Elementi costitutivi del veicolo importanti per la sicurezza; manutenzione ed uso; stabilità e tenuta di strada del veicolo;

This Patente B topic groups 30 tips covering 284 official exam questions. Each tip explains the rule in plain language so you remember it on exam day.

• Grip force keeps you on the roadGrip force makes the car move and lets you follow the road you want. In a curve it pushes…
• Grip increases on rough asphaltGrip is greater when the asphalt is rough (not smooth). It drops if the asphalt is wet or…
• Low grip: go slowWith low grip the wheels slide and you need more space to stop. You must always slow…
• Low grip: more danger in curvesWith low grip, take the curve slowly: you slide more easily and need more space to stop…
• On a motorbike: watch tracks and linesIf you ride a motorbike, remember that in the rain the tires hold less on tram tracks and…
• More grip on dry, clean asphaltGrip force is greater when the asphalt is dry and clean. It drops if the road is dirty…
• In a curve the force pushes outwardIn a curve the car is pushed outward. If you go too fast you can skid or roll over, so…
• What makes a car roll over in a curveA car rolls over more easily if the load is high up or not well secured, if the wheels…
• Faster in a curve, more riskIn a curve the force that can roll you over grows when you go faster. So slow down before…
• ABS: the wheels don't lockABS keeps the wheels from locking and lets you steer even while braking hard. It works on…
• Tire pressure: check when tires are coldCheck the tire pressure when the tires are cold, including the spare wheel. Adjust it to…
• Tyres: minimum tread and tubelessThe tread must be at least 1.6 mm for cars and 1.0 mm for motorbikes. After a few years…
• Snow tyres, studded tyres and chainsWinter tyres go on all the wheels, and with them the speed limits stay the same. Studded…
• How to change a wheelStop the car on flat, hard ground, pull the handbrake and put it in gear. Loosen the…
• Brakes: ABS, engine braking and downhillWith ABS press the pedal hard and do not let go. On a long downhill put it in a low gear…
• Car fire after an accidentIf there is a risk of fire, switch off the dashboard by turning the key. If you do not…
• Distractions while drivingUse the phone only with hands-free or an earpiece, never to write texts. Do not put…
• Clean windows and windscreen wipersClean, clear windows let you see better; stickers and pendants on the windows make you…
• Tyres: size, pressure and wearUse tyres of the right size, the same on the same axle, inflated as the manufacturer…
• Brake system: fluid and brake servoCheck the brake fluid every now and then. The brake servo does not work with the engine…
• When the brakes brake badlyThe brakes brake badly if there is air in the circuit, if the seals or discs are worn, if…
• Suspension: where it is and what it is forThe suspension is between the chassis and the wheels. It serves to cushion the bumps, to…
• Damaged suspension and too much weightThe suspension gets damaged by hard bumps and too much weight. If it does not work well…
• Shock absorbers and road gripShock absorbers reduce bouncing and keep the car stuck to the road. If you overload the…
• Worn shock absorbers: only problemsWorn shock absorbers are a fault: the car brakes and turns badly, the tyres wear out…
• Heavy steering or steering that vibratesIf the power steering breaks, the steering becomes heavy (and with the engine off it does…
• Muffler and exhaustThe exhaust carries the gases out after making them less toxic, less hot and less noisy…
• Emergency switch on the motorcycleOn the motorcycle the emergency switch is on the handlebar and turns off the engine…
• Motorcycle drive chainThe chain connects the engine to the rear wheel: it must be checked, oiled and kept at…
• Checking levels on the motorcycleOn the motorcycle check the engine oil and the brake fluid. The oil is checked with the…