Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 369 · 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.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) measure the same way (d) skip writing results
2. 2.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) log bridge (c) suspension bridge (d) arch bridge
3. 3.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
4. 4.🔍 Which is the odd one out? (a) float for 1 minute (b) lift a cup of water (c) finish in 40 minutes (d) hold up 500 g
5. 5.🤝 Is it good or poor teamwork to own up to a mistake? (a) poor teamwork (b) good teamwork
6. 6.🤝 In a design team, who shares out the jobs? (a) tester (b) team leader (c) materials manager (d) builder
7. 7.🤝 A team of 3 shares 18 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
8. 8.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
9. 9.⚙️ Which simple machine is a round doorknob? (a) pulley (b) screw (c) lever (d) wheel and axle
10. 10.⚖️ Which class of lever is a crowbar? (a) class 2 (b) class 3 (c) class 1
11. 11.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) two (d) all of them
12. 12.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
13. 13.🔍 Which is the odd one out? (a) carry scissors closed (b) let adults use hot glue (c) leave tools on the floor (d) tie back long hair
14. 14.⚖️ Which class of lever is a beam balance? (a) class 1 (b) class 3 (c) class 2
15. 15.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 550 g. Does it meet the criterion? (a) Yes (b) No
16. 16.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
17. 17.🤝 A team plans for 45 minutes, builds for 60 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
18. 18.🔍 Which is the odd one out? (a) a bottle opener (b) a playground slide (c) a seesaw (d) a crowbar
19. 19.🌉 A beam bridge 20 m long rests on the two river banks and on piers in between, making equal spans of 10 m. How many piers are there?
20. 20.🧪 A paper bridge was tested three times. It held 320 g, 270 g and 220 g. What is the mean (average) load it held, in grams?
21. 21.True or false: an aerospace engineer designs a flyover. (a) False (b) True
22. 22.🪝 A pulley system lifts a 580 N load with an effort of 290 N. What is its mechanical advantage (MA)?
23. 23.🔄 Which design-process step is it to brainstorm many ideas? (a) Plan (b) Ask (c) Imagine (d) Create
24. 24.🌉 A beam bridge 270 m long rests on the two river banks and on piers in between, making equal spans of 45 m. How many piers are there?
25. 25.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 200 g. What is the mean (average) load it held, in grams?
26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
27. 27.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 100 (c) 1000 (d) 10
28. 28.🌉 A beam bridge is 70 m long. Piers split it into equal spans of 10 m. How many spans are there?
29. 29.Which of these uses triangles? (a) a lintel over a door (b) a shelf on two brackets (c) a curved stone doorway (d) an electric pylon
30. 30.🔍 Which is the odd one out? (a) use only paper and tape (b) spend at most ₹100 (c) use at most 20 straws (d) hold up 500 g
31. 31.⚙️ Most simple machines make work easier by letting us … (a) switch off gravity (b) use a smaller force (c) make new energy (d) stop all friction
32. 32.⚖️ A seesaw balances. Meena (200 N) sits 4 m from the pivot on one side; Arjun (400 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
33. 33.🔄 What is the FIRST step of the engineering design process? (a) Test (b) Improve (c) Create (d) Ask
34. 34.🛞 Is friction helpful or a problem here: dragging a heavy box? (a) helpful (b) a problem
35. 35.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
36. 36.Which job does an aerospace engineer do? (a) designs a paint factory (b) plans a space mission (c) designs hearing aids (d) refines crude oil
37. 37.True or false: to test it only once is good testing. (a) True (b) False
38. 38.🦺 How should you carry scissors? (a) by the blades (b) points up, open (c) while running (d) points down, closed
39. 39.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) Ask (c) Improve (d) give up
40. 40.🔍 Which is the odd one out? (a) a tow rope on a car (b) a stretched rubber band (c) a hanging lamp chain (d) a brick at a wall base

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