Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 659 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to use more paper (d) to get reliable results
2. 2.Which need does a bridge meet? (a) carry many people far (b) keep food fresh longer (c) reach a top floor fast (d) cross a wide river
3. 3.⚖️ A lever bar balances. The load is 200 N at 30 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
4. 4.🪝 A bucket weighing 240 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
5. 5.📐 A beam is 670 cm long. How long is it in metres? =
6. 6.🪝 A load of 80 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
7. 7.True or false: to repeat each test is good testing. (a) True (b) False
8. 8.True or false: a chemical engineer designs a gearbox. (a) False (b) True
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the strongest? (a) design B (b) design A (c) design C
10. 10.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
11. 11.Which of these needs an electrical conductor? (a) a water tank (b) a cooking pot handle (c) a raincoat (d) a plug pin
12. 12.🏋️ A force of 170 N did 340 J of work. How many metres did the object move?
13. 13.📐 On a plan, 1 cm stands for 2 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
14. 14.True or false: to use a new load each time is good testing. (a) True (b) False
15. 15.🪝 A bucket weighing 110 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
16. 16.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) adding cross bracing (d) stacking loose bricks
17. 17.⚙️ A screw is really … (a) a tiny pulley (b) a ramp wrapped round (c) a bent lever (d) a kind of wheel
18. 18.♻️ Which energy source will never run out? (a) petrol (b) diesel (c) sunlight (d) coal
19. 19.⚖️ Which class of lever is a pair of tweezers? (a) class 1 (b) class 2 (c) class 3
20. 20.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
21. 21.True or false: a fixed pulley only changes direction. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a rough doormat (b) sand on a slippery path (c) a tyre with deep treads (d) a wheel on ball bearings
23. 23.🔢 To follow the engineering design process, which comes first: “Imagine” or “Plan”? (a) Plan (b) Imagine
24. 24.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
25. 25.🔧 Which tool would you use to measure an angle? (a) a tape measure (b) a saw (c) a protractor (d) a screwdriver
26. 26.🔍 Which is the odd one out? (a) a tyre with deep treads (b) skating on ice (c) oil on a squeaky hinge (d) a smooth steel slide
27. 27.🔺 A beam bends under a load. Its top side is … (a) floating (b) squeezed (compression) (c) not affected (d) stretched (tension)
28. 28.📐 Why do engineers use scale drawings? (a) to make them pretty (b) big things fit on paper (c) to save ink only (d) to hide sizes
29. 29.Which of these happens in the Ask step? (a) check it against goals (b) pick the build order (c) find the limits (d) redesign after testing
30. 30.📐 On a plan, 1 cm stands for 10 m. A wall is 11 cm long on the plan. How long is the real wall, in metres?
31. 31.🔄 Which design-process step is it to ask who will use it? (a) Ask (b) Plan (c) Test (d) Create
32. 32.Which of these needs a transparent material? (a) the core of a wire (b) a hair band (c) a car seat belt (d) a spectacle lens
33. 33.⚙️ Which simple machine is a knife edge? (a) lever (b) screw (c) wedge (d) wheel and axle
34. 34.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
35. 35.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a constraint (b) a criterion
36. 36.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) chemical (b) civil (c) biomedical (d) mechanical
37. 37.Which of these uses a beam? (a) a curved stone doorway (b) a slab over a canal (c) a roof truss (d) an igloo
38. 38.🦺 How should you carry scissors? (a) while running (b) points up, open (c) by the blades (d) points down, closed
39. 39.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) adding steel to concrete (d) keeping a simple shape
40. 40.🏋️ Pushing a crate 10 m took 1500 J of work. What force was used, in newtons?

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