IGCSE Design & Technology (0445) — May–June 2024, Paper 43

Fig. 1.1 shows an aluminium stepladder and a softwood bench. (a) Name the type of structure used in both items.

Beams used in a building can be made from wood, steel, concrete or composite materials. Give one different benefit for each material.

Fig. 3.1 shows a lever (L1) being used to move a link rod that is attached to a second lever (L2), via fixed pivot points and link rods Y and Z. (a) State the class of levers L1…

Oil or grease can be used to reduce friction in a moving joint. Give two benefits of reducing friction in a mechanism.

Give two reasons for using spur gears in a mechanism.

Fig. 6.1 shows three safety symbols (A, B and C) that may be found in a workshop. State the meaning of each safety symbol.

Name one specific material that is used as an electrical insulator.

Complete Table 8.1 by circling the correct unit used to measure different electrical values (one has been completed: power = kW). Electrical values: power, resistance,…

(a) State how a reed switch is operated.

(a) Concrete is commonly used in structures. (a)(i) Name three materials that are used to make concrete.

(a) Fig. 11.1 shows a piece of exercise equipment in a park. The equipment uses feet and hands to operate it (foot pedals shown). (a)(i) From the list below, give the name of the…

(a) Fig. 12.1 shows a rectangular LED that will be used to show the logic level of a NAND gate output. (a)(i) State one way of identifying the negative leg (cathode) of the LED.