NT Driver Knowledge Test study materials
NT Driver Knowledge Test study resources

NT Driver Knowledge Test common mistakes

NT Driver Knowledge Test · Understand the traps and how to avoid them.

Mistake 1

At a stop sign, slowing to a crawl and rolling through when the road looks clear instead of coming to a complete halt and checking both directions before moving off.

Candidates transfer everyday driving habits into the test and treat 'stop' as 'slow down and look', underestimating how strictly the rule is applied.

What to do instead

Learn the rule as an absolute: wheels must stop turning at the line (or before the intersection if no line), then check left, right and ahead before proceeding. Practise it on every approach, not just busy ones.

Mistake 2

At an uncontrolled intersection or roundabout, giving way based on who arrived first or who is being polite rather than applying the give-way rules, such as giving way to vehicles already in the roundabout or to the right where required.

Everyday courtesy and 'first come, first served' instincts conflict with the formal priority rules, and the rules differ between intersections and roundabouts.

What to do instead

Memorise the priority hierarchy: at roundabouts give way to traffic already circulating; at uncontrolled cross intersections give way to the right; turning vehicles give way to pedestrians and through traffic. Rehearse each scenario verbally until the rule, not instinct, drives the answer.

Mistake 3

Choosing a following distance by feel rather than applying a defined gap such as the three-second rule, and treating it as fixed regardless of rain, night or heavy vehicles.

In light traffic a short gap feels safe because nothing has gone wrong yet, and candidates forget that the gap must grow with speed and poor conditions.

What to do instead

Use a fixed reference point and count seconds behind the vehicle ahead; state explicitly that the gap increases in rain, at night, or when following a truck that blocks the view ahead. Learn the stopping-distance components (reaction plus braking) so the number has meaning.

Mistake 4

Misreading regulatory signs and road markings, for example confusing a give-way sign with a stop sign, a 'no stopping' line with a 'no parking' line, or a lane arrow indicating a turn-only lane.

Signs and markings are learned by rough shape or colour memory rather than by exact meaning, and similar-looking signs are grouped together in the mind.

What to do instead

Study signs by shape and colour family (octagon stop, inverted triangle give way, circle for commands, rectangle for information) and pair each with its painted road marking. Test yourself by describing the required driver action for each sign, not just its name.

Mistake 5

Failing to check blind spots with a shoulder check before changing lanes, merging, or moving off from a kerb, relying only on mirrors.

Mirrors leave a blind spot beside and behind the vehicle, and drivers who have not had a near miss do not believe anything can hide there.

What to do instead

Build a fixed sequence: mirror, indicate, shoulder check, move. Practise the shoulder check until it is automatic, and remember to signal for long enough before the manoeuvre so other road users can react.

Mistake 6

Not adjusting speed and position for hazards such as parked cars, pedestrians near the kerb, school zones, or wet roads, and continuing at the limit because the limit is legal.

Candidates equate 'under the speed limit' with 'safe speed' and treat hazard perception as a separate topic rather than part of choosing speed.

What to do instead

Learn that the limit is a maximum, not a target. Scan far ahead, identify a hazard, and decide the response (slow, cover the brake, increase clearance) before reaching it. Practise narrating hazards aloud while driving so the habit becomes conscious.

Mistake 7

Misjudging safe gaps when turning across traffic or entering a stream of vehicles, especially at higher speeds, and pulling out when the gap is only adequate for a slower approach.

Gap judgement is learned by experience and tends to be optimistic; candidates underestimate closing speed and overestimate their own acceleration.

What to do instead

Learn to judge gaps by time, not distance: pick a point and count how long until the approaching vehicle reaches it. When in doubt, wait. Remember that a vehicle travelling faster covers the same gap in less time, so speed matters as much as distance.

Mistake 8

Confusing licence obligations such as learner and provisional conditions, displaying plates, supervision requirements, demerit points and suspension thresholds, or the rules for carrying passengers.

These rules are numerous, vary by licence stage, and are often learned second-hand from friends rather than from the official handbook.

What to do instead

Build a one-page summary per licence stage covering plates, supervision, passenger limits, blood alcohol limit, demerit threshold and suspension consequences, and check it against the current official handbook, since these rules change.

Mistake 9

Ignoring vehicle standards and road-law duties, such as driving an unregistered or uninsured vehicle, failing to keep lights and tyres roadworthy, not carrying a licence, or not reporting a crash or exchanging details when required.

These obligations are administrative and rarely encountered day to day, so they are studied last and remembered least.

What to do instead

Group them as 'before you drive' (registration, insurance, roadworthiness, licence carried) and 'after an incident' (stop, exchange details, render assistance, report when required). Learn each as a checklist item with its consequence for non-compliance.

Mistake 10

Answering questions from general driving intuition instead of the specific rule being tested, particularly on questions about indicating, U-turns, parking near intersections, and giving way to pedestrians.

Many everyday behaviours are common but not strictly legal, and candidates answer what they usually do rather than what the law requires.

What to do instead

For each practice question, identify which rule is being tested before choosing an answer, and review every wrong answer against the handbook wording. Flag any habit that conflicts with the rule and consciously replace it during practice drives.