Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 345 · 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.🛞 More or less friction: a box pushed on carpet? (a) less friction (b) more friction
2. 2.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) arch bridge (c) beam bridge
3. 3.⚖️ A seesaw balances. Zoya (190 N) sits ? m from the pivot on one side; Meena (380 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
4. 4.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reduce (b) recycle (c) reuse
5. 5.True or false: a cloud is found in nature. (a) False (b) True
6. 6.True or false: to ignore the team plan is good teamwork. (a) False (b) True
7. 7.🔢 To follow the engineering design process, what comes right after “Create”? (a) Plan (b) Imagine (c) Improve (d) Test
8. 8.⚖️ Which class of lever is a seesaw? (a) class 3 (b) class 1 (c) class 2
9. 9.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
10. 10.🔄 After testing, a design does not work well. What comes next? (a) give up (b) Improve (c) Ask (d) Imagine
11. 11.⚖️ A lever bar balances. The load is 20 N at ? cm from the fulcrum. The effort is 50 N at 20 cm from the fulcrum on the other side. What is the missing distance in centimetres?
12. 12.🔄 Which design-process step is it to list the materials? (a) Test (b) Imagine (c) Plan (d) Ask
13. 13.True or false: a car windscreen needs a waterproof material. (a) True (b) False
14. 14.♻️ Which energy source will never run out? (a) sunlight (b) petrol (c) coal (d) diesel
15. 15.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.True or false: to share the work fairly is poor teamwork. (a) True (b) False
17. 17.🤝 In a design team, who keeps the design notes? (a) materials manager (b) builder (c) recorder (d) tester
18. 18.True or false: diesel is a non-renewable energy source. (a) False (b) True
19. 19.Which of these is in compression (pushed)? (a) a stretched rubber band (b) a tug of war rope (c) a swing chain (d) a squeezed spring
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
21. 21.🔺 One side of a straw bridge is a row of 1 triangle standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
22. 22.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
23. 23.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) a problem (b) helpful
24. 24.True or false: a playground slide is a screw. (a) False (b) True
25. 25.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏋️ A force of 160 N did 960 J of work. How many metres did the object move?
27. 27.📋 A constraint is … (a) a final test (b) a goal for success (c) a kind of glue (d) a limit you must keep to
28. 28.Which of these uses a beam? (a) a planetarium roof (b) a truss bridge side (c) a slab over a canal (d) an igloo
29. 29.🛞 Is friction helpful or a problem here: walking without slipping? (a) a problem (b) helpful
30. 30.🔺 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?
31. 31.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) any child alone (b) the youngest child (c) an adult (d) a stranger
32. 32.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a wheelchair ramp (c) a crowbar (d) a bottle opener
33. 33.True or false: to measure a long length, use a hammer. (a) True (b) False
34. 34.🦺 How should you carry scissors? (a) points up, open (b) by the blades (c) while running (d) points down, closed
35. 35.⚖️ A seesaw balances. Asha (720 N) sits 3 m from the pivot on one side; Ravi (540 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
36. 36.True or false: a movable pulley makes you pull 2× rope. (a) False (b) True
37. 37.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Create (c) Test (d) Ask
38. 38.🔍 Which is the odd one out? (a) a tyre with deep treads (b) sand on a slippery path (c) a smooth steel slide (d) chalk on a gym bar
39. 39.⚖️ A lever bar balances. The load is 450 N at 40 cm from the fulcrum. The effort is ? N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) no, it breaks a limit (c) yes, always (d) only if it is red

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