How a car is built Lesson 8 of the technology course of Mova's primary school: 18 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: the lesson at school .
0 A car factory works like a giant recipe: flat steel sheets go in at one end and a finished car drives out at the other, in a modern factory about every minute or two. 1 First huge presses squash the steel into doors and roofs in one blow, then swarms of robot arms join the pieces with thousands of spot welds while sparks fly. 2 The bare body is dipped against rust, painted by robots in dust-free rooms, and then crawls along the assembly line while people and robots add the engine, wheels, seats, wires and windows. 3 Every new car is started, driven a little and sprayed with water to check for leaks, and some cars are crashed on purpose with dummies full of sensors so engineers can make cars safer. 4 One car holds parts from dozens of suppliers in many countries, which is why in 2021 a shortage of tiny computer chips stopped car factories around the world. 5 In the press shop huge presses squash flat steel sheets into doors, roofs and bonnets in one hard blow; they are fenced off and stop if a light beam is broken. 6 Robot arms join the steel pieces with several thousand spot welds to build the bare car body; welding light can hurt eyes, so welding happens behind screens. 7 A car body is dipped in a bath that protects it against rust, then robots spray paint and clear coat in dust-free rooms and ovens bake it hard. 8 Paint shops are kept dust-free because one speck under the paint shows as a bump. 9 On the final assembly line the painted body moves slowly while workers and robots add the engine, wheels, seats, wires and windows, each doing one job; a modern factory can finish a car about every minute or two. 10 Crash-test dummies full of sensors ride in new cars that are crashed on purpose, and they come in sizes including children and babies; groups like Euro NCAP publish safety ratings. 11 Crash tests are why every seat has a belt and children need the right car seat or booster for their size, so the belt sits across them safely. 12 A windscreen is two layers of glass with a plastic sheet between, so when it cracks the pieces stick together in a spider-web pattern instead of flying. 13 Car side windows are toughened glass that breaks into small blunt pieces. 14 Tyres are rubber mixed with carbon black, built in layers around steel and fabric cords and baked in a mould that presses the tread; the carbon black makes them black and stronger. 15 Every new car is started, driven a little, tested on rollers and sprayed with water in a rain booth to check for leaks before it leaves. 16 New cars travel to dealers on double-deck car transporter lorries, and car ships can carry several thousand cars at once. 17 One car has parts from dozens of suppliers in different countries, delivered just in time, and a shortage of computer chips in 2021 stopped car factories around the world. ← previous Toys and Legonext → Phones and computer chips↑ back to Technology This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/technology/8-how-a-car-is-built/