Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 525 · 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: “spend at most ₹100” is a constraint (a limit). (a) True (b) False
2. 2.📐 On a plan, 1 cm stands for 2 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
3. 3.🌉 A beam bridge 400 m long rests on the two river banks and on piers in between, making equal spans of 40 m. How many piers are there?
4. 4.🏋️ A force of 360 N pushes a cart 3 m along the floor. How much work is done, in joules?
5. 5.Which of these uses a beam? (a) a truss bridge side (b) a curved stone doorway (c) a shelf on two brackets (d) a crane arm
6. 6.🤝 Is it good or poor teamwork to own up to a mistake? (a) poor teamwork (b) good teamwork
7. 7.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it bends easily (c) it is very light (d) it works in compression
8. 8.True or false: an igloo uses a beam. (a) False (b) True
9. 9.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
10. 10.🔺 One side of a straw bridge is a row of 9 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
11. 11.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) not affected (c) squeezed (compression) (d) floating
12. 12.⚙️ Which simple machine is a road up a hill? (a) lever (b) wheel and axle (c) inclined plane (d) screw
13. 13.What does the team leader do? (a) cuts and joins parts (b) runs the tests (c) shares out the jobs (d) puts the model together
14. 14.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to save ink only (c) to hide sizes (d) to make them pretty
15. 15.🏋️ Work is done when a force moves something … (a) through a distance (b) without moving it (c) very slowly (d) only upwards
16. 16.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) biomedical (c) mechanical (d) chemical
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) building tall and narrow (d) stacking loose bricks
18. 18.🤝 A team of 2 shares 12 equal jobs fairly. Each job takes 9 minutes. How many minutes does each person work?
19. 19.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) arch bridge (c) suspension bridge (d) log bridge
20. 20.Which of these is a suspension bridge? (a) a flat deck on piers (b) deck hangs from cables (c) stones squeezed together (d) good for short gaps
21. 21.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)
22. 22.📋 Your team’s budget is ₹29. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
23. 23.True or false: to share the work fairly is poor teamwork. (a) True (b) False
24. 24.🔺 A flat frame has 6 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
25. 25.True or false: sunlight is a non-renewable energy source. (a) True (b) False
26. 26.🤝 A team of 2 shares 8 equal jobs fairly. Each job takes 5 minutes. How many minutes does each person work?
27. 27.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 1 (c) class 3
28. 28.⚖️ A seesaw balances. Ravi (200 N) sits ? m from the pivot on one side; Meena (300 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
29. 29.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 1000 g. Does it meet the criterion? (a) Yes (b) No
30. 30.Which of these is a lever? (a) a playground slide (b) the tip of a nail (c) a well winch handle (d) a seesaw
31. 31.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
32. 32.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) triangle (d) rectangle
33. 33.Which of these is in compression (pushed)? (a) a pillar under a roof (b) a tent guy rope (c) a suspension cable (d) a stretched rubber band
34. 34.🔺 Which strong shape does a bicycle frame use? (a) arch (b) dome (c) triangle (d) beam
35. 35.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a criterion (b) a constraint
36. 36.📐 How many metres are in 1 kilometre? (a) 1000 (b) 10000 (c) 100 (d) 10
37. 37.True or false: a movable pulley only changes direction. (a) False (b) True
38. 38.🔄 Which design-process step is it to ask who will use it? (a) Create (b) Plan (c) Ask (d) Imagine
39. 39.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
40. 40.True or false: to listen to every idea is good teamwork. (a) False (b) True

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