IGCSE Design & Technology (0445) — May–June 2023, Paper 43

(a) Name one example of each of the following natural structures: natural frame structure; natural shell structure; natural mass structure.

Fig. 2.1 shows a diving springboard. (a) Name one force that will act on the springboard, causing it to deform, when a diver jumps up and lands at point X.

(a) Give two benefits of using CAD/CAM in batch production.

Fig. 4.1 shows two arrangements of spur gears (A: small driver, large driven; B: equal-size driver and driven). Describe the changes in output that will occur for each arrangement…

Give one reason for lubricating steel spur gears in a mechanism.

Give one result of not lubricating a mechanism running at high speed.

Fig. 7.1 shows a microswitch inside the casing of a bandsaw, with an operating spring and the bandsaw blade. (a) Give one reason why a microswitch is placed in this position.

Fig. 8.1 shows two methods of connecting lamps in a circuit. Name each method of connection.

Complete Table 9.1 by adding the name of each circuit symbol shown (three symbols).

(a)(i) Give one reason for using reinforcing rods in this concrete beam.

Fig. 11.1 shows a water spray bottle operated by finger pressure on the operating lever. (a)(i) Add the letters 'L', 'F' and 'E' to the correct circles in Fig. 11.1 to identify…

(a) Fig. 12.1 shows three methods of making connections to an electronic circuit: terminal block, plug and socket, spade connector. (a)(i) Give one benefit for each method.