Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 295 · 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.🏋️ A 9 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
2. 2.🦺 How should you carry scissors? (a) points up, open (b) while running (c) by the blades (d) points down, closed
3. 3.True or false: a fixed pulley only changes direction. (a) True (b) False
4. 4.Which of these is reuse (use again)? (a) melt cans into new cans (b) print on both sides (c) give old books away (d) carry a cloth bag
5. 5.📋 Constraint: the tower must be no taller than 100 cm. The team’s tower is 98 cm tall. Is it within the constraint? (a) No (b) Yes
6. 6.🔺 Which strong shape does a bicycle frame use? (a) beam (b) dome (c) arch (d) triangle
7. 7.🌉 In a stone arch bridge, the stones are in … (a) tension (b) compression (c) friction (d) no force
8. 8.🛞 More or less friction: a grippy rubber sole? (a) more friction (b) less friction
9. 9.🔺 Why can an arch carry heavy loads? (a) it bends easily (b) it works in compression (c) it is hollow (d) it is very light
10. 10.🛞 Is friction helpful or a problem here: striking a matchstick? (a) helpful (b) a problem
11. 11.🏋️ A smooth ramp is 4 m long and rises 1 m. What effort pushes a 3800 N box up it, in newtons? (ideal ramp, no friction)
12. 12.🧪 A paper bridge was tested three times. It held 380 g, 260 g and 200 g. What is the mean (average) load it held, in grams?
13. 13.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
14. 14.📐 On a plan, 1 cm stands for 5 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
15. 15.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 3 N, a carpet 6 N, sandpaper 9 N, ice 2 N. How many newtons more were needed on sandpaper than on ice?
16. 16.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
17. 17.True or false: to record every result is poor testing. (a) True (b) False
18. 18.🌉 A beam bridge 480 m long rests on the two river banks and on piers in between, making equal spans of 40 m. How many piers are there?
19. 19.🛠️ Is a rainbow made by engineers or found in nature? (a) made by engineers (b) found in nature
20. 20.🔍 Which is the odd one out? (a) steel (b) brass (c) cotton cloth (d) graphite
21. 21.🌉 Which bridge type: “tall towers hold cables”? (a) beam bridge (b) suspension bridge (c) arch bridge
22. 22.True or false: a mechanical engineer designs bicycle gears. (a) True (b) False
23. 23.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
24. 24.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) stacking loose bricks (d) adding cross bracing
25. 25.🔍 Which is the odd one out? (a) hold up 500 g (b) use only paper and tape (c) use at most 20 straws (d) be under 30 cm tall
26. 26.🪢 Compression is a force that … (a) cools things (b) pushes or squeezes (c) makes light (d) pulls or stretches
27. 27.🔄 After testing, a design does not work well. What comes next? (a) give up (b) Imagine (c) Improve (d) Ask
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
30. 30.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) log bridge (c) beam bridge (d) arch bridge
31. 31.Which of these is reuse (use again)? (a) pulp old paper (b) melt cans into new cans (c) turn plastic into tiles (d) plant in old tyres
32. 32.⚙️ Which simple machine is a seesaw? (a) wheel and axle (b) wedge (c) lever (d) pulley
33. 33.📐 On a plan, 1 cm stands for 20 m. A real bridge is 160 m long. How long is it on the plan, in centimetres?
34. 34.True or false: “good for short gaps” is a suspension bridge. (a) True (b) False
35. 35.True or false: a stretched rubber band is in compression (pushed). (a) True (b) False
36. 36.⚖️ Turning effect = force × … (a) colour of bar (b) mass of fulcrum (c) time taken (d) distance from fulcrum
37. 37.⚙️ A screw is really … (a) a kind of wheel (b) a tiny pulley (c) a ramp wrapped round (d) a bent lever
38. 38.True or false: a water filter helps people make power from sunlight. (a) True (b) False
39. 39.True or false: to leave tools on the floor is safe. (a) True (b) False
40. 40.📐 How many metres are in 1 kilometre? (a) 100 (b) 1000 (c) 10000 (d) 10

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