Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 441 · 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.⚙️ Which simple machine is a playground slide? (a) wheel and axle (b) lever (c) screw (d) inclined plane
2. 2.📐 On a plan, 1 cm stands for 20 m. A real bridge is 120 m long. How long is it on the plan, in centimetres?
3. 3.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) stacking loose bricks (d) using a heavy roof
4. 4.Which of these is in compression (pushed)? (a) a pillar under a roof (b) a hanging lamp chain (c) a tow rope on a car (d) a crane lifting cable
5. 5.🤝 How do engineers share a design with others? (a) no drawings at all (b) clear labelled sketches (c) secret notes (d) only talking fast
6. 6.🏋️ A 16 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
7. 7.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) big things fit on paper (d) to save ink only
8. 8.📐 On a plan, 1 cm stands for 10 m. A wall is 9 cm long on the plan. How long is the real wall, in metres?
9. 9.🔺 One side of a straw bridge is a row of 11 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
10. 10.🔢 To follow the engineering design process, which comes first: “Create” or “Imagine”? (a) Create (b) Imagine
11. 11.🔍 Which is the odd one out? (a) a tug of war rope (b) a hanging lamp chain (c) a crane lifting cable (d) a brick at a wall base
12. 12.True or false: a dam is found in nature. (a) True (b) False
13. 13.Which of these uses a dome? (a) a bicycle frame (b) a lintel over a door (c) a roof truss (d) an igloo
14. 14.📋 Criteria are … (a) goals a design must meet (b) the tools you use (c) the team names (d) the limits on money
15. 15.🔍 Which is the odd one out? (a) a pillar under a roof (b) a crane lifting cable (c) a stretched rubber band (d) a tow rope on a car
16. 16.Which job is a spirit level for? (a) measure a long length (b) cut a wooden plank (c) check a shelf is level (d) turn a screw
17. 17.🛠️ Is a mobile phone made by engineers or found in nature? (a) found in nature (b) made by engineers
18. 18.🔢 To follow the engineering design process, which is the LAST step? (a) Improve (b) Test (c) Plan (d) Ask
19. 19.True or false: to give kind feedback is good teamwork. (a) True (b) False
20. 20.Which of these is an inclined plane? (a) a window blind cord (b) a bottle opener (c) a wheelchair ramp (d) a crowbar
21. 21.Which of these is reuse (use again)? (a) buy less packaging (b) pulp old paper (c) use a jar as a pen stand (d) carry a cloth bag
22. 22.⚖️ A seesaw balances. Meena (480 N) sits 2 m from the pivot on one side; Kabir (240 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
23. 23.Which job does a chemical engineer do? (a) designs power lines (b) designs a flyover (c) designs a paint factory (d) designs a gearbox
24. 24.True or false: to change lots at once is poor testing. (a) True (b) False
25. 25.🛞 More or less friction: sand on a slippery path? (a) more friction (b) less friction
26. 26.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) only if it is red (c) yes, it works (d) no, it breaks a limit
27. 27.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 750 g. Does it meet the criterion? (a) No (b) Yes
28. 28.True or false: a bottle cap is an inclined plane. (a) False (b) True
29. 29.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) rectangle (c) triangle (d) hexagon
30. 30.🪝 A well winch has a handle (wheel) of radius 20 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
31. 31.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 2 N, a wooden plank 6 N, a carpet 9 N. Which surface gave the most friction? (a) ice (b) a carpet (c) a glass sheet (d) a wooden plank
32. 32.💪 Two children push a box to the right, one with 35 N and the other with 35 N. What is the net (total) force on the box, in newtons?
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.True or false: to carry scissors closed is not safe. (a) True (b) False
35. 35.Which of these is made by engineers? (a) a river (b) a bridge (c) a rainbow (d) a seashell
36. 36.True or false: a mechanical engineer designs bicycle gears. (a) False (b) True
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 350 g and design C held 300 g. Which design was the weakest? (a) design B (b) design C (c) design A
38. 38.🤝 A teammate’s idea seems odd. What should you do first? (a) listen and ask why (b) ignore it (c) laugh at it (d) walk away
39. 39.⚖️ A seesaw balances. Kabir (150 N) sits 3 m from the pivot on one side; Asha (450 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
40. 40.Which of these is reuse (use again)? (a) reuse gift paper (b) melt cans into new cans (c) buy less packaging (d) carry a cloth bag

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