Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 367 · 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.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Test (b) Create (c) Ask (d) Imagine
2. 2.📐 On a plan, 1 cm stands for 20 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
3. 3.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 50 cm and the load at 10 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
4. 4.🔺 A flat frame has 11 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
5. 5.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 4 weeks?
6. 6.True or false: “a curve under the deck” is a beam bridge. (a) False (b) True
7. 7.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
8. 8.True or false: to try it out is the Test step. (a) False (b) True
9. 9.🤝 Is it good or poor teamwork to share the work fairly? (a) poor teamwork (b) good teamwork
10. 10.⚖️ A seesaw balances. Ravi (190 N) sits 3 m from the pivot on one side; Arjun (570 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
11. 11.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
12. 12.🔍 Which is the odd one out? (a) stand in a fan breeze (b) finish in 40 minutes (c) use at most 20 straws (d) use only paper and tape
13. 13.Which of these needs a transparent material? (a) a car seat belt (b) a tea flask lining (c) a boat hull (d) a window pane
14. 14.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 600 g. Does it meet the criterion? (a) No (b) Yes
15. 15.Which of these is in tension (pulled)? (a) a suspension cable (b) a bridge pier (c) a table leg (d) a squeezed spring
16. 16.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
17. 17.🔺 Which strong shape does an old stone bridge use? (a) triangle (b) arch (c) beam (d) dome
18. 18.🔍 Which is the odd one out? (a) run while holding tools (b) tie back long hair (c) carry scissors closed (d) wear safety goggles
19. 19.🏋️ A machine lifts a load of 180 N when you push with 90 N. What is its mechanical advantage (MA)?
20. 20.🧑‍🔧 Which kind of engineer designs bicycle gears? (a) chemical (b) mechanical (c) biomedical (d) civil
21. 21.True or false: a movable pulley rises with the load. (a) True (b) False
22. 22.True or false: a hanging lamp chain is in compression (pushed). (a) True (b) False
23. 23.🪝 A wheel and axle is a big wheel fixed to … (a) a flat ramp (b) a sharp wedge (c) a loose rope (d) a smaller rod (axle)
24. 24.🔍 Which is the odd one out? (a) a banyan tree (b) a waterfall (c) a bicycle (d) a seashell
25. 25.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 40 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
26. 26.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
27. 27.What does the team leader do? (a) shares out the jobs (b) checks the goals are met (c) runs the tests (d) keeps the design notes
28. 28.Which of these is a pulley? (a) a bottle cap (b) a flagpole rope wheel (c) a jar lid (d) a wheelchair ramp
29. 29.Which of these is in compression (pushed)? (a) a hanging lamp chain (b) a crane lifting cable (c) a swing chain (d) a temple column
30. 30.True or false: a movable pulley halves the effort. (a) True (b) False
31. 31.📋 Your team’s budget is ₹74. You must buy one roll of tape for ₹15. Straws cost ₹5 each. What is the greatest number of straws you can buy?
32. 32.True or false: a tow rope on a car is in tension (pulled). (a) True (b) False
33. 33.🦺 In the workshop, is it safe to carry scissors closed? (a) not safe (b) safe
34. 34.True or false: a movable pulley only changes direction. (a) False (b) True
35. 35.True or false: a raincoat needs an electrical conductor. (a) True (b) False
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 370 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C
37. 37.🔍 Which is the odd one out? (a) a box pushed on carpet (b) sand on a slippery path (c) a grippy rubber sole (d) powder on a carrom board
38. 38.🤝 Is it good or poor teamwork to agree before changing? (a) poor teamwork (b) good teamwork
39. 39.📐 On a plan, 1 cm stands for 2 m. A real bridge is 12 m long. How long is it on the plan, in centimetres?
40. 40.Which job is sandpaper for? (a) smooth a rough edge (b) check a shelf is level (c) make a hole in wood (d) grip and bend wire

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