Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 849 · 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.True or false: to give kind feedback is poor teamwork. (a) False (b) True
2. 2.True or false: a pair of tweezers is a class 2 lever (load in the middle). (a) False (b) True
3. 3.⚖️ A seesaw balances. Arjun (? N) sits 1 m from the pivot on one side; Zoya (140 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
4. 4.True or false: a dam helps people store water for summer. (a) True (b) False
5. 5.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
6. 6.Which job does a computer engineer do? (a) lays out a highway (b) designs factory machines (c) designs hearing aids (d) builds a website
7. 7.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) the youngest child (b) a stranger (c) any child alone (d) an adult
8. 8.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) having a wide base (d) fitting rubber base pads
9. 9.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
10. 10.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a criterion (b) a constraint
11. 11.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) choose and draw one (b) build it with straws
12. 12.🔍 Which is the odd one out? (a) a hanging lamp chain (b) a crane lifting cable (c) a table leg (d) a tent guy rope
13. 13.🤝 Is it good or poor teamwork to share the work fairly? (a) good teamwork (b) poor teamwork
14. 14.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
15. 15.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) leaving out steel bars
16. 16.🪝 More rope sections holding a load means … (a) no change (b) less effort needed (c) more effort needed (d) the load floats
17. 17.Which of these is a suspension bridge? (a) the simplest bridge (b) a log across a stream (c) good for short gaps (d) a rope bridge in hills
18. 18.📋 Your team’s budget is ₹68. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
19. 19.⚖️ Turning effect = force × … (a) colour of bar (b) distance from fulcrum (c) mass of fulcrum (d) time taken
20. 20.⚖️ On a seesaw, a heavier child should sit … (a) anywhere (b) closer to the pivot (c) farther from the pivot (d) on the pivot
21. 21.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) yes, always (c) only if it is red (d) no, it breaks a limit
22. 22.True or false: a volcano is made by engineers. (a) True (b) False
23. 23.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
24. 24.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) recycle (b) reduce (c) reuse
25. 25.True or false: a biomedical engineer designs hearing aids. (a) True (b) False
26. 26.True or false: a wheelbarrow is a class 3 lever (effort in the middle). (a) True (b) False
27. 27.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
28. 28.⚖️ A lever bar balances. The load is 200 N at ? cm from the fulcrum. The effort is 160 N at 50 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.True or false: a pair of pliers is a class 3 lever (effort in the middle). (a) True (b) False
30. 30.📐 A beam is 460 cm long. How long is it in metres? =
31. 31.🛞 More or less friction: a rough doormat? (a) more friction (b) less friction
32. 32.What does the tester do? (a) runs the tests (b) keeps the team on track (c) shares out the jobs (d) puts the model together
33. 33.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 40 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
34. 34.🤝 In a design team, who writes down results? (a) tester (b) recorder (c) materials manager (d) team leader
35. 35.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
36. 36.Which job is a protractor for? (a) measure an angle (b) tighten a nut (c) check a shelf is level (d) turn a screw
37. 37.🔺 Which strong shape does an electric pylon use? (a) dome (b) arch (c) beam (d) triangle
38. 38.Which of these happens in the Create step? (a) redesign after testing (b) ask who will use it (c) measure its performance (d) build the model
39. 39.🪢 A concrete slab weighing 12800 N rests evenly on 8 identical pillars. What compression force does each pillar carry, in newtons?
40. 40.🌉 Which bridge type: “a curve under the deck”? (a) suspension bridge (b) arch bridge (c) beam bridge

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