Speed limit questions are among the most straightforward on the theory test, but they still catch people out. Whether you’re driving through Roscommon’s built-up areas at 50 km/h or on national roads at 100 km/h, knowing the limits is non-negotiable.
Roscommon’s flat midlands terrain makes for straightforward driving conditions. The N5 and N6 pass through the county, but most roads are quiet rural routes. Roscommon town is compact and easy to navigate. This is one of Ireland’s most rural counties — expect slow-moving agricultural traffic, unmarked crossroads, and limited street lighting. Winter conditions can include flooding in low-lying areas near the Shannon.
Speed limit questions are pure memorisation — there’s no logic to derive, you either know the number or you don’t. The good news is there are only a handful of speed limits to learn.
The key numbers: Built-up areas: 50 km/h. Regional roads: 80 km/h. National roads: 100 km/h. Motorways: 120 km/h. Special zones (schools, housing estates) may have 30 km/h limits. Learner drivers have no separate speed limits but must display L plates.
Study approach: Create a simple table of all speed limits and review it daily. The questions will test you on specific scenarios (“what is the speed limit on a regional road?”) rather than asking you to recall the full table.
Common trap: The default speed limit when entering a built-up area is 50 km/h even without a sign — the built-up area boundary sign itself implies 50.
Q1.What is the speed limit on a motorway?
Q2.What is the default speed limit in built-up areas?
Q3.What is the speed limit on a national road?
These are just a sample. L-Plate has all 60 speed limits questions with AI-powered explanations.
Built-up: 50 km/h, National: 100 km/h, Motorway: 120 km/h
School zones: 30 km/h during school hours
Special speed limits are indicated by signs
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Built-up areas: 50 km/h, Regional roads: 80 km/h, National roads: 100 km/h, Motorways: 120 km/h.
30 km/h during school hours in school zones.
Roscommon has one test centre in Roscommon town with an approximate 5-week wait, among the shortest in Ireland.
Roscommon is a quiet town which can be good for nervous test-takers. The test itself follows the same RSA standard as everywhere else.
The RSA question bank contains 60 speed limits questions. On any given test, you’ll typically see 3–12 questions from this category depending on the random selection.
The national average pass rate for speed limits questions is 78%. Practising all 60 questions on L-Plate significantly improves your chances.