Distanza di sicurezza
Passare molto vicino ad un'auto parcheggiata, a bordo della quale si trovano ancora persone, non rappresenta un grave pericolo se avviene a bassa velocità
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Official answer: FALSO
False: Passing very close to an occupied parked car is dangerous even at low speed, because doors may open or people may step out.
Il rispetto della distanza di sicurezza evita la collisione con il veicolo che precede
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Official answer: VERO
True: Keeping a safe distance gives time to stop and avoids colliding with the vehicle ahead.
Il valore della distanza di sicurezza deve essere stabilito anche in base all'andamento planoaltimetrico della strada
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Official answer: VERO
True: Slopes and curves affect braking and visibility, so they help determine the safe distance.
Il valore della distanza di sicurezza deve essere stabilito anche in base all'entità del carico
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Official answer: VERO
True: A heavier or poorly distributed load can lengthen braking distance, so the load affects safe distance.
Il valore della distanza di sicurezza deve essere stabilito anche in base all'efficienza dei freni
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Official answer: VERO
True: Brake efficiency affects stopping distance, so a safe distance must account for it.
Il valore della distanza di sicurezza deve essere stabilito anche in base alla cilindrata del veicolo
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Official answer: FALSO
False: Engine displacement alone is not a factor for safe distance. Speed, road, weather, brakes and load matter.
Il conducente ha l'obbligo di controllare che il veicolo che lo segue rispetti la distanza di sicurezza
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Official answer: FALSO
False: A driver must keep a safe distance from the vehicle ahead, but is not responsible for controlling the follower's distance.
Sulle strade extraurbane, il valore della distanza di sicurezza è sempre pari a 70 metri
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Official answer: FALSO
False: There is no fixed 70-metre safety distance on extra-urban roads; it varies with speed and conditions.
Il valore della distanza di sicurezza deve essere stabilito anche in base alla marcia innestata
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Official answer: FALSO
False: The gear engaged is not a criterion for safety distance; speed and road conditions are.
La distanza di sicurezza è commisurata anche al numero di corsie della strada
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Official answer: FALSO
False: The number of lanes does not determine safety distance; it depends mainly on speed, braking and conditions.
La distanza di sicurezza è una distanza fissa
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Official answer: FALSO
False: the safety distance is not a fixed value; it varies with speed, road and weather conditions, traffic, visibility and the driver's reaction time.
La distanza di sicurezza deve essere di almeno 100 metri nelle forti discese
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Official answer: FALSO
False: there is no fixed 100-metre rule. The safety distance must be long enough to stop safely, so it grows with speed and increases on steep descents but is not a set figure.
La distanza di sicurezza deve essere uguale allo spazio di frenatura aumentato di 20 metri
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Official answer: FALSO
False: no rule adds a fixed 20 metres. The safety distance must at least equal the distance travelled in about one second, adjusted for road, weather and vehicle conditions.
La distanza di sicurezza deve essere mantenuta per evitare lo scontro frontale
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Official answer: FALSO
False: the safety distance prevents rear-end collisions (tamponamento) with the vehicle ahead, not head-on collisions, which depend on keeping to your lane.
La distanza minima di sicurezza se si viaggia a 50 km/h deve essere di circa 14 metri
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Official answer: VERO
True: at 50 km/h a vehicle covers about 14 metres per second, so roughly that distance is the minimum safety distance to keep from the vehicle ahead.
La distanza minima di sicurezza se si viaggia a 30 km/h deve essere di circa 2 metri
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Official answer: FALSO
False: at 30 km/h you cover about 8-9 metres per second, so about 2 metres is far too short; the minimum safety distance is roughly that one-second distance.
La distanza minima di sicurezza se si viaggia a 150 km/h deve essere di circa 25 metri
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Official answer: FALSO
False: at 150 km/h a vehicle covers about 42 metres per second, so the minimum safety distance is around 40 metres, much more than 25.
La distrazione del conducente può essere causata dalla ricerca dei comandi della radio o di altri apparecchi elettronici
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Official answer: VERO
True: looking for radio or electronic device controls takes the driver's eyes and attention off the road, which is a common cause of distraction and reduced safety distance.
In un secondo, si percorrono circa m 28 se si viaggia a 100 km/h
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Official answer: VERO
True: at 100 km/h a vehicle travels about 28 metres in one second, so that is the approximate distance covered in that time.
In un secondo, si percorrono circa m 4 se si viaggia a 50 km/h
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Official answer: FALSO
False: at 50 km/h you travel about 14 metres in one second, not 4 metres, so the minimum safety distance is around 14 metres.
Lo spazio di frenatura si quadruplica se la velocità si raddoppia
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Official answer: VERO
True: braking distance grows with the square of speed, so doubling the speed multiplies the braking distance by four.
Lo spazio di frenatura si raddoppia se la velocità si raddoppia
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Official answer: FALSO
False: braking distance does not simply double with speed; because it depends on the square of speed, doubling speed quadruples it.
Lo spazio di frenatura aumenta se la strada è in discesa
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Official answer: VERO
True: on a downhill slope gravity works against braking, so the braking distance becomes longer than on level road at the same speed.
Lo spazio di frenatura diminuisce sul tratto in discesa di un dosso
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Official answer: FALSO
False: on the downhill stretch of a hump the slope still lengthens braking, so the braking distance increases rather than decreases.
Lo spazio totale di arresto dipende dalla velocità
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Official answer: VERO
True: total stopping distance is reaction distance plus braking distance, and both increase as speed rises, so it depends on speed.
Lo spazio totale di arresto è indipendente dalle condizioni dell'asfalto
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Official answer: FALSO
False: total stopping distance also depends on road surface grip; wet, icy or gravel asphalt lengthens braking compared with dry, clean asphalt.
Lo spazio totale di arresto aumenta se aumenta la velocità
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Official answer: VERO
True: higher speed lengthens both the distance covered during reaction time and the braking distance, so total stopping distance increases.
Lo spazio totale di arresto aumenta se i pneumatici non sono usurati
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Official answer: FALSO
False: tyres that are not worn give good grip and shorten braking. Stopping distance grows with worn tyres, not with well-maintained ones.
Sulla distanza di sicurezza influisce la velocità a cui si viaggia
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Official answer: VERO
True: speed is the main factor in safety distance, because it determines both the distance covered during reaction time and the braking distance.
Sulla distanza di sicurezza influisce la dimensione del veicolo che precede
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Official answer: FALSO
False: the size of the vehicle ahead does not affect safety distance. What matters is speed, road and weather conditions, visibility, traffic and reaction time.