing roadside breakdowns and enforcement issues

Answer

A daily walkaround check is a legal requirement for professional drivers. It identifies defects before they cause a breakdown, collision, or enforcement action. Any defects found must be reported to the operator.

Question 2

What items should be checked on the tyres during a walkaround inspection?

Accepted Answer

Tread depth (minimum 1mm for trucks), tyre pressure, condition (cuts, bulges, or damage), and secure fixing of dual wheels

Answer

Tyre checks include tread depth (minimum 1mm for commercial vehicles across 75% of width), inflation pressure, visual condition (cuts, bulges, exposed cords), and for dual-wheeled axles, that no object is wedged between tyres.

Question 3

What must a driver do if they find a defect during the walkaround check?

Accepted Answer

Report it to the transport manager or operator, and do not drive the vehicle if the defect affects roadworthiness

Answer

Any defect must be reported using the operator's defect reporting system. If the defect affects roadworthiness (brakes, tyres, steering, lights), the vehicle must not be driven until repaired.

Question 4

What is a CVRT (Commercial Vehicle Roadworthiness Test) in Ireland?

Accepted Answer

A mandatory annual roadworthiness test for commercial vehicles (trucks, buses, trailers) operated by the RSA

Answer

The CVRT is Ireland's mandatory periodic roadworthiness test for commercial vehicles — similar to the NCT for cars. Most commercial vehicles must pass this test annually to legally operate on the road.

Question 5

What should a driver check regarding the braking system during a pre-trip inspection?

Accepted Answer

Air brake reservoir pressure, brake warning lights, and test the foot and hand brakes before moving

Answer

For air-braked vehicles, check that air pressure builds to correct operating level, warning lights extinguish at correct pressure, the spring (parking) brake releases properly, and the service brake stops the vehicle effectively.

Irish DTT Truck/Bus Practice Test

Irish DTT Truck/Bus Practice Test

DTT HGV Vehicle Inspection and Load Securing