Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 203 · 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.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 800 g. Does it meet the criterion? (a) Yes (b) No
2. 2.True or false: a civil engineer designs electric motors. (a) False (b) True
3. 3.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
4. 4.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reduce (b) reuse (c) recycle
5. 5.Which job does a biomedical engineer do? (a) plans a power grid (b) designs aeroplane wings (c) designs artificial limbs (d) writes app software
6. 6.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) only if it is red (b) yes, always (c) yes, it works (d) no, it breaks a limit
7. 7.⚖️ A seesaw balances. Kabir (? N) sits 1 m from the pivot on one side; Asha (180 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
8. 8.True or false: powder on a carrom board gives more friction. (a) True (b) False
9. 9.🌉 A beam bridge 120 m long is split by piers into 4 equal spans. How long is each span, in metres?
10. 10.🔍 Which is the odd one out? (a) use only paper and tape (b) lift a cup of water (c) use at most 20 straws (d) be under 30 cm tall
11. 11.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
12. 12.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a criterion (b) a constraint
13. 13.🤝 In a design team, who puts the model together? (a) recorder (b) materials manager (c) team leader (d) builder
14. 14.🪢 A stage stands on 3 identical legs and each leg is squeezed with 425 N. What is the total load on the stage, in newtons?
15. 15.Which of these is in tension (pulled)? (a) a temple column (b) a squeezed spring (c) a tall bridge tower (d) a swing chain
16. 16.🤝 A teammate’s idea seems odd. What should you do first? (a) listen and ask why (b) ignore it (c) walk away (d) laugh at it
17. 17.🪢 Tension or compression: a pillar under a roof? (a) tension (b) compression
18. 18.Which of these happens in the Ask step? (a) measure its performance (b) ask who will use it (c) list the materials (d) draw a labelled diagram
19. 19.🪝 A well winch has a handle (wheel) of radius 24 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
20. 20.🔧 Which tool would you use to smooth a rough edge? (a) a spanner (b) a tape measure (c) sandpaper (d) a spirit level
21. 21.🔍 Which is the odd one out? (a) a table leg (b) a stone in an arch (c) a stretched rubber band (d) a bridge pier
22. 22.🔄 Which design-process step is it to find the limits? (a) Plan (b) Ask (c) Create (d) Improve
23. 23.Which of these happens in the Improve step? (a) list the materials (b) make it better, retest (c) build the model (d) define the problem
24. 24.True or false: a temple column is in compression (pushed). (a) True (b) False
25. 25.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) sketch three ideas (b) load it with coins
26. 26.📐 On a plan, 1 cm stands for 5 m. A wall is 13 cm long on the plan. How long is the real wall, in metres?
27. 27.📋 Criteria are … (a) goals a design must meet (b) the tools you use (c) the team names (d) the limits on money
28. 28.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) aerospace (c) biomedical (d) electrical
29. 29.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) repeat each test (d) guess, do not measure
30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) plastic (d) dry wood
31. 31.💪 A cart is pulled to the right with 55 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
32. 32.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) wobbly (b) rigid
33. 33.🤝 A team plans for 25 minutes, builds for 55 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
34. 34.🔍 Which is the odd one out? (a) hold up 500 g (b) spend at most ₹100 (c) use at most 20 straws (d) fit on a school desk
35. 35.🌉 In a stone arch bridge, the stones are in … (a) compression (b) tension (c) friction (d) no force
36. 36.True or false: a computer engineer designs car engines. (a) True (b) False
37. 37.🛞 More or less friction: oil on a squeaky hinge? (a) more friction (b) less friction
38. 38.True or false: a movable pulley rises with the load. (a) True (b) False
39. 39.True or false: to change lots at once is poor testing. (a) False (b) True
40. 40.Which of these is a suspension bridge? (a) a rope bridge in hills (b) the simplest bridge (c) a curve under the deck (d) good for short gaps

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