DTT Speed and Stopping Distances 2

Question 1

What is the speed limit on a regional road in Ireland when no other limit is displayed?

Accepted Answer

80 km/h

Answer

The default speed limit on regional roads (R roads) in Ireland is 80 km/h when no other limit is posted.

Question 2

What is the speed limit for a learner driver (driving with an 'L' plate) on a motorway in Ireland?

Accepted Answer

Learner drivers are not permitted on motorways

Answer

Learner drivers are not permitted to drive on motorways in Ireland under any circumstances.

Question 3

How does carrying a heavy load affect a vehicle's stopping distance?

Accepted Answer

It increases stopping distance

Answer

A heavier vehicle has more momentum, which increases the braking distance needed to stop safely.

Question 4

What is the safe following distance rule often used in Ireland to maintain adequate stopping distance?

Accepted Answer

The two-second rule

Answer

The two-second rule means leaving at least a two-second gap between your vehicle and the one ahead, giving you time to react and brake.

Question 5

How does driver fatigue affect stopping distance?

Accepted Answer

It increases stopping distance by lengthening reaction time

Answer

Fatigue slows a driver's reaction time, increasing the reaction distance component of overall stopping distance.

Irish DTT Practice Test